Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual

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Details

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Title

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1		-RS485-LN – RS485 to LoRaWAN Converter
	1	+RS485-LN – RS485 to LoRaWAN Converter User Manual

Author

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1		-XWiki.Xiaoling
	1	+XWiki.Saxer

Content

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1		-(% style="text-align:center" %)
2		-[[image:1653266934636-343.png||height="385" width="385"]]
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4	4
5	5
6		-**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7	7
8	8
	12	+
	13	+
	14	+
9	9	**Table of Contents:**
10	10
	17	+{{toc/}}
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12	12
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13	13
14	14
15		-= 1.Introduction =
16	16
	27	+
	28	+
	29	+
	30	+
	31	+= 1. Introduction =
	32	+
17	17	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
18	18
	35	+
19	19	(((
20		-(((
21	21	The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
22	22	)))
23	23
24	24	(((
25		-RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
	41	+RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
26	26	)))
27	27
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31	31
32	32	(((
33	33	(% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
	50	+)))
34	34
	52	+(((
35	35	(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
36	36	)))
37		-)))
38	38
39		-[[image:1653267211009-519.png||height="419" width="724"]]
40	40
	57	+(% aria-label="1653267211009-519.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653267211009-519.png||data-widget="image" height="419" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
41	41
	59	+
42	42	== 1.2 Specifications ==
43	43
44	44
45		-**Hardware System:**
	63	+(% style="color:#037691" %)**Hardware System:**
46	46
47		-* STM32L072CZT6 MCU
	65	+* STM32L072xxxx MCU
48	48	* SX1276/78 Wireless Chip
49	49	* Power Consumption (exclude RS485 device):
50	50	** Idle: 32mA@12v
51	51	** 20dB Transmit: 65mA@12v
52	52
53		-**Interface for Model:**
	71	+(% style="color:#037691" %)**Interface for Model:**
54	54
55	55	* RS485
56	56	* Power Input 7~~ 24V DC.
57	57
58		-**LoRa Spec:**
	76	+(% style="color:#037691" %)**LoRa Spec:**
59	59
60	60	* Frequency Range:
61	61	** Band 1 (HF): 862 ~~ 1020 Mhz
...	...	@@ -74,12 +74,13 @@
74	74	* Preamble detection.
75	75	* 127 dB Dynamic Range RSSI.
76	76	* Automatic RF Sense and CAD with ultra-fast AFC.
77		-* Packet engine up to 256 bytes with CRC.
	95	+* Packet engine up to 256 bytes with CRC
78	78
79	79	== 1.3 Features ==
80	80
	99	+
81	81	* LoRaWAN Class A & Class C protocol (default Class C)
82		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	101	+* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
83	83	* AT Commands to change parameters
84	84	* Remote configure parameters via LoRa Downlink
85	85	* Firmware upgradable via program port
...	...	@@ -89,6 +89,7 @@
89	89
90	90	== 1.4 Applications ==
91	91
	111	+
92	92	* Smart Buildings & Home Automation
93	93	* Logistics and Supply Chain Management
94	94	* Smart Metering
...	...	@@ -98,16 +98,22 @@
98	98
99	99	== 1.5 Firmware Change log ==
100	100
	121	+
101	101	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
102	102
103	103
104	104	== 1.6 Hardware Change log ==
105	105
	127	+
106	106	(((
107	107	(((
	130	+(((
108	108	v1.2: Add External Interrupt Pin.
	132	+)))
109	109
	134	+(((
110	110	v1.0: Release
	136	+)))
111	111
112	112
113	113	)))
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115	115
116	116	= 2. Power ON Device =
117	117
	144	+
118	118	(((
119	119	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
120	120
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125	125	Once there is power, the RS485-LN will be on.
126	126	)))
127	127
128		-[[image:1653268091319-405.png]]
	155	+(% aria-label="1653268091319-405.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268091319-405.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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130	130
131	131	)))
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134	134
135	135	== 3.1 How it works? ==
136	136
	164	+
137	137	(((
	166	+(((
138	138	The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
	168	+)))
139	139
140	140
141	141	)))
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142	142
143	143	== 3.2 Example to join LoRaWAN network ==
144	144
	175	+
145	145	Here shows an example for how to join the TTN V3 Network. Below is the network structure, we use [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway here.
146	146
147		-[[image:1653268155545-638.png||height="334" width="724"]]
148	148
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149	149
	181	+
150	150	(((
151	151	(((
152	152	The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
...	...	@@ -154,16 +154,21 @@
154	154
155	155	(((
156	156	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
	189	+
	190	+
157	157	)))
158	158
159		-[[image:1653268227651-549.png||height="592" width="720"]]
	193	+(% aria-label="1653268227651-549.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268227651-549.png||data-widget="image" height="592" width="720"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
160	160
	195	+
161	161	(((
162		-The LG308 is already set to connect to [[TTN V3 network >>path:eu1.cloud.thethings.network/]]. So what we need to now is only configure the TTN V3:
	197	+The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
	198	+
	199	+
163	163	)))
164	164
165	165	(((
166		-**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
	203	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
167	167	)))
168	168
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171	171	)))
172	172	)))
173	173
174		-[[image:1652953462722-299.png]]
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175	175
	213	+
176	176	(((
177	177	(((
178	178	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
	217	+
	218	+
179	179	)))
180	180
181	181	(((
182		-Add APP EUI in the application.
	222	+**Add APP EUI in the application.**
183	183	)))
184	184	)))
185	185
186		-[[image:image-20220519174512-1.png]]
	226	+(% aria-label="image-20220519174512-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
187	187
188		-[[image:image-20220519174512-2.png||height="323" width="720"]]
	228	+(% aria-label="image-20220519174512-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-2.png||data-widget="image" height="323" width="720"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
189	189
190		-[[image:image-20220519174512-3.png||height="556" width="724"]]
	230	+(% aria-label="image-20220519174512-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-3.png||data-widget="image" height="556" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
191	191
192		-[[image:image-20220519174512-4.png]]
	232	+(% aria-label="image-20220519174512-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
193	193
	234	+
	235	+(% title="Click and drag to resize" %)​
	236	+
194	194	You can also choose to create the device manually.
195	195
196		-[[image:1652953542269-423.png||height="710" width="723"]]
	239	+(% aria-label="1652953542269-423.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953542269-423.png||data-widget="image" height="710" width="723"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
197	197
198		-Add APP KEY and DEV EUI
199	199
200		-[[image:1652953553383-907.png||height="514" width="724"]]
201	201
	243	+**Add APP KEY and DEV EUI**
202	202
	245	+(% aria-label="1652953553383-907.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953553383-907.png||data-widget="image" height="514" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	246	+
	247	+
203	203	(((
204		-**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
	249	+(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
	250	+
	251	+
205	205	)))
206	206
207		-[[image:1652953568895-172.png||height="232" width="724"]]
	254	+(% aria-label="1652953568895-172.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953568895-172.png||data-widget="image" height="232" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
208	208
209	209
210		-== 3.3 Configure Commands to read data ==
	257	+== 3.3 Configure Device to Read RS485 Sensors ==
211	211
	259	+
	260	+There are plenty of RS485 and TTL level devices in the market and each device has different commands to read the valid data. To support these devices in most flexible, RS485-LN supports flexible command set. User can use [[Dragino RS485 Tool>>url:https://www.dropbox.com/sh/us9qecn39fwt8n1/AABREdqUCzEmJMRrfuWuXasoa?dl=0]],  [[AT Commands or LoRaWAN Downlink>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-LB_Waterproof_RS485UART_to_LoRaWAN_Converter/#H3.5ConfigureRS485-LBviaATorDownlink]] Command to configure how RS485-LN should read the sensor and how to handle the return from RS485 or TTL sensors.
	261	+
	262	+
212	212	(((
213	213	(((
214		-There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
	265	+(((
	266	+(% style="color:red" %)**Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1**
215	215	)))
216	216
217		-(((
218		-(% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
219	219
220		-
	270	+=== 3.3.1 Method 1 ~-~- via RS485 Configure Tool ===
	271	+
	272	+
	273	+Use the RS485 Configure tool is the recommand method. Please see the instruction of how to use the tool:
	274	+
	275	+* **[[RS485 Configure Tool Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/RS485_Configure_Tool/]]**
	276	+
	277	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-LB_Waterproof_RS485UART_to_LoRaWAN_Converter/WebHome/image-20231127144411-1.png?width=494&height=368&rev=1.1||alt="image-20231127144411-1.png" height="368" width="494"]]
	278	+
	279	+
	280	+=== 3.3.2  Method 2 ~-~- via AT Commands ===
221	221	)))
222	222	)))
223	223
224		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	284	+==== 3.3.2.1 Configure UART settings for RS485 communication ====
225	225
226		-To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
227	227
228		-(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
229		-|(% style="width:128px" %)(((
	287	+To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. The related commands for UART settings are:
	288	+
	289	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	290	+|=(% style="width: 126px; background-color:#4F81BD;color:white" %)(((
230	230	**AT Commands**
231		-)))|(% style="width:305px" %)(((
	292	+)))|=(% style="width: 187px; background-color:#4F81BD;color:white" %)(((
232	232	**Description**
233		-)))|(% style="width:346px" %)(((
	294	+)))|=(% style="width: 197px;background-color:#4F81BD;color:white" %)(((
234	234	**Example**
235	235	)))
236		-|(% style="width:128px" %)(((
	297	+|(% style="width:126px" %)(((
	298	+
	299	+
	300	+(((
237	237	AT+BAUDR
238		-)))|(% style="width:305px" %)(((
	302	+)))
	303	+)))|(% style="width:177px" %)(((
239	239	Set the baud rate (for RS485 connection). Default Value is: 9600.
240		-)))|(% style="width:346px" %)(((
	305	+)))|(% style="width:193px" %)(((
241	241	(((
242	242	AT+BAUDR=9600
243	243	)))
244	244
245	245	(((
246		-Options: (1200,2400,4800,14400,19200,115200)
	311	+Options: (1200,2400,4800,
	312	+14400,19200,115200)
247	247	)))
248	248	)))
249		-|(% style="width:128px" %)(((
	315	+|(% style="width:126px" %)(((
250	250	AT+PARITY
251		-)))|(% style="width:305px" %)(((
	317	+)))|(% style="width:177px" %)(((
252	252	Set UART parity (for RS485 connection)
253		-)))|(% style="width:346px" %)(((
	319	+)))|(% style="width:193px" %)(((
254	254	(((
255	255	AT+PARITY=0
256	256	)))
257	257
258	258	(((
259		-Option: 0: no parity, 1: odd parity, 2: even parity
	325	+Option: 0: no parity,
	326	+1: odd parity,
	327	+2: even parity
260	260	)))
261	261	)))
262		-|(% style="width:128px" %)(((
	330	+|(% style="width:126px" %)(((
263	263	AT+STOPBIT
264		-)))|(% style="width:305px" %)(((
	332	+)))|(% style="width:177px" %)(((
265	265	(((
266	266	Set serial stopbit (for RS485 connection)
267	267	)))
268		-
	336	+)))|(% style="width:193px" %)(((
269	269	(((
270		-
271		-)))
272		-)))|(% style="width:346px" %)(((
273		-(((
274	274	AT+STOPBIT=0 for 1bit
275	275	)))
276	276
...	...	@@ -283,26 +283,32 @@
283	283	)))
284	284	)))
285	285
286		-=== 3.3.2 Configure sensors ===
	350	+=== 3.3.3 Configure sensors ===
287	287
	352	+
288	288	(((
289		-(((
290		-Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won’t run during each sampling.
	354	+Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
291	291	)))
292		-)))
293	293
294		-(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
295		-|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
296		-|AT+CFGDEV|(% style="width:418px" %)(((
	357	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	358	+|=(% style="width: 122px; background-color:#4F81BD;color:white" %)**AT Commands**|=(% style="width: 198px; background-color:#4F81BD;color:white" %)**Description**|=(% style="width: 190px;background-color:#4F81BD;color:white" %)**Example**
	359	+|(% style="width:122px" %)AT+CFGDEV|(% style="width:196px" %)(((
	360	+(((
297	297	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	362	+)))
298	298
	364	+(((
299	299	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	366	+)))
300	300
	368	+(((
301	301	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
302		-)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	370	+)))
	371	+)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
303	303
304		-=== 3.3.3 Configure read commands for each sampling ===
	373	+=== 3.3.4 Configure read commands for each sampling ===
305	305
	375	+
306	306	(((
307	307	During each sampling, we need confirm what commands we need to send to the RS485 sensors to read data. After the RS485 sensors send back the value, it normally include some bytes and we only need a few from them for a shorten payload.
308	308
...	...	@@ -313,8 +313,9 @@
313	313	During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
314	314
315	315
316		-**Each RS485 commands include two parts:**
	386	+(% style="color:#037691" %)**Each RS485 commands include two parts:**
317	317
	388	+
318	318	~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar.
319	319
320	320	2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar.
...	...	@@ -324,15 +324,14 @@
324	324
325	325	After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
326	326
327		-
328	328	Below are examples for the how above AT Commands works.
329	329
330	330
331		-**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
	401	+(% style="color:#037691" %)**AT+COMMANDx **(%%)**: **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
332	332
333		-(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	403	+(% border="1" style="background-color:#f2f2f2; width:499px" %)
334	334	|(% style="width:496px" %)(((
335		-**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	405	+**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
336	336
337	337	**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
338	338
...	...	@@ -344,10 +344,24 @@
344	344	In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
345	345
346	346
347		-**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
	417	+If a single command exceeds 14 bytes, you can use the command splicing function.
348	348
349		-(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
350		-|(% style="width:722px" %)(((
	419	+When AT+CMDDLx=1, the commands of AT+COMMANDx and AT+COMMAND(x+1) will be merged.
	420	+
	421	+
	422	+**Examples:** To send 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F data it should be configured:
	423	+
	424	+ AT+COMMAND1=00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D,0
	425	+
	426	+ AT+COMMAND1=1
	427	+
	428	+ AT+COMMAND2=0E 0F,0
	429	+
	430	+
	431	+(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
	432	+
	433	+(% border="1" style="background-color:#f2f2f2; width:510px" %)
	434	+|(% style="width:510px" %)(((
351	351	**AT+DATACUTx=a,b,c**
352	352
353	353	* **a: length for the return of AT+COMMAND**
...	...	@@ -357,25 +357,29 @@
357	357
358	358	**Examples:**
359	359
360		-* Grab bytes:
361	361
362		-[[image:image-20220602153621-1.png]]
	445	+* (% style="color:#037691" %)**Grab bytes**
363	363
	447	+(% aria-label="image-20220602153621-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
364	364
365		-* Grab a section.
366	366
367		-[[image:image-20220602153621-2.png]]
368	368
	451	+* (% style="color:#037691" %)**Grab a section**
369	369
370		-* Grab different sections.
	453	+(% aria-label="image-20220602153621-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-2.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
371	371
372		-[[image:image-20220602153621-3.png]]
373	373
	456	+
	457	+* (% style="color:#037691" %)**Grab different sections**
	458	+
	459	+(% aria-label="image-20220602153621-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-3.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	460	+
374	374
375	375	)))
376	376
377		-=== 3.3.4 Compose the uplink payload ===
	464	+=== 3.3.5 Compose the uplink payload ===
378	378
	466	+
379	379	(((
380	380	Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
381	381
...	...	@@ -393,18 +393,16 @@
393	393	)))
394	394
395	395	(((
396		-Final Payload is
	484	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
397	397	)))
398	398
399	399	(((
400		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
401		-)))
402		-
403		-(((
404	404	Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	489	+
	490	+
405	405	)))
406	406
407		-[[image:1653269759169-150.png||height="513" width="716"]]
	493	+[[image:image-20220929111027-1.png||height="509" width="685"]](% title="Click and drag to resize" %)​
408	408
409	409
410	410	(% style="color:#037691" %)**Examples: AT+DATAUP=1**
...	...	@@ -412,691 +412,1368 @@
412	412
413	413	Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
414	414
415		-Final Payload is
	501	+Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
416	416
417		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
418	418
419		-1. Battery Info (2 bytes): Battery voltage
420		-1. PAYVER (1 byte): Defined by AT+PAYVER
421		-1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
422		-1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
423		-1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
	504	+~1. PAYVER: Defined by AT+PAYVER
424	424
425		-[[image:1653269916228-732.png||height="433" width="711"]]
	506	+2. PAYLOAD COUNT: Total how many uplinks of this sampling.
426	426
	508	+3. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
427	427
428		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
	510	+4. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
429	429
430		-DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
431	431
432		-DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
	513	+(% aria-label="image-20220602155039-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602155039-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
433	433
434		-DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
435	435
436		-Below are the uplink payloads:
	516	+So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
437	437
438		-[[image:1653270130359-810.png]]
	518	+DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
439	439
	520	+DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
440	440
441		-(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
	522	+DATA3=the rest of Valid value of RETURN10= **30**
442	442
443		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
444	444
445		- * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	525	+(% style="color:red" %)**Notice: In firmware v1.3, the Max bytes has been changed according to the max bytes in different Frequency Bands for lowest SF. As below:**
446	446
447		- * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
448	448
449		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
	528	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
450	450
451		-=== 3.3.5 Uplink on demand ===
	530	+ * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
452	452
453		-Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
	532	+ * For US915 band, max 11 bytes for each uplink.
454	454
455		-Downlink control command:
	534	+ ~* For all other bands: max 51 bytes for each uplink.
456	456
457		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
458	458
459		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
	537	+(% style="color:red" %)** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
460	460
	539	+(% style="color:red" %)** When AT+DATAUP=1 and AT+ADR=0, the maximum number of bytes of each payload is determined by the DR value. (Since v1.4.0)**
461	461
462	462
463		-1.
464		-11.
465		-111. Uplink on Interrupt
466	466
467		-Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
	543	+Below are the uplink payloads:
468	468
469		-AT+INTMOD=0  Disable Interrupt
470	470
471		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	546	+(% aria-label="1654157178836-407.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157178836-407.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
472	472
473		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
474	474
475		-AT+INTMOD=3  Interrupt trigger by rising edge.
	549	+=== 3.3.6 Uplink on demand ===
476	476
477	477
478		-1.
479		-11. Uplink Payload
	552	+Except uplink periodically, RS485-LN is able to uplink on demand. The server send downlink command to RS485-LN and RS485 will uplink data base on the command.
480	480
481		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
482		-|Value|(((
483		-Battery(mV)
	554	+(% style="color:blue" %)**Downlink control command:**
484	484
485		-&
	556	+(% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
486	486
487		-Interrupt _Flag
488		-)))|(((
489		-PAYLOAD_VER
	558	+(% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
490	490
491		-
492		-)))|If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.
493	493
494		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	561	+=== 3.3.7 Uplink on Interrupt ===
495	495
496	496
497		-function Decoder(bytes, port) {
	564	+RS485-LN support external Interrupt uplink since hardware v1.2 release.
498	498
499		-~/~/Payload Formats of RS485-BL Deceive
	566	+(% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
500	500
501		-return {
	568	+Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
502	502
503		- ~/~/Battery,units:V
504	504
505		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
	571	+== 3.4 Uplink Payload ==
506	506
507		- ~/~/GPIO_EXTI
508	508
509		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
	574	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	575	+|(% style="background-color:#4f81bd; color:white; width:70px" %)(((
	576	+**Size(bytes)**
	577	+)))|(% style="background-color:#4f81bd; color:white; width:80px" %)**1**|(% style="background-color:#4f81bd; color:white; width:360px" %)(((
	578	+**Length depends on the return from the commands**
	579	+)))
	580	+|(% style="width:90px" %)(((
	581	+Value
	582	+)))|(% style="width:114px" %)(((
	583	+PAYLOAD_VER
	584	+)))|(% style="width:353px" %)(((
	585	+If the valid payload is too long and exceed the maximum
510	510
511		- ~/~/payload of version
	587	+support payload length in server, server will show payload not
512	512
513		- Pay_ver:bytes[2],
	589	+provided in the LoRaWAN server.
	590	+)))
514	514
515		- };
	592	+(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](%%)Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
516	516
517		- }
518	518
	595	+== 3.5 Configure RS485-LN via AT or Downlink ==
519	519
520	520
	598	+(((
	599	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
	600	+)))
521	521
	602	+(((
	603	+There are two kinds of Commands:
	604	+)))
522	522
	606	+* (((
	607	+(% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
	608	+)))
523	523
	610	+* (((
	611	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	612	+)))
524	524
525		-TTN V3 uplink screen shot.
	614	+(((
	615	+
	616	+)))
526	526
527		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
528	528
529		-1.
530		-11. Configure RS485-BL via AT or Downlink
	619	+=== 3.5.1 Common Commands ===
531	531
532		-User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
533	533
534		-There are two kinds of Commands:
	622	+They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
535	535
536		-* **Common Commands**: They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
537	537
538		-* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
	625	+=== 3.5.2 Downlink Response(Since firmware v1.4) ===
539	539
540		-1.
541		-11.
542		-111. Common Commands:
543	543
544		-They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
	628	+Response feature is added to the server's downlink, a special package with a FPort of 200 will be uploaded immediately after receiving the data sent by the server.
545	545
546	546
547		-1.
548		-11.
549		-111. Sensor related commands:
	631	+(% aria-label="image-20220602163333-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602163333-5.png||data-widget="image" height="263" width="1160"]]
550	550
551		-==== Choose Device Type (RS485 or TTL) ====
	633	+(% title="Click and drag to resize" %)​
552	552
553		-RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
	635	+The first byte of this package represents whether the configuration is successful, 00 represents failure, 01 represents success. Except for the first byte, the other is the previous downlink. (All commands except A8 type commands are applicable)
554	554
555		-* AT Command
556	556
557		-**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
	638	+=== 3.5.3 Sensor related commands ===
558	558
559		-**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
560	560
561	561
562		-* Downlink Payload
	642	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
563	563
564		-**0A aa**     à same as AT+MOD=aa
565	565
	645	+(((
	646	+This command is used to configure the RS485 devices; they won't be used during sampling. Max Length of AT+CFGDEV is **40 bytes**.
	647	+)))
566	566
	649	+(((
	650	+* (% style="color:#037691" %)**AT Command**
567	567
568		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
	652	+(((
	653	+(% style="color:#4472c4" %)** AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**  (%%) m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
	654	+)))
	655	+)))
569	569
570		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
	657	+(((
	658	+
	659	+)))
571	571
572		-* AT Command
	661	+* (((
	662	+(% style="color:#037691" %)**Downlink Payload**
	663	+)))
573	573
574		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	665	+(((
	666	+Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
	667	+)))
575	575
576		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	669	+(((
	670	+Where:
	671	+)))
577	577
	673	+* (((
	674	+MM: 1: add CRC-16/MODBUS ; 0: no CRC
	675	+)))
	676	+* (((
	677	+NN: The length of RS485 command
	678	+)))
	679	+* (((
	680	+XX XX XX XX: RS485 command total NN bytes
	681	+)))
	682	+* (((
	683	+(((
	684	+YY: How many bytes will be uplink from the return of this RS485 command,
	685	+)))
578	578
	687	+* (((
	688	+if YY=0, RS485-LN will execute the downlink command without uplink;
	689	+)))
	690	+* (((
	691	+if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	692	+)))
	693	+* (((
	694	+if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	695	+)))
	696	+)))
579	579
580		-* Downlink Payload
	698	+(((
	699	+
581	581
582		-Format: A8 MM NN XX XX XX XX YY
	701	+(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
	702	+)))
583	583
584		-Where:
585		-
586		-* MM: 1: add CRC-16/MODBUS ; 0: no CRC
587		-* NN: The length of RS485 command
588		-* XX XX XX XX: RS485 command total NN bytes
589		-* YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
590		-
591		-**Example 1:**
592		-
	704	+(((
593	593	To connect a Modbus Alarm with below commands.
	706	+)))
594	594
595		-* The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
	708	+* (((
	709	+The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
	710	+)))
596	596
597		-* The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
	712	+* (((
	713	+The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
	714	+)))
598	598
	716	+(((
	717	+
	718	+
599	599	So if user want to use downlink command to control to RS485 Alarm, he can use:
	720	+)))
600	600
601		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
	722	+(((
	723	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
	724	+)))
602	602
603		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
	726	+(((
	727	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
	728	+)))
604	604
	730	+(((
605	605	A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
	732	+)))
606	606
	734	+(((
	735	+
	736	+)))
607	607
608		-**Example 2:**
	738	+(((
	739	+(% style="color:blue" %)**Example 2:**  (%%)
	740	+)))
609	609
	742	+(((
610	610	Check TTL Sensor return:
	744	+)))
611	611
612		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
	746	+(((
	747	+(((
	748	+[[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/1654132684752-193.png?rev=1.1||alt="1654132684752-193.png"]](% title="Click and drag to resize" %)​
	749	+)))
	750	+)))
613	613
614	614
615	615
	754	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
616	616
617		-==== Set Payload version ====
618	618
619		-This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
	757	+(((
	758	+This is the first byte of the uplink payload. RS485-LN can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
	759	+)))
620	620
621		-* AT Command:
	761	+(((
	762	+* (% style="color:#037691" %)**AT Command:**
622	622
623		-AT+PAYVER: Set PAYVER field = 1
	764	+(% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
624	624
	766	+
	767	+)))
625	625
626		-* Downlink Payload:
	769	+* (((
	770	+(% style="color:#037691" %)**Downlink Payload:**
	771	+)))
627	627
628		-0xAE 01   à Set PAYVER field =  0x01
	773	+(((
	774	+(% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
	775	+)))
629	629
630		-0xAE 0F   à Set PAYVER field =  0x0F
	777	+(((
	778	+(% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
	779	+)))
631	631
632	632
633		-==== Set RS485 Sampling Commands ====
	782	+**1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)**
634	634
635		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
636	636
637		-These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>path:#polling_485]].
	785	+[[image:image-20220824145428-2.png||height="168" width="1300"]]
638	638
639	639
640		-* AT Command:
641	641
642		-AT+COMMANDx: Configure RS485 read command to sensor.
	789	+**2 )  if the data intercepted by AT+DATACUT or AT+MBFUN is empty, it will display NULL, and the payload will be filled with n FFs.**
643	643
644		-AT+DATACUTx: Configure how to handle return from RS485 devices.
645	645
646		-AT+SEARCHx: Configure search command
	792	+[[image:image-20220824145428-3.png||height="308" width="1200"]]
647	647
648	648
649		-* Downlink Payload:
650	650
651		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	796	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
652	652
653		-Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
654	654
655		-Format: AF MM NN LL XX XX XX XX YY
	799	+(((
	800	+AT+COMMANDx or AT+DATACUTx
	801	+)))
656	656
657		-Where:
	803	+(((
	804	+These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
	805	+)))
658	658
659		-* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
660		-* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
661		-* LL: The length of AT+COMMAND or AT+DATACUT command
662		-* XX XX XX XX: AT+COMMAND or AT+DATACUT command
663		-* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
	807	+(((
	808	+
	809	+)))
664	664
665		-Example:
	811	+* (((
	812	+(% style="color:#037691" %)**AT Command:**
	813	+)))
666	666
667		-**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
	815	+(% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
668	668
669		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
	817	+(% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
670	670
671		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
672	672
	820	+* (((
	821	+(% style="color:#037691" %)**Downlink Payload:**
	822	+)))
673	673
674		-0xAB downlink command can be used for set AT+SEARCHx
	824	+(((
	825	+(% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
675	675
676		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
	827	+
	828	+)))
677	677
678		-* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
679		-* AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
	830	+(((
	831	+(% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
680	680
681		-**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
	833	+
	834	+)))
682	682
	836	+(((
	837	+Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
	838	+)))
683	683
684		-==== Fast command to handle MODBUS device ====
	840	+(((
	841	+Where:
	842	+)))
685	685
686		-AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
	844	+* (((
	845	+MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	846	+)))
	847	+* (((
	848	+NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	849	+)))
	850	+* (((
	851	+LL:  The length of AT+COMMAND or AT+DATACUT command
	852	+)))
	853	+* (((
	854	+XX XX XX XX: AT+COMMAND or AT+DATACUT command
	855	+)))
	856	+* (((
	857	+YY:  If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
	858	+)))
687	687
	860	+(((
	861	+
	862	+
	863	+**Example:**
	864	+)))
	865	+
	866	+(((
	867	+(% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
	868	+)))
	869	+
	870	+(((
	871	+(% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
	872	+)))
	873	+
	874	+(((
	875	+(% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
	876	+)))
	877	+
	878	+
	879	+
	880	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
	881	+
	882	+
	883	+(((
	884	+(% style="color:#4472c4" %)** AT+MBFUN**(%%) is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
	885	+)))
	886	+
	887	+(((
688	688	This command is valid since v1.3 firmware version
	889	+)))
689	689
	891	+(((
	892	+AT+MBFUN can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
	893	+)))
690	690
691		-AT+MBFUN has only two value:
	895	+(((
	896	+
	897	+)))
692	692
693		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
	899	+(((
	900	+**Example:**
	901	+)))
694	694
695		-AT+MBFUN=1, device can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
	903	+* (((
	904	+AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
	905	+)))
	906	+* (((
	907	+AT+COMMAND1= 01 03 00 10 00 08,1  ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
	908	+)))
	909	+* (((
	910	+AT+COMMAND2= 01 02 00 40 00 10,1  ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
696	696
697		-* AT+MBFUN=0: Disable Modbus fast reading.
	912	+
	913	+)))
698	698
699		-Example:
	915	+(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]]
700	700
701		-* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
702		-* AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
703		-* AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
	917	+(% title="Click and drag to resize" %)​
704	704
705		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
	919	+(% aria-label="image-20220602165351-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-7.png||data-widget="image"]](% title="Click and drag to resize" %)​
706	706
	921	+* (((
	922	+(% style="color:#037691" %)**Downlink Command:**
	923	+)))
707	707
708		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
	925	+**~ (% style="color:#4472c4" %)A9 aa(%%)** ~-~-> Same as AT+MBFUN=aa
709	709
710	710
711		-* Downlink Commands:
	928	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
712	712
713		-A9 aa -à Same as AT+MBFUN=aa
714	714
	931	+(((
	932	+Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action.
	933	+)))
715	715
716		-==== RS485 command timeout ====
	935	+(((
	936	+Default value: 0, range:  0 ~~ 65 seconds
	937	+)))
717	717
718		-Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action.
	939	+(((
	940	+* (% style="color:#037691" %)** AT Command:**
719	719
720		-Default value: 0, range:  0 ~~ 5 seconds
	942	+(% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
	943	+)))
721	721
	945	+(((
	946	+
722	722
723		-* AT Command:
	948	+**Example:**
	949	+)))
724	724
725		-AT+CMDDLaa=hex(bb cc)
	951	+(((
	952	+(% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
	953	+)))
726	726
727		-Example:
	955	+(((
	956	+
	957	+)))
728	728
729		-**AT+CMDDL1=1000** to send the open time to 1000ms
	959	+* (((
	960	+(% style="color:#037691" %)** Downlink Payload:**
	961	+)))
730	730
	963	+(((
	964	+(% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex (bb cc)
	965	+)))
731	731
732		-* Downlink Payload:
	967	+(((
	968	+
733	733
734		-0x AA aa bb cc
	970	+**Example:**
	971	+)))
735	735
736		-Same as: AT+CMDDLaa=hex(bb cc)
	973	+(((
	974	+**0xAA 01 03 E8**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	975	+)))
737	737
738		- Example:
739	739
740		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
741	741
	979	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
742	742
743		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
744	744
	982	+(((
745	745	Define to use one uplink or multiple uplinks for the sampling.
	984	+)))
746	746
747		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
	986	+(((
	987	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
748	748
749		-* AT Command:
	989	+
	990	+)))
750	750
751		-AT+DATAUP=0
	992	+(((
	993	+* (% style="color:#037691" %)** AT Command:**
752	752
753		-AT+DATAUP=1
	995	+(% style="color:#4472c4" %)** AT+DATAUP=0**
754	754
	997	+(% style="color:#4472c4" %)** AT+DATAUP=1**
755	755
756		-* Downlink Payload:
	999	+
	1000	+)))
757	757
758		-0xAD 00   à Same as AT+DATAUP=0
	1002	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
759	759
760		-0xAD 01   à Same as AT+DATAUP=1
	1004	+Each uplink is sent to the server at 20-second intervals when segmented.
761	761
762	762
763		-==== Manually trigger an Uplink ====
	1007	+* (((
	1008	+(% style="color:#037691" %)** Downlink Payload:**
	1009	+)))
764	764
	1011	+(% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
	1012	+
	1013	+(% style="color:#4472c4" %)** 0xAD 01**  (%%) **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
	1014	+
	1015	+
	1016	+(Since firmware v1.4.0)
	1017	+
	1018	+* (((
	1019	+(% style="color:#037691" %)** AT Command:**
	1020	+)))
	1021	+
	1022	+(% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
	1023	+
	1024	+
	1025	+* (((
	1026	+(% style="color:#037691" %)** Downlink Payload:**
	1027	+)))
	1028	+
	1029	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
	1030	+
	1031	+Each uplink is sent to the server at 20-second intervals when segmented.
	1032	+
	1033	+
	1034	+==== (% style="color:blue" %)**Cut data separation processing(Since Version 1.4.2)**(%%) ====
	1035	+
	1036	+
	1037	+AT+NEWLINE command, which only takes effect when AT+DATAUP=1 or AT+DATAUP=1, timeout.
	1038	+
	1039	+When not set, each part of AT+DATAUP is sent according to the maximum number of bytes of DR.
	1040	+
	1041	+When setting, each part of AT+DATAUP is sent according to the value set by AT+NEWLINE.
	1042	+
	1043	+
	1044	+* (((
	1045	+(% style="color:#037691" %)** AT Command:**
	1046	+)))
	1047	+
	1048	+(% style="color:#4472c4" %)//**AT+NEWLINE=ALL**//(%%)//   //The data cut out by each AT+COMMANDx command is sent separately as an uplink.
	1049	+
	1050	+(% style="color:#4472c4" %)//**AT+NEWLINE=ALL**//(%%)//   equal：  (% style="color:#4472c4" %)**AT+NEWLINE=1+2+3+4+5+6+7+8+9+10+11+12+13+14+15**//
	1051	+
	1052	+
	1053	+(% style="color:#4472c4" %)//**AT+NEWLINE=a+b+c**//(%%)//  //The data returned by all commands is divided into three parts, COMMAND(1~~a) is the first part, COMMAND(a+1~~b) is the second part,COMMAND(b+1~~c) is the third part.
	1054	+
	1055	+
	1056	+(% style="color:#4472c4" %)//**AT+NEWLINE=NULL**//(%%)//  //Turn off the functionality of this AT command.
	1057	+
	1058	+
	1059	+* (((
	1060	+(% style="color:#037691" %)** Downlink Payload:**
	1061	+)))
	1062	+
	1063	+//AT+NEWLINE=ALL  ~-~-->  (% style="color:#4472c4" %)**0xAC 01**//
	1064	+
	1065	+// AT+NEWLINE= NULL  ~-~-->  (% style="color:#4472c4" %)**0xAC 00**//
	1066	+
	1067	+//AT+NEWLINE= a+b+c   ~-~-->  (% style="color:#4472c4" %)**0xAC number of bytes a b c**//
	1068	+
	1069	+//AT+NEWLINE= 1+5+15 ~-~-->  (% style="color:#4472c4" %)**0xAC 03 01 05 0F**//
	1070	+
	1071	+
	1072	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
	1073	+
	1074	+
	1075	+(((
765	765	Ask device to send an uplink immediately.
	1077	+)))
766	766
767		-* Downlink Payload:
	1079	+* (((
	1080	+(% style="color:#037691" %)** AT Command:**
	1081	+)))
768	768
769		-0x08 FF, RS485-BL will immediately send an uplink.
	1083	+(((
	1084	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1085	+)))
770	770
	1087	+(((
	1088	+
	1089	+)))
771	771
772		-==== Clear RS485 Command ====
	1091	+* (((
	1092	+(% style="color:#037691" %)** Downlink Payload:**
	1093	+)))
773	773
	1095	+(((
	1096	+(% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
	1097	+)))
	1098	+
	1099	+
	1100	+
	1101	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
	1102	+
	1103	+
	1104	+(((
774	774	The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
775	775
	1107	+
	1108	+)))
776	776
777		-* AT Command:
	1110	+* (((
	1111	+(% style="color:#037691" %)** AT Command:**
	1112	+)))
778	778
779		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
	1114	+(((
	1115	+(% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
	1116	+)))
780	780
	1118	+(((
	1119	+
	1120	+
781	781	Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1122	+)))
782	782
	1124	+(((
783	783	Example screen shot after clear all RS485 commands.
	1126	+)))
784	784
	1128	+(((
	1129	+
	1130	+)))
785	785
786		-
	1132	+(((
787	787	The uplink screen shot is:
	1134	+)))
788	788
789		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1136	+(% aria-label="1654160691922-496.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654160691922-496.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
790	790
791	791
792		-* Downlink Payload:
	1139	+* (((
	1140	+(% style="color:#037691" %)** Downlink Payload:**
	1141	+)))
793	793
794		-0x09 aa bb same as AT+CMDEAR=aa,bb
	1143	+(((
	1144	+(% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
	1145	+)))
795	795
796	796
797		-==== Set Serial Communication Parameters ====
798	798
	1149	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
	1150	+
	1151	+
	1152	+(((
799	799	Set the Rs485 serial communication parameters:
	1154	+)))
800	800
801		-* AT Command:
	1156	+(((
	1157	+(% style="color:#037691" %)**AT Command:**
	1158	+)))
802	802
803		-Set Baud Rate:
	1160	+(((
	1161	+* Set Baud Rate
	1162	+)))
804	804
805		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1164	+(% style="color:#4472c4" %)** AT+BAUDR=9600** (%%) ~/~/  Options: (200~~115200)  When using low baud rate or receiving multiple bytes, you need to use AT+CMDDL to increase the receive timeout (the default receive timeout is 400ms), otherwise data will be lost
806	806
807	807
808		-Set UART parity
	1167	+(((
	1168	+* Set UART Parity
	1169	+)))
809	809
810		-AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1171	+(% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
811	811
812	812
813		-Set STOPBIT
	1174	+(((
	1175	+* Set STOPBIT
	1176	+)))
814	814
815		-AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1178	+(% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
816	816
817	817
818		-* Downlink Payload:
	1181	+(((
	1182	+(% style="color:#037691" %)**Downlink Payload:**
	1183	+)))
819	819
820		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
	1185	+(((
	1186	+(% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
	1187	+)))
821	821
822		-Example:
	1189	+(((
	1190	+**Example:**
	1191	+)))
823	823
824		-* A7 01 00 60   same as AT+BAUDR=9600
825		-* A7 01 04 80  same as AT+BAUDR=115200
	1193	+* (((
	1194	+A7 01 00 60  same as AT+BAUDR=9600
	1195	+)))
	1196	+* (((
	1197	+A7 01 04 80  same as AT+BAUDR=115200
	1198	+)))
826	826
827		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1200	+(((
	1201	+* A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1202	+)))
828	828
829		-A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1204	+(((
	1205	+* A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1206	+)))
830	830
831	831
832		-==== Control output power duration ====
833	833
834		-User can set the output power duration before each sampling.
835	835
836		-* AT Command:
	1211	+==== (% style="color:blue" %)**Configure Databit (Since Version 1.4.0)**(%%) ====
837	837
838		-Example:
839	839
840		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
	1214	+* (((
	1215	+(% style="color:#037691" %)** AT Command:**
	1216	+)))
841	841
842		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
	1218	+(% style="color:#4472c4" %)** AT+DATABIT=7    **(%%)~/~/ Set the data bits to 7
843	843
	1220	+(% style="color:#4472c4" %)** AT+DATABIT=8    **(%%)~/~/ Set the data bits to 8
844	844
845		-* LoRaWAN Downlink Command:
	1222	+* (((
	1223	+(% style="color:#037691" %)**Downlink Payload:**
	1224	+)))
846	846
847		-07 01 aa bb  Same as AT+5VT=(aa bb)
	1226	+(% style="color:#4472c4" %)** A7 04 07**(%%): Same as  AT+DATABIT=7
848	848
849		-07 02 aa bb  Same as AT+3V3T=(aa bb)
	1228	+(% style="color:#4472c4" %)** A7 04 08**(%%): Same as  AT+DATABIT=8
850	850
851	851
852	852
	1232	+==== (% style="color:blue" %)**Encrypted payload(Since Version 1.4.0)**(%%) ====
853	853
854		-1.
855		-11. Buttons
	1234	+(((
	1235	+
	1236	+)))
856	856
857		-|**Button**|**Feature**
858		-|**RST**|Reboot RS485-BL
	1238	+* (((
	1239	+(% style="color:#037691" %)** AT Command:**
	1240	+)))
859	859
860		-1.
861		-11. +3V3 Output
	1242	+(% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
862	862
863		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
	1244	+(% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
864	864
865		-The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling.
866	866
867	867
868		-The +3V3 output time can be controlled by AT Command.
	1248	+==== (% style="color:blue" %)**Get sensor value(Since Version 1.4.0)**(%%) ====
869	869
870		-**AT+3V3T=1000**
871	871
872		-Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
	1251	+* (((
	1252	+(% style="color:#037691" %)** AT Command:**
	1253	+)))
873	873
	1255	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
874	874
875		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
	1257	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
876	876
877	877
878		-1.
879		-11. +5V Output
880	880
881		-RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
	1261	+==== (% style="color:blue" %)**Resets the downlink packet count(Since Version 1.4.0)**(%%) ====
882	882
883		-The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling.
884	884
	1264	+* (((
	1265	+(% style="color:#037691" %)** AT Command:**
	1266	+)))
885	885
886		-The 5V output time can be controlled by AT Command.
	1268	+(% style="color:#4472c4" %)** AT+DISFCNTCHECK=0  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
887	887
888		-**AT+5VT=1000**
	1270	+(% style="color:#4472c4" %)** AT+DISFCNTCHECK=1  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
889	889
890		-Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
891	891
892	892
893		-By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
	1274	+==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches(Since Version 1.4.0)**(%%) ====
894	894
895	895
	1277	+* (((
	1278	+(% style="color:#037691" %)** AT Command:**
	1279	+)))
896	896
	1281	+ (% style="color:#4472c4" %)** AT+DISMACANS=0**  (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
897	897
898		-1.
899		-11. LEDs
	1283	+ (% style="color:#4472c4" %)** AT+DISMACANS=1**   (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
900	900
901		-|**LEDs**|**Feature**
902		-|**LED1**|Blink when device transmit a packet.
903	903
904		-1.
905		-11. Switch Jumper
	1286	+* (((
	1287	+(% style="color:#037691" %)** Downlink Payload:**
	1288	+)))
906	906
907		-|**Switch Jumper**|**Feature**
908		-|**SW1**|(((
909		-ISP position: Upgrade firmware via UART
	1290	+(% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
910	910
911		-Flash position: Configure device, check running status.
	1292	+
	1293	+
	1294	+==== (% style="color:blue" %)**Copy downlink to uplink (Since Version 1.4.0)**(%%) ====
	1295	+
	1296	+
	1297	+* (((
	1298	+(% style="color:#037691" %)** AT Command:**
912	912	)))
913		-|**SW2**|(((
914		-5V position: set to compatible with 5v I/O.
915	915
916		-3.3v position: set to compatible with 3.3v I/O.,
	1301	+(% style="color:#4472c4" %)** AT+RPL=5**  (%%) ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
	1302	+
	1303	+Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
	1304	+
	1305	+
	1306	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
	1307	+
	1308	+For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
	1309	+
	1310	+
	1311	+
	1312	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
	1313	+
	1314	+For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
	1315	+
	1316	+
	1317	+
	1318	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC(Since Version 1.4.0)**(%%) ====
	1319	+
	1320	+
	1321	+(((
	1322	+* (% style="color:#037691" %)**Downlink Payload:**
	1323	+
	1324	+(% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
917	917	)))
918	918
919		-+3.3V: is always ON
920	920
921		-+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
	1328	+Example：
922	922
923		-1. Case Study
924	924
925		-User can check this URL for some case studies.
	1331	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
926	926
927		-[[http:~~/~~/wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS>>url:http://wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS]]
928	928
929	929
	1335	+==== (% style="color:blue" %)** Monitor RS485 communication of other devices(Since Version 1.4.0)**(%%) ====
930	930
931	931
932		-1. Use AT Command
933		-11. Access AT Command
	1338	+* (((
	1339	+(% style="color:#037691" %)** AT Command:**
	1340	+)))
934	934
935		-RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
	1342	+(% style="color:#4472c4" %)**AT+RXMODE=1,10**    (%%) ~/~/ When the RS485-LN receives more than 10 bytes from the RS485, it immediately sends the uplink of the received data.
936	936
937		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
	1344	+(% style="color:#4472c4" %)**AT+RXMODE=2,500    ** (%%) ~/~/  RS485-LN uploads data as uplink from the first byte received by RS485 to the data received within 500ms after that.
938	938
	1346	+(% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
939	939
940		-In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
941	941
942		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
	1349	+* (((
	1350	+(% style="color:#037691" %)**Downlink Payload:**
	1351	+)))
943	943
	1353	+(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/ same as AT+RXMODE=aa,bb
944	944
	1355	+[[image:image-20220824144240-1.png]]
945	945
946		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
947	947
	1358	+== 3.6 Listening mode for RS485 network ==
948	948
949	949
950		-1.
951		-11. Common AT Command Sequence
952		-111. Multi-channel ABP mode (Use with SX1301/LG308)
	1361	+(((
	1362	+This feature support since firmware v1.4
	1363	+)))
953	953
954		-If device has not joined network yet:
	1365	+(((
	1366	+RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
955	955
956		-AT+FDR
	1368	+
	1369	+)))
957	957
958		-AT+NJM=0
	1371	+(% aria-label="image-20220602171200-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-8.png||data-widget="image" height="567" width="1007"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
959	959
960		-ATZ
	1373	+(% title="Click and drag to resize" %)​
961	961
	1375	+(((
	1376	+To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
	1377	+)))
962	962
	1379	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	1380	+|=(% style="width: 156px; background-color:#4F81BD;color:white" %)(((
	1381	+**Command example**
	1382	+)))|=(% style="width: 355px; background-color:#4F81BD;color:white" %)(((
	1383	+**Function**
	1384	+)))
	1385	+|(% style="width:156px" %)(((
	1386	+AT+RXMODE=1,10
	1387	+)))|(% style="width:352px" %)(((
	1388	+Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
	1389	+)))
	1390	+|(% style="width:156px" %)(((
	1391	+AT+RXMODE=2,500
	1392	+)))|(% style="width:352px" %)(((
	1393	+Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
	1394	+)))
	1395	+|(% style="width:156px" %)(((
	1396	+AT+RXMODE=0,0
	1397	+)))|(% style="width:352px" %)(((
	1398	+Disable listening mode. This is the default settings.
	1399	+)))
	1400	+|(% style="width:156px" %)(((
	1401	+
	1402	+)))|(% style="width:352px" %)(((
	1403	+A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
	1404	+)))
	1405	+
	1406	+(((
	1407	+
	1408	+
	1409	+(% style="color:#037691" %)**Downlink Command:**
	1410	+)))
	1411	+
	1412	+(((
	1413	+(% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
	1414	+)))
	1415	+
	1416	+(((
	1417	+
	1418	+)))
	1419	+
	1420	+(((
	1421	+**Example**:
	1422	+)))
	1423	+
	1424	+(((
	1425	+The RS485-LN is set to AT+RXMODE=2,1000
	1426	+)))
	1427	+
	1428	+(((
	1429	+There is a two Modbus commands in the RS485 network as below:
	1430	+)))
	1431	+
	1432	+(((
	1433	+The Modbus master send a command: (% style="background-color:#ffc000" %)**01 03 00 00 00 02 c4 0b**
	1434	+)))
	1435	+
	1436	+(((
	1437	+And Modbus slave reply with: (% style="background-color:green" %)**01 03 04 00 00 00 00 fa 33**
	1438	+)))
	1439	+
	1440	+(((
	1441	+RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)**01 03 00 00 00 02 c4 0b  **(% style="background-color:green" %)**01 03 04 00 00 00 00 fa 33**
	1442	+
	1443	+
	1444	+)))
	1445	+
	1446	+(((
	1447	+(% aria-label="image-20220602171200-9.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-9.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	1448	+)))
	1449	+
	1450	+
	1451	+
	1452	+(((
	1453	+(% style="color:red" %)**Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.**
	1454	+)))
	1455	+
	1456	+
	1457	+== 3.7 Buttons ==
	1458	+
	1459	+
	1460	+(% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
	1461	+|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**Button**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
	1462	+|(% style="width:50px" %)ACT|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
	1463	+|(% style="width:50px" %)RST|(% style="width:361px" %)Reboot RS485
	1464	+|(% style="width:50px" %)PRO|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
	1465	+
	1466	+== 3.8 LEDs ==
	1467	+
	1468	+
	1469	+(% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
	1470	+|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**LEDs**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
	1471	+|PWR|Always on if there is power
	1472	+|SYS|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
	1473	+
	1474	+= 4. Case Study =
	1475	+
	1476	+
	1477	+User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
	1478	+
	1479	+
	1480	+= 5. Use AT Command =
	1481	+
	1482	+== 5.1 Access AT Command ==
	1483	+
	1484	+
	1485	+(((
	1486	+RS485-LN supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-LN to use AT command, as below.
	1487	+
	1488	+
	1489	+)))
	1490	+
	1491	+(% aria-label="1654162355560-817.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162355560-817.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	1492	+
	1493	+
	1494	+
	1495	+(((
	1496	+In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-LN. The default password is 123456. Below is the output for reference:
	1497	+
	1498	+
	1499	+)))
	1500	+
	1501	+(% aria-label="1654162368066-342.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162368066-342.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	1502	+
	1503	+
	1504	+(((
	1505	+More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
	1506	+)))
	1507	+
	1508	+
	1509	+== 5.2 Common AT Command Sequence ==
	1510	+
	1511	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
	1512	+
	1513	+
	1514	+If device has not joined network yet:
	1515	+
	1516	+* (% style="color:#037691" %)**AT+FDR**
	1517	+* (% style="color:#037691" %)**AT+NJM=0**
	1518	+* (% style="color:#037691" %)**ATZ**
	1519	+
	1520	+(((
	1521	+
	1522	+
963	963	If device already joined network:
964	964
965		-AT+NJM=0
	1525	+* (% style="color:#037691" %)**AT+NJM=0**
	1526	+* (% style="color:#037691" %)**ATZ**
	1527	+)))
966	966
967		-ATZ
968	968
969		-1.
970		-11.
971		-111. Single-channel ABP mode (Use with LG01/LG02)
972	972
973		-AT+FDR   Reset Parameters to Factory Default, Keys Reserve
	1531	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
974	974
975		-AT+NJM=0 Set to ABP mode
976	976
977		-AT+ADR=0 Set the Adaptive Data Rate Off
	1534	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
978	978
979		-AT+DR=5  Set Data Rate
	1536	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
980	980
981		-AT+TDC=60000  Set transmit interval to 60 seconds
	1538	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
982	982
983		-AT+CHS=868400000 Set transmit frequency to 868.4Mhz
	1540	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
984	984
985		-AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
	1542	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
986	986
987		-AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
	1544	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
988	988
989		-AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
	1546	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
990	990
991		-ATZ          Reset MCU
	1548	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
992	992
993		-**Note:**
	1550	+(% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
994	994
995		-1. Make sure the device is set to ABP mode in the IoT Server.
996		-1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
997		-1. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
998		-1. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
	1552	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
999	999
1000		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1001	1001
	1555	+(% style="color:red" %)**Note:**
1002	1002
1003		-1. FAQ
1004		-11. How to upgrade the image?
	1557	+(((
	1558	+(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1559	+2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1560	+3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
	1561	+4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1005	1005
1006		-The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
	1563	+
	1564	+)))
1007	1007
1008		-* Support new features
1009		-* For bug fix
1010		-* Change LoRaWAN bands.
	1566	+(% aria-label="1654162478620-421.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162478620-421.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1011	1011
1012		-Below shows the hardware connection for how to upload an image to RS485-BL:
1013	1013
1014		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
	1569	+= 6. FAQ =
1015	1015
1016		-**Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
	1571	+== 6.1 How to upgrade the image? ==
1017	1017
1018		-**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1019	1019
1020		-**Step3: **Open flashloader; choose the correct COM port to update.
	1574	+(((
	1575	+The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	1576	+)))
1021	1021
	1578	+* (((
	1579	+Support new features
	1580	+)))
	1581	+* (((
	1582	+For bug fix
	1583	+)))
	1584	+* (((
	1585	+Change LoRaWAN bands.
	1586	+)))
1022	1022
1023		-|(((
1024		-HOLD PRO then press the RST button, SYS will be ON, then click next
	1588	+(((
	1589	+Below shows the hardware connection for how to upload an image to RS485-LN:
1025	1025	)))
1026	1026
1027		-|(((
1028		-Board detected
	1592	+(% aria-label="1654162535040-878.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162535040-878.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
	1593	+
	1594	+(% title="Click and drag to resize" %)​
	1595	+
	1596	+(((
	1597	+(% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
	1598	+
	1599	+
1029	1029	)))
1030	1030
1031		-|(((
	1602	+(((
	1603	+(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]].
	1604	+
1032	1032
1033	1033	)))
1034	1034
1035		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]
	1608	+(((
	1609	+(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1036	1036
	1611	+
	1612	+)))
1037	1037
	1614	+(((
	1615	+(((
	1616	+(((
	1617	+(% style="color:blue" %) Hold down the PRO button and then momentarily press the RST reset button and the SYS led will change from OFF to ON, While SYS LED is RED ON, it means the RS485-LN is ready to be program.
	1618	+)))
	1619	+)))
	1620	+)))
1038	1038
1039		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]
1040	1040
	1623	+(% aria-label="image-20220602175818-12.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175818-12.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1041	1041
1042		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1043	1043
	1626	+(% aria-label="image-20220602175848-13.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175848-13.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1044	1044
1045		-1.
1046		-11. How to change the LoRa Frequency Bands/Region?
1047	1047
1048		-User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
	1629	+(% aria-label="image-20220602175912-14.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175912-14.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1049	1049
1050	1050
1051	1051
1052		-1.
1053		-11. How many RS485-Slave can RS485-BL connects?
	1633	+(% style="color:red" %)**Users can select the new burning software STM32Cubeprogramer for firmware upgrade and follow the same connection steps to enter burning mode (until SYS LED is RED ON):**
1054	1054
1055		-The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>path:#downlink_A8]].
	1635	+[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H4.2.FirmwareupgradeusingSTM32Cubeprogramer>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H4.2.FirmwareupgradeusingSTM32Cubeprogramer]]
1056	1056
1057	1057
	1638	+(% style="color:red" %)**Notice**: **In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:**
1058	1058
	1640	+(% aria-label="image-20220602175638-10.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175638-10.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1059	1059
1060		-1. Trouble Shooting
1061		-11. Downlink doesn’t work, how to solve it?
1062	1062
1063		-Please see this link for debug:
	1643	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
1064	1064
1065		-[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug]]
1066	1066
	1646	+User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1067	1067
1068	1068
1069		-1.
1070		-11. Why I can’t join TTN V3 in US915 /AU915 bands?
	1649	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
1071	1071
1072		-It might about the channels mapping. Please see for detail.
1073	1073
1074		-[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
	1652	+The RS485-LN can support max 32 RS485 devices. Each uplink command of RS485-LN can support max 16 different RS485 command. So RS485-LN can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
1075	1075
1076	1076
	1655	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1077	1077
1078		-1. Order Info
1079	1079
1080		-**Part Number: RS485-BL-XXX**
	1658	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1081	1081
1082		-**XXX:**
	1660	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1083	1083
1084		-* **EU433**: frequency bands EU433
1085		-* **EU868**: frequency bands EU868
1086		-* **KR920**: frequency bands KR920
1087		-* **CN470**: frequency bands CN470
1088		-* **AS923**: frequency bands AS923
1089		-* **AU915**: frequency bands AU915
1090		-* **US915**: frequency bands US915
1091		-* **IN865**: frequency bands IN865
1092		-* **RU864**: frequency bands RU864
1093		-* **KZ865: **frequency bands KZ865
1094	1094
1095		-1. Packing Info
	1663	+== 6.5 Can i use point to point communication for RS485-LN? ==
1096	1096
	1665	+
	1666	+Yes, please updating point-to-point [[firmware>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]]，then refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
	1667	+
	1668	+
	1669	+== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
	1670	+
	1671	+
	1672	+[[Use RS485-BL or RS485-LN to connect to RS232 devices. - DRAGINO>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/RS485%20to%20RS232/]]
	1673	+
	1674	+
	1675	+== 6.7 How to judge whether there is a problem with the set COMMAND ==
	1676	+
	1677	+=== 6.7.1 Introduce: ===
	1678	+
	1679	+
	1680	+Users can use below the structure to fast debug the communication between RS485BL and RS485-LN. The principle is to put the PC in the RS485 network and sniff the packet between Modbus MTU and RS485-BL/LN. We can use this way to:
	1681	+
	1682	+1. Test if Modbus-MTU works with PC commands.
	1683	+1. Check if RS485-LN sent the expected command to Mobus-MTU
	1684	+1. Check if Modbus-MTU return back the expected result to RS485-LN.
	1685	+1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
	1686	+
	1687	+[[image:image-20240816112950-1.png||height="382" width="731"]]
	1688	+
	1689	+
	1690	+Example Connection:
	1691	+
	1692	+[[image:image-20221130104310-2.png]]
	1693	+
	1694	+
	1695	+=== 6.7.2 Set up PC to monitor RS485 network With Serial tool ===
	1696	+
	1697	+
	1698	+(% style="color:red" %)**Note: Receive and send set to hex mode**
	1699	+
	1700	+[[image:image-20221130104310-3.png||height="616" width="714"]]
	1701	+
	1702	+
	1703	+=== 6.7.3 With ModRSsim2: ===
	1704	+
	1705	+
	1706	+(% style="color:blue" %)**(1) Select serial port MODBUS RS-232**
	1707	+
	1708	+[[image:image-20221130104310-4.png||height="390" width="865"]]
	1709	+
	1710	+
	1711	+(% style="color:blue" %)**(2) Click the serial port icon**
	1712	+
	1713	+[[image:image-20221130104310-5.png||height="392" width="870"]]
	1714	+
	1715	+
	1716	+(% style="color:blue" %)**(3) After selecting the correct serial port and baud rate, click ok**
	1717	+
	1718	+[[image:image-20221130104310-6.png]]
	1719	+
	1720	+
	1721	+(% style="color:blue" %)**(4) Click the comms.**
	1722	+
	1723	+[[image:image-20221130104310-7.png||height="376" width="835"]]
	1724	+
	1725	+(% class="wikigeneratedid" id="HRunRS485-LN2FBLcommandandmonitorifitiscorrect." %)
	1726	+**Run RS485-LN/BL command and monitor if it is correct.**
	1727	+
	1728	+
	1729	+=== 6.7.4 Example – Test the CFGDEV command ===
	1730	+
	1731	+
	1732	+RS485-LN sent below command:
	1733	+
	1734	+(% style="color:blue" %)**AT+CFGDEV=01 03 00 20 00 01,1**(%%) to RS485 network, and PC is able to get this command and return commands from MTU to show in the serial tool.
	1735	+
	1736	+
	1737	+We can see the output from the Serial port tool to analyze. And check if they are expected result.
	1738	+
	1739	+[[image:image-20221130104310-8.png||height="214" width="797"]]
	1740	+
	1741	+
	1742	+We can also use (% style="color:blue" %)**ModRSsim2**(%%) to see the output.
	1743	+
	1744	+[[image:image-20221130104310-9.png||height="531" width="729"]]
	1745	+
	1746	+
	1747	+=== 6.7.5 Example – Test CMD command sets. ===
	1748	+
	1749	+
	1750	+Run (% style="color:blue" %)**AT+SENSORVALUE=1**(%%) to test the CMD commands set in RS485-LN.
	1751	+
	1752	+
	1753	+(% style="color:blue" %)**Serial port tool:**
	1754	+
	1755	+[[image:image-20221130104310-10.png||height="339" width="844"]]
	1756	+
	1757	+
	1758	+(% style="color:blue" %)**ModRSsim2:**
	1759	+
	1760	+[[image:image-20221130104310-11.png||height="281" width="962"]]
	1761	+
	1762	+
	1763	+=== 6.7.6 Test with PC ===
	1764	+
	1765	+
	1766	+If there is still have problem to set up correctly the commands between RS485-LN and MTU. User can test the correct RS485 command set in PC and compare with the RS485 command sent out via RS485-LN. as long as both commands are the same, the MTU should return correct result.
	1767	+
	1768	+
	1769	+Or User can send the working commands set in PC serial tool to Dragino Support to check what should be configured in RS485-LN.
	1770	+
	1771	+(% style="color:blue" %)**Connection method：**
	1772	+
	1773	+[[image:image-20221130104310-12.png]]
	1774	+
	1775	+
	1776	+(% style="color:blue" %)**Link situation:**
	1777	+
	1778	+[[image:image-20221130104310-13.png||height="458" width="486"]]
	1779	+
	1780	+
	1781	+[[image:image-20221130104310-14.png||height="371" width="823"]]
	1782	+
	1783	+
	1784	+== 6.8 Where to get the decoder for RS485-LN? ==
	1785	+
	1786	+
	1787	+The decoder for RS485-LN needs to be written by yourself. Because the sensor to which the user is connected is custom, the read device data bytes also need custom parsing, so there is no universal decoder. We can only provide [[templates>>https://github.com/dragino/dragino-end-node-decoder/tree/main/RS485-LN]] for decoders (no intermediate data parsing part involved)
	1788	+
	1789	+
	1790	+== 6.9 How to configure RS485 commands more conveniently？ ==
	1791	+
	1792	+
	1793	+Dragino has developed an application for the RS485 series of products.
	1794	+
	1795	+It can help you configure RS485 sensors more conveniently
	1796	+Please refer to the link below for specific usage：
	1797	+
	1798	+[[RS485 Configure Tool - DRAGINO>>url:http://wiki.dragino.com/xwiki/bin/view/Main/RS485_Configure_Tool/#HTableofContentsFF1A]]
	1799	+
	1800	+
	1801	+= 7. Trouble Shooting =
	1802	+
	1803	+== 7.1 Downlink doesn't work, how to solve it? ==
	1804	+
	1805	+
	1806	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
	1807	+
	1808	+
	1809	+== 7.2 Why customers can't join TTN V3 in US915 /AU915 bands? ==
	1810	+
	1811	+
	1812	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	1813	+
	1814	+
	1815	+== 7.3 Why can't customers see the device's data in the server when the data is too long? ==
	1816	+
	1817	+This is due to the limitation of the lorawan protocol, and the fixed DR needs to be adjusted to improve this problem.
	1818	+
	1819	+Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
	1820	+
	1821	+[[lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf>>url:https://lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf]]
	1822	+
	1823	+Example:
	1824	+
	1825	+[[image:image-20240620145456-1.png]]
	1826	+
	1827	+Please refer to the following command to fix DR
	1828	+
	1829	+AT+ADR=0
	1830	+
	1831	+AT+DR=3
	1832	+
	1833	+Downlink command:
	1834	+
	1835	+[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate]]
	1836	+
	1837	+
	1838	+
	1839	+= 8. Order Info =
	1840	+
	1841	+
	1842	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
	1843	+
	1844	+(% style="color:blue" %)**XXX:**
	1845	+
	1846	+* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
	1847	+* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
	1848	+* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
	1849	+* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
	1850	+* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
	1851	+* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
	1852	+* (% style="color:red" %)**US915**(%%):  frequency bands US915
	1853	+* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
	1854	+* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
	1855	+* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
	1856	+
	1857	+= 9. Packing Info =
	1858	+
	1859	+
1097	1097	**Package Includes**:
1098	1098
1099		-* RS485-BL x 1
	1862	+* RS485-LN x 1
1100	1100	* Stick Antenna for LoRa RF part x 1
1101	1101	* Program cable x 1
1102	1102
...	...	@@ -1107,9 +1107,67 @@
1107	1107	* Package Size / pcs : 14.5 x 8 x 5 cm
1108	1108	* Weight / pcs : 170g
1109	1109
1110		-1. Support
	1873	+= 10. FCC Caution for RS485LN-US915 =
1111	1111
1112		-* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1113		-* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
1114	1114
1115		-[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
	1876	+(((
	1877	+Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1878	+)))
	1879	+
	1880	+(((
	1881	+This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
	1882	+)))
	1883	+
	1884	+(((
	1885	+
	1886	+)))
	1887	+
	1888	+(((
	1889	+(% style="color:red" %)**IMPORTANT NOTE:**
	1890	+)))
	1891	+
	1892	+(((
	1893	+(% style="color:red" %)**Note: **(%%)This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
	1894	+)))
	1895	+
	1896	+(((
	1897	+—Reorient or relocate the receiving antenna.
	1898	+)))
	1899	+
	1900	+(((
	1901	+—Increase the separation between the equipment and receiver.
	1902	+)))
	1903	+
	1904	+(((
	1905	+—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1906	+)))
	1907	+
	1908	+(((
	1909	+—Consult the dealer or an experienced radio/TV technician for help.
	1910	+)))
	1911	+
	1912	+(((
	1913	+
	1914	+)))
	1915	+
	1916	+(((
	1917	+(% style="color:red" %)**FCC Radiation Exposure Statement:**
	1918	+)))
	1919	+
	1920	+(((
	1921	+This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
	1922	+)))
	1923	+
	1924	+
	1925	+= 11. Support =
	1926	+
	1927	+
	1928	+* (((
	1929	+Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
	1930	+)))
	1931	+* (((
	1932	+Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
	1933	+
	1934	+
	1935	+
	1936	+)))

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