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

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Details

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

Content

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1		-(% style="text-align:center" %)
2		-[[image:1653266934636-343.png||height="385" width="385"]]
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5	5
6		-**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7	7
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9	9	**Table of Contents:**
10	10
	17	+{{toc/}}
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15	15	= 1.Introduction =
16	16
	33	+
17	17	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
18	18
19	19	(((
20	20	(((
21		-The Dragino RS485-LN is a **RS485 to LoRaWAN Converter**. It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
	38	+(((
	39	+
	40	+
	41	+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.
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24	24	(((
25		-RS485-LN allows user to **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.
	46	+(((
	47	+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.
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27	27
28	28	(((
29		-**For data uplink**, RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
	52	+(((
	53	+(% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
30	30	)))
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31	31
32	32	(((
33		-**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.
	58	+(((
	59	+(% 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.
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34	34
35		-**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]]
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	63	+(% 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]]
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36	36	)))
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38	38
39		-[[image:1653267211009-519.png||height="419" width="724"]]
	70	+(% 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" %)​
40	40
	72	+
	73	+
41	41	== 1.2 Specifications ==
42	42
43		-**Hardware System:**
44	44
	77	+(% style="color:#037691" %)**Hardware System:**
	78	+
45	45	* STM32L072CZT6 MCU
46	46	* SX1276/78 Wireless Chip
47	47	* Power Consumption (exclude RS485 device):
48	48	** Idle: 32mA@12v
49		-
50		-*
51	51	** 20dB Transmit: 65mA@12v
52	52
53		-**Interface for Model:**
54	54
	86	+(% style="color:#037691" %)**Interface for Model:**
	87	+
55	55	* RS485
56	56	* Power Input 7~~ 24V DC.
57	57
58		-**LoRa Spec:**
59	59
	92	+(% style="color:#037691" %)**LoRa Spec:**
	93	+
60	60	* Frequency Range:
61	61	** Band 1 (HF): 862 ~~ 1020 Mhz
62	62	** Band 2 (LF): 410 ~~ 528 Mhz
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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.
	111	+* Packet engine up to 256 bytes with CRC
78	78
	113	+
	114	+
79	79	== 1.3 Features ==
80	80
	117	+
81	81	* LoRaWAN Class A & Class C protocol (default Class C)
82		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	119	+* 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
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87	87	* Support Modbus protocol
88	88	* Support Interrupt uplink (Since hardware version v1.2)
89	89
	127	+
	128	+
90	90	== 1.4 Applications ==
91	91
	131	+
92	92	* Smart Buildings & Home Automation
93	93	* Logistics and Supply Chain Management
94	94	* Smart Metering
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96	96	* Smart Cities
97	97	* Smart Factory
98	98
	139	+
	140	+
99	99	== 1.5 Firmware Change log ==
100	100
	143	+
101	101	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
102	102
	146	+
	147	+
103	103	== 1.6 Hardware Change log ==
104	104
	150	+
105	105	(((
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107	107	v1.2: Add External Interrupt Pin.
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108	108
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109	109	v1.0: Release
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111	111	)))
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112	112
113	113	= 2. Power ON Device =
114	114
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115	115	(((
116	116	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
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122	122	Once there is power, the RS485-LN will be on.
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124	124
125		-[[image:1653268091319-405.png]]
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127	127
128	128	= 3. Operation Mode =
129	129
	187	+
130	130	== 3.1 How it works? ==
131	131
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132	132	(((
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133	133	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.
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	199	+
136	136	== 3.2 Example to join LoRaWAN network ==
137	137
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138	138	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.
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140		-[[image:1653268155545-638.png||height="334" width="724"]]
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142	142	(((
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143	143	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:
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144	144
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145	145	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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147		-[[image:1653268227651-549.png||height="592" width="720"]]
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149	149	(((
150		-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:
	224	+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:
	225	+
	226	+
151	151	)))
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153	153	(((
154		-**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
	230	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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162		-[[image:1652953462722-299.png]]
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163	163
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164	164	(((
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166	166	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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169	169	(((
170		-Add APP EUI in the application.
	249	+**Add APP EUI in the application.**
171	171	)))
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174		-[[image:image-20220519174512-1.png]]
	253	+(% 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" %)​
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176		-[[image:image-20220519174512-2.png||height="323" width="720"]]
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178		-[[image:image-20220519174512-3.png||height="556" width="724"]]
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180		-[[image:image-20220519174512-4.png]]
	259	+(% 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"]]
181	181
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	263	+
182	182	You can also choose to create the device manually.
183	183
184		-[[image:1652953542269-423.png||height="710" width="723"]]
	266	+(% 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" %)​
185	185
186		-Add APP KEY and DEV EUI
187	187
188		-[[image:1652953553383-907.png||height="514" width="724"]]
189	189
	270	+**Add APP KEY and DEV EUI**
190	190
	272	+(% 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" %)​
	273	+
	274	+
	275	+
191	191	(((
192		-**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.
	277	+(% 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.
	278	+
	279	+
193	193	)))
194	194
195		-[[image:1652953568895-172.png||height="232" width="724"]]
	282	+(% 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" %)​
196	196
	284	+
	285	+
197	197	== 3.3 Configure Commands to read data ==
198	198
	288	+
199	199	(((
200	200	(((
201		-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.
	291	+(((
	292	+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>>||anchor="H3.5ConfigureRS485-LNviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
	293	+
	294	+
202	202	)))
	296	+)))
203	203
204	204	(((
205		-(% 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
	299	+(((
	300	+(% 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**
206	206	)))
	302	+
	303	+
	304	+
207	207	)))
	306	+)))
208	208
209		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	308	+=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
210	210
	310	+
211	211	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:
212	212
213		-(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
214		-|(((
	313	+
	314	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	315	+|=(% style="width: 110px;" %)(((
215	215	**AT Commands**
216		-)))|(% style="width:285px" %)(((
	317	+)))|=(% style="width: 190px;" %)(((
217	217	**Description**
218		-)))|(% style="width:347px" %)(((
	319	+)))|=(% style="width: 190px;" %)(((
219	219	**Example**
220	220	)))
221		-|(((
	322	+|(% style="width:110px" %)(((
222	222	AT+BAUDR
223		-)))|(% style="width:285px" %)(((
	324	+)))|(% style="width:190px" %)(((
224	224	Set the baud rate (for RS485 connection). Default Value is: 9600.
225		-)))|(% style="width:347px" %)(((
	326	+)))|(% style="width:190px" %)(((
226	226	(((
227	227	AT+BAUDR=9600
228	228	)))
...	...	@@ -231,11 +231,11 @@
231	231	Options: (1200,2400,4800,14400,19200,115200)
232	232	)))
233	233	)))
234		-|(((
	335	+|(% style="width:110px" %)(((
235	235	AT+PARITY
236		-)))|(% style="width:285px" %)(((
	337	+)))|(% style="width:190px" %)(((
237	237	Set UART parity (for RS485 connection)
238		-)))|(% style="width:347px" %)(((
	339	+)))|(% style="width:190px" %)(((
239	239	(((
240	240	AT+PARITY=0
241	241	)))
...	...	@@ -244,9 +244,9 @@
244	244	Option: 0: no parity, 1: odd parity, 2: even parity
245	245	)))
246	246	)))
247		-|(((
	348	+|(% style="width:110px" %)(((
248	248	AT+STOPBIT
249		-)))|(% style="width:285px" %)(((
	350	+)))|(% style="width:190px" %)(((
250	250	(((
251	251	Set serial stopbit (for RS485 connection)
252	252	)))
...	...	@@ -254,7 +254,7 @@
254	254	(((
255	255
256	256	)))
257		-)))|(% style="width:347px" %)(((
	358	+)))|(% style="width:190px" %)(((
258	258	(((
259	259	AT+STOPBIT=0 for 1bit
260	260	)))
...	...	@@ -268,906 +268,1340 @@
268	268	)))
269	269	)))
270	270
	372	+
	373	+
271	271	=== 3.3.2 Configure sensors ===
272	272
	376	+
273	273	(((
274	274	(((
275		-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.
	379	+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.
	380	+
	381	+
276	276	)))
277	277	)))
278	278
279		-(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
280		-|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
281		-|AT+CFGDEV|(% style="width:418px" %)(((
	385	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	386	+|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
	387	+|AT+CFGDEV|(% style="width:110px" %)(((
	388	+(((
282	282	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	390	+)))
283	283
	392	+(((
284	284	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	394	+)))
285	285
	396	+(((
286	286	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
287		-)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	398	+)))
	399	+)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
288	288
	401	+
	402	+
289	289	=== 3.3.3 Configure read commands for each sampling ===
290	290
	405	+
291	291	(((
292		-RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink.
	407	+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.
	408	+
	409	+To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	410	+
	411	+This section describes how to achieve above goals.
	412	+
	413	+During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	414	+
	415	+
	416	+(% style="color:#037691" %)**Each RS485 commands include two parts:**
	417	+
	418	+
	419	+~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.
	420	+
	421	+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.
	422	+
	423	+3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example **AT+CMDDL1=1000** to send the open time to 1000ms
	424	+
	425	+
	426	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	427	+
	428	+Below are examples for the how above AT Commands works.
	429	+
	430	+
	431	+(% 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:
	432	+
	433	+(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	434	+|(% style="width:496px" %)(((
	435	+(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	436	+
	437	+**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	438	+
	439	+**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
293	293	)))
294	294
295		-(((
296		-During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload.
	442	+For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
	443	+
	444	+In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	445	+
	446	+
	447	+(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
	448	+
	449	+(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	450	+|(% style="width:510px" %)(((
	451	+**AT+DATACUTx=a,b,c**
	452	+
	453	+* **a: length for the return of AT+COMMAND**
	454	+* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
	455	+* **c: define the position for valid value.  **
297	297	)))
298	298
	458	+**Examples:**
	459	+
	460	+
	461	+* (% style="color:#037691" %)**Grab bytes**
	462	+
	463	+(% 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" %)​
	464	+
	465	+
	466	+
	467	+* (% style="color:#037691" %)**Grab a section**
	468	+
	469	+(% 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" %)​
	470	+
	471	+
	472	+
	473	+* (% style="color:#037691" %)**Grab different sections**
	474	+
	475	+(% 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" %)​
	476	+
	477	+
	478	+
	479	+)))
	480	+
	481	+=== 3.3.4 Compose the uplink payload ===
	482	+
	483	+
299	299	(((
300		-To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	485	+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.**
	486	+
	487	+
301	301	)))
302	302
303	303	(((
304		-This section describes how to achieve above goals.
	491	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
	492	+
	493	+
305	305	)))
306	306
307	307	(((
308		-During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	497	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
309	309	)))
310	310
311	311	(((
312		-**Command from RS485-BL to Sensor:**
	501	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
313	313	)))
314	314
315	315	(((
316		-RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
	505	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	506	+
	507	+
317	317	)))
318	318
	510	+(% aria-label="1653269759169-150.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653269759169-150.png||data-widget="image" height="513" width="716"]](% 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" %)​
	511	+
	512	+
	513	+(% style="color:#037691" %)**Examples: AT+DATAUP=1**
	514	+
	515	+
	516	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	517	+
	518	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	519	+
	520	+
	521	+1. PAYVER: Defined by AT+PAYVER
	522	+1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	523	+1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	524	+1. 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
	525	+
	526	+
	527	+(% 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" %)​
	528	+
	529	+
	530	+So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
	531	+
	532	+DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
	533	+
	534	+DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
	535	+
	536	+DATA3=the rest of Valid value of RETURN10= **30**
	537	+
	538	+
	539	+(% 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:**
	540	+
	541	+
	542	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
	543	+
	544	+ * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
	545	+
	546	+ * For US915 band, max 11 bytes for each uplink.
	547	+
	548	+ ~* For all other bands: max 51 bytes for each uplink.
	549	+
	550	+(% style="color:red" %)*** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
	551	+
	552	+(% 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)**
	553	+
	554	+
	555	+(% style="color:#4f81bd" %)**If the data is empty, return to the display（Since v1.4.0）**
	556	+
	557	+1 )  When (% style="color:blue" %)**AT+MOD=1**(%%), 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**.
	558	+
	559	+
	560	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114359-3.png?width=1106&height=297&rev=1.1||alt="image-20220824114359-3.png" height="297" width="1106"]]
	561	+
	562	+
	563	+
	564	+2 )  When (% style="color:blue" %)**AT+MOD=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 00s**.
	565	+
	566	+
	567	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114330-2.png?rev=1.1||alt="image-20220824114330-2.png"]]
	568	+
	569	+
	570	+
	571	+Below are the uplink payloads:
	572	+
	573	+
	574	+(% 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" %)​
	575	+
	576	+
	577	+
	578	+=== 3.3.5 Uplink on demand ===
	579	+
	580	+
	581	+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.
	582	+
	583	+(% style="color:blue" %)**Downlink control command:**
	584	+
	585	+(% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
	586	+
	587	+(% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
	588	+
	589	+
	590	+
	591	+=== 3.3.6 Uplink on Interrupt ===
	592	+
	593	+
	594	+RS485-LN support external Interrupt uplink since hardware v1.2 release.
	595	+
	596	+
	597	+(% 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" %)​
	598	+
	599	+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.
	600	+
	601	+
	602	+
	603	+== 3.4 Uplink Payload ==
	604	+
	605	+
	606	+(% aria-label="image-20220606110929-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220606110929-1.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"]]
	607	+
	608	+(% title="Click and drag to resize" %)​
	609	+
	610	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	611	+
	612	+
	613	+
	614	+== 3.5 Configure RS485-LN via AT or Downlink ==
	615	+
	616	+
319	319	(((
320		-**Handle return from sensors to RS485-BL**:
	618	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
321	321	)))
322	322
323	323	(((
324		-After RS485-BL send out a string to sensor, RS485-BL will wait for the return from RS485 or TTL sensor. And user can specify how to handle the return, by **AT+DATACUT or AT+SEARCH commands**
	622	+There are two kinds of Commands:
325	325	)))
326	326
327	327	* (((
328		-**AT+DATACUT**
	626	+(% 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]]
329	329	)))
330	330
	629	+* (((
	630	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	631	+)))
	632	+
331	331	(((
332		-When the return value from sensor have fix length and we know which position the valid value we should get, we can use AT+DATACUT command.
	634	+
333	333	)))
334	334
	637	+
	638	+
	639	+=== 3.5.1 Common Commands ===
	640	+
	641	+
	642	+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]]
	643	+
	644	+
	645	+
	646	+=== 3.5.2 Downlink Response(Since firmware v1.4) ===
	647	+
	648	+
	649	+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.
	650	+
	651	+(% 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"]](% title="Click and drag to resize" %)​
	652	+
	653	+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)
	654	+
	655	+
	656	+
	657	+=== 3.5.3 Sensor related commands ===
	658	+
	659	+
	660	+
	661	+
	662	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
	663	+
	664	+
	665	+(((
	666	+This command is used to configure the RS485 devices; they won't be used during sampling.
	667	+)))
	668	+
335	335	* (((
336		-**AT+SEARCH**
	670	+(% style="color:#037691" %)**AT Command**
	671	+
	672	+(((
	673	+(% 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
337	337	)))
	675	+)))
338	338
339	339	(((
340		-When the return value from sensor is dynamic length and we are not sure which bytes the valid data is, instead, we know what value the valid value following. We can use AT+SEARCH to search the valid value in the return string.
	678	+
341	341	)))
342	342
	681	+* (((
	682	+(% style="color:#037691" %)**Downlink Payload**
	683	+)))
	684	+
343	343	(((
344		-**Define wait timeout:**
	686	+Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
345	345	)))
346	346
347	347	(((
348		-Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example, AT+CMDDL1=1000 to send the open time to 1000ms
	690	+Where:
349	349	)))
350	350
	693	+* (((
	694	+MM: 1: add CRC-16/MODBUS ; 0: no CRC
	695	+)))
	696	+* (((
	697	+NN: The length of RS485 command
	698	+)))
	699	+* (((
	700	+XX XX XX XX: RS485 command total NN bytes
	701	+)))
	702	+* (((
351	351	(((
352		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	704	+YY: How many bytes will be uplink from the return of this RS485 command,
353	353	)))
354	354
355		-**Examples:**
	707	+* (((
	708	+if YY=0, RS485-LN will execute the downlink command without uplink;
	709	+)))
	710	+* (((
	711	+if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	712	+)))
	713	+* (((
	714	+if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	715	+)))
	716	+)))
356	356
357		-Below are examples for the how above AT Commands works.
	718	+(((
	719	+
358	358
359		-**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
	721	+(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
	722	+)))
360	360
361		-(% border="1" class="table-bordered" %)
362		-|(((
363		-**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	724	+(((
	725	+To connect a Modbus Alarm with below commands.
	726	+)))
364	364
365		-**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	728	+* (((
	729	+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.
	730	+)))
366	366
367		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
	732	+* (((
	733	+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.
368	368	)))
369	369
370	370	(((
371		-For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
	737	+
	738	+
	739	+So if user want to use downlink command to control to RS485 Alarm, he can use:
372	372	)))
373	373
374	374	(((
375		-In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	743	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
376	376	)))
377	377
378	378	(((
379		-**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
	747	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
380	380	)))
381	381
382		-(% border="1" class="table-bordered" %)
383		-|(((
384		-**AT+SEARCHx=aa,xx xx xx xx xx**
	750	+(((
	751	+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.
	752	+)))
385	385
386		-* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
387		-* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
388		-
	754	+(((
389	389
390	390	)))
391	391
392		-**Examples:**
	758	+(((
	759	+(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
	760	+)))
393	393
394		-~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	762	+(((
	763	+User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
	764	+)))
395	395
396		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
	766	+(((
	767	+
	768	+)))
397	397
398		-The valid data will be all bytes after 1E 56 34 , so it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30 31 00 49**
	770	+(((
	771	+(((
	772	+RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:  **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
	773	+)))
399	399
400		-[[image:1653269403619-508.png]]
	775	+
	776	+)))
401	401
402		-2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	778	+(((
	779	+ (% aria-label="1654159460680-153.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654159460680-153.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" %)​
	780	+)))
403	403
404		-If we set AT+SEARCH1=2, 1E 56 34+31 00 49
405	405
406		-Device will search the bytes between 1E 56 34 and 31 00 49. So it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30**
407	407
408		-[[image:1653269438444-278.png]]
409	409
410		-**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
	785	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
411	411
412		-|(((
413		-**AT+DATACUTx=a,b,c**
414	414
415		-* **a: length for the return of AT+COMMAND**
416		-* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
417		-* **c: define the position for valid value.  **
	788	+(((
	789	+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.
418	418	)))
419	419
420		-Examples:
	792	+* (((
	793	+(% style="color:#037691" %)**AT Command:**
421	421
422		-* Grab bytes:
	795	+(% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
423	423
424		-[[image:1653269551753-223.png||height="311" width="717"]]
	797	+
	798	+)))
	799	+* (((
	800	+(% style="color:#037691" %)**Downlink Payload:**
	801	+)))
425	425
426		-* Grab a section.
	803	+(((
	804	+(% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
	805	+)))
427	427
428		-[[image:1653269568276-930.png||height="325" width="718"]]
	807	+(((
	808	+(% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
	809	+)))
429	429
430		-* Grab different sections.
431	431
432		-[[image:1653269593172-426.png||height="303" width="725"]]
	812	+1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)
433	433
434		-(% style="color:red" %)**Note:**
	814	+[[image:image-20220824145428-2.png||height="168" width="1300"]]
435	435
436		-AT+SEARCHx and AT+DATACUTx can be used together, if both commands are set, RS485-BL will first process AT+SEARCHx on the return string and get a temporary string, and then process AT+DATACUTx on this temporary string to get the final payload. In this case, AT+DATACUTx need to set to format AT+DATACUTx=0,xx,xx where the return bytes set to 0.
437	437
438		-Example:
	817	+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.
439	439
440		-(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
441	441
442		-(% style="color:red" %)AT+SEARCH1=1,1E 56 34
	820	+[[image:image-20220824145428-3.png||height="308" width="1200"]]
443	443
444		-(% style="color:red" %)AT+DATACUT1=0,2,1~~5
445	445
446		-(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
447	447
448		-(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
449	449
450		-(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
	825	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
451	451
452		-[[image:1653269618463-608.png]]
453	453
454		-=== 3.3.4 Compose the uplink payload ===
	828	+(((
	829	+AT+COMMANDx or AT+DATACUTx
	830	+)))
455	455
456	456	(((
457		-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.**
	833	+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"]].
458	458	)))
459	459
460	460	(((
461		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
	837	+
462	462	)))
463	463
	840	+* (((
	841	+(% style="color:#037691" %)**AT Command:**
	842	+)))
	843	+
	844	+(% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
	845	+
	846	+(% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
	847	+
	848	+
	849	+* (((
	850	+(% style="color:#037691" %)**Downlink Payload:**
	851	+)))
	852	+
464	464	(((
465		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
	854	+(% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	855	+
	856	+
466	466	)))
467	467
468	468	(((
469		-Final Payload is
	860	+(% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
	861	+
	862	+
470	470	)))
471	471
472	472	(((
473		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	866	+Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
474	474	)))
475	475
476	476	(((
477		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	870	+Where:
478	478	)))
479	479
480		-[[image:1653269759169-150.png||height="513" width="716"]]
	873	+* (((
	874	+MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	875	+)))
	876	+* (((
	877	+NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	878	+)))
	879	+* (((
	880	+LL:  The length of AT+COMMAND or AT+DATACUT command
	881	+)))
	882	+* (((
	883	+XX XX XX XX: AT+COMMAND or AT+DATACUT command
	884	+)))
	885	+* (((
	886	+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.
	887	+)))
481	481
482		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
	889	+(((
	890	+
483	483
484		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	892	+**Example:**
	893	+)))
485	485
486		-Final Payload is
	895	+(((
	896	+(% 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
	897	+)))
487	487
488		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	899	+(((
	900	+(% 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**
	901	+)))
489	489
490		-1. Battery Info (2 bytes): Battery voltage
491		-1. PAYVER (1 byte): Defined by AT+PAYVER
492		-1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
493		-1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
494		-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
	903	+(((
	904	+(% 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**
	905	+)))
495	495
496		-[[image:1653269916228-732.png||height="433" width="711"]]
497	497
498	498
499		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
500	500
501		-DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
	910	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
502	502
503		-DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
504	504
505		-DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
	913	+(((
	914	+(% 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]].
	915	+)))
506	506
507		-Below are the uplink payloads:
	917	+(((
	918	+This command is valid since v1.3 firmware version
	919	+)))
508	508
509		-[[image:1653270130359-810.png]]
	921	+(((
	922	+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.
	923	+)))
510	510
	925	+(((
	926	+
	927	+)))
511	511
512		-(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
	929	+(((
	930	+**Example:**
	931	+)))
513	513
514		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
	933	+* (((
	934	+AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
	935	+)))
	936	+* (((
	937	+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.
	938	+)))
	939	+* (((
	940	+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.
515	515
516		- * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	942	+
	943	+)))
517	517
518		- * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	945	+(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]](% title="Click and drag to resize" %)​
519	519
520		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
	947	+(% 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" %)​
521	521
522		-=== 3.3.5 Uplink on demand ===
523	523
524		-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.
525	525
526		-Downlink control command:
527	527
528		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
	952	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
529	529
530		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
531	531
	955	+(((
	956	+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.
	957	+)))
532	532
	959	+(((
	960	+Default value: 0, range:  0 ~~ 65 seconds
	961	+)))
533	533
534		-1.
535		-11.
536		-111. Uplink on Interrupt
	963	+(((
	964	+* (% style="color:#037691" %)** AT Command:**
537	537
538		-Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
539	539
540		-AT+INTMOD=0  Disable Interrupt
	967	+(% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
	968	+)))
541	541
542		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	970	+(((
	971	+
543	543
544		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
	973	+**Example:**
	974	+)))
545	545
546		-AT+INTMOD=3  Interrupt trigger by rising edge.
	976	+(((
	977	+(% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
	978	+)))
547	547
	980	+(((
	981	+
	982	+)))
548	548
549		-1.
550		-11. Uplink Payload
	984	+* (((
	985	+(% style="color:#037691" %)** Downlink Payload:**
	986	+)))
551	551
552		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
553		-|Value|(((
554		-Battery(mV)
	988	+(((
	989	+(% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
	990	+)))
555	555
556		-&
557		-
558		-Interrupt _Flag
559		-)))|(((
560		-PAYLOAD_VER
561		-
	992	+(((
562	562
563		-)))|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.
564	564
565		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	995	+**Example:**
	996	+)))
566	566
	998	+(((
	999	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	1000	+)))
567	567
568		-function Decoder(bytes, port) {
569	569
570		-~/~/Payload Formats of RS485-BL Deceive
571	571
572		-return {
573	573
574		- ~/~/Battery,units:V
	1005	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
575	575
576		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
577	577
578		- ~/~/GPIO_EXTI
	1008	+(((
	1009	+Define to use one uplink or multiple uplinks for the sampling.
	1010	+)))
579	579
580		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
	1012	+(((
	1013	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
581	581
582		- ~/~/payload of version
	1015	+
	1016	+)))
583	583
584		- Pay_ver:bytes[2],
	1018	+(((
	1019	+* (% style="color:#037691" %)** AT Command:**
585	585
586		- };
587	587
588		- }
	1022	+(% style="color:#4472c4" %)** AT+DATAUP=0**
589	589
	1024	+(% style="color:#4472c4" %)** AT+DATAUP=1**
590	590
	1026	+
	1027	+)))
591	591
	1029	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
592	592
	1031	+Each uplink is sent to the server at 20-second intervals when segmented.
593	593
594	594
	1034	+* (((
	1035	+(% style="color:#037691" %)** Downlink Payload:**
	1036	+)))
595	595
596		-TTN V3 uplink screen shot.
	1038	+(% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
597	597
598		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1040	+(% 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.
599	599
600		-1.
601		-11. Configure RS485-BL via AT or Downlink
602	602
603		-User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
	1043	+* (((
	1044	+(% style="color:#037691" %)** AT Command:**
	1045	+)))
604	604
605		-There are two kinds of Commands:
	1047	+(% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
606	606
607		-* **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
608	608
609		-* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
	1050	+* (((
	1051	+(% style="color:#037691" %)** Downlink Payload:**
	1052	+)))
610	610
611		-1.
612		-11.
613		-111. Common Commands:
	1054	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
614	614
615		-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]]
	1056	+Each uplink is sent to the server at 20-second intervals when segmented.
616	616
617	617
618		-1.
619		-11.
620		-111. Sensor related commands:
621	621
622		-==== Choose Device Type (RS485 or TTL) ====
623	623
624		-RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
	1061	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
625	625
626		-* AT Command
627	627
628		-**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
	1064	+(((
	1065	+Ask device to send an uplink immediately.
	1066	+)))
629	629
630		-**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
	1068	+* (((
	1069	+(% style="color:#037691" %)** AT Command:**
	1070	+)))
631	631
	1072	+(((
	1073	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1074	+)))
632	632
633		-* Downlink Payload
	1076	+(((
	1077	+
	1078	+)))
634	634
635		-**0A aa**     à same as AT+MOD=aa
	1080	+* (((
	1081	+(% style="color:#037691" %)** Downlink Payload:**
	1082	+)))
636	636
	1084	+(((
	1085	+(% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
	1086	+)))
637	637
638	638
639		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
640	640
641		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
642	642
643		-* AT Command
	1091	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
644	644
645		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
646	646
647		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	1094	+(((
	1095	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
648	648
	1097	+
	1098	+)))
649	649
	1100	+* (((
	1101	+(% style="color:#037691" %)** AT Command:**
	1102	+)))
650	650
651		-* Downlink Payload
	1104	+(((
	1105	+(% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
	1106	+)))
652	652
653		-Format: A8 MM NN XX XX XX XX YY
	1108	+(((
	1109	+
654	654
655		-Where:
	1111	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1112	+)))
656	656
657		-* MM: 1: add CRC-16/MODBUS ; 0: no CRC
658		-* NN: The length of RS485 command
659		-* XX XX XX XX: RS485 command total NN bytes
660		-* 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
	1114	+(((
	1115	+Example screen shot after clear all RS485 commands.
	1116	+)))
661	661
662		-**Example 1:**
	1118	+(((
	1119	+
	1120	+)))
663	663
664		-To connect a Modbus Alarm with below commands.
	1122	+(((
	1123	+The uplink screen shot is:
	1124	+)))
665	665
666		-* 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.
	1126	+(% 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" %)​
667	667
668		-* 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.
669	669
670		-So if user want to use downlink command to control to RS485 Alarm, he can use:
	1129	+* (((
	1130	+(% style="color:#037691" %)** Downlink Payload:**
	1131	+)))
671	671
672		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
	1133	+(((
	1134	+(% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
	1135	+)))
673	673
674		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
675	675
676		-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.
677	677
678	678
679		-**Example 2:**
	1140	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
680	680
681		-Check TTL Sensor return:
682	682
683		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
	1143	+(((
	1144	+Set the Rs485 serial communication parameters:
684	684
	1146	+
	1147	+)))
685	685
	1149	+* (((
	1150	+(% style="color:#037691" %)** AT Command:**
686	686
687	687
688		-==== Set Payload version ====
	1153	+
	1154	+)))
689	689
690		-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.
	1156	+(((
	1157	+* Set Baud Rate
	1158	+)))
691	691
692		-* AT Command:
	1160	+(% 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
693	693
694		-AT+PAYVER: Set PAYVER field = 1
695	695
	1163	+(((
	1164	+* Set UART Parity
	1165	+)))
696	696
697		-* Downlink Payload:
	1167	+(% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
698	698
699		-0xAE 01   à Set PAYVER field =  0x01
700	700
701		-0xAE 0F   à Set PAYVER field =  0x0F
	1170	+(((
	1171	+* Set STOPBIT
	1172	+)))
702	702
	1174	+(% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
703	703
704		-==== Set RS485 Sampling Commands ====
705	705
706		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
707	707
708		-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]].
	1178	+* (((
	1179	+(% style="color:#037691" %)** Downlink Payload:**
	1180	+)))
709	709
	1182	+(((
	1183	+(% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
	1184	+)))
710	710
711		-* AT Command:
	1186	+(((
	1187	+
712	712
713		-AT+COMMANDx: Configure RS485 read command to sensor.
	1189	+**Example:**
	1190	+)))
714	714
715		-AT+DATACUTx: Configure how to handle return from RS485 devices.
	1192	+* (((
	1193	+A7 01 00 60  same as AT+BAUDR=9600
	1194	+)))
	1195	+* (((
	1196	+A7 01 04 80  same as AT+BAUDR=115200
	1197	+)))
716	716
717		-AT+SEARCHx: Configure search command
	1199	+(((
	1200	+* A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1201	+)))
718	718
	1203	+(((
	1204	+* A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1205	+)))
719	719
720		-* Downlink Payload:
721	721
722		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
723	723
724		-Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
725	725
726		-Format: AF MM NN LL XX XX XX XX YY
727	727
728		-Where:
	1211	+==== (% style="color:blue" %)**Encrypted payload**(%%) ====
729	729
730		-* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
731		-* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
732		-* LL: The length of AT+COMMAND or AT+DATACUT command
733		-* XX XX XX XX: AT+COMMAND or AT+DATACUT command
734		-* 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.
	1213	+(((
	1214	+
	1215	+)))
735	735
736		-Example:
	1217	+* (((
	1218	+(% style="color:#037691" %)** AT Command:**
	1219	+)))
737	737
738		-**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
	1221	+(% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
739	739
740		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
	1223	+(% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
741	741
742		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
743	743
744	744
745		-0xAB downlink command can be used for set AT+SEARCHx
746	746
747		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
	1228	+==== (% style="color:blue" %)**Get sensor value**(%%) ====
748	748
749		-* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
750		-* 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
751	751
752		-**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
	1231	+* (((
	1232	+(% style="color:#037691" %)** AT Command:**
	1233	+)))
753	753
	1235	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
754	754
755		-==== Fast command to handle MODBUS device ====
	1237	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
756	756
757		-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]].
758	758
759		-This command is valid since v1.3 firmware version
760	760
761	761
762		-AT+MBFUN has only two value:
	1242	+==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
763	763
764		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
765	765
766		-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.
	1245	+* (((
	1246	+(% style="color:#037691" %)** AT Command:**
	1247	+)))
767	767
768		-* AT+MBFUN=0: Disable Modbus fast reading.
	1249	+(% 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)
769	769
770		-Example:
	1251	+(% 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.
771	771
772		-* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
773		-* 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.
774		-* 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.
775	775
776		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
777	777
778	778
779		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
	1256	+==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
780	780
781	781
782		-* Downlink Commands:
	1259	+* (((
	1260	+(% style="color:#037691" %)** AT Command:**
	1261	+)))
783	783
784		-A9 aa -à Same as AT+MBFUN=aa
	1263	+ (% 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)
785	785
	1265	+ (% 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.
786	786
787		-==== RS485 command timeout ====
788	788
789		-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.
	1268	+* (((
	1269	+(% style="color:#037691" %)** Downlink Payload:**
	1270	+)))
790	790
791		-Default value: 0, range:  0 ~~ 5 seconds
	1272	+(% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
792	792
793	793
794		-* AT Command:
795	795
796		-AT+CMDDLaa=hex(bb cc)
797	797
798		-Example:
	1277	+==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
799	799
800		-**AT+CMDDL1=1000** to send the open time to 1000ms
801	801
	1280	+* (((
	1281	+(% style="color:#037691" %)** AT Command:**
	1282	+)))
802	802
803		-* Downlink Payload:
	1284	+(% 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.
804	804
805		-0x AA aa bb cc
806	806
807		-Same as: AT+CMDDLaa=hex(bb cc)
	1287	+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.
808	808
809		- Example:
810	810
811		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
	1290	+[[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"]]
812	812
813	813
814		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
815	815
816		-Define to use one uplink or multiple uplinks for the sampling.
	1294	+For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
817	817
818		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
819	819
820		-* AT Command:
	1297	+[[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"]]
821	821
822		-AT+DATAUP=0
823	823
824		-AT+DATAUP=1
	1300	+For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
825	825
826	826
827		-* Downlink Payload:
828	828
829		-0xAD 00   à Same as AT+DATAUP=0
830	830
831		-0xAD 01   à Same as AT+DATAUP=1
	1305	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
832	832
833	833
834		-==== Manually trigger an Uplink ====
	1308	+(((
	1309	+* (% style="color:#037691" %)**Downlink Payload:**
835	835
836		-Ask device to send an uplink immediately.
837	837
838		-* Downlink Payload:
	1312	+(% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
	1313	+)))
839	839
840		-0x08 FF, RS485-BL will immediately send an uplink.
841	841
	1316	+Example：
842	842
843		-==== Clear RS485 Command ====
844	844
845		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	1319	+[[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"]]
846	846
847	847
848		-* AT Command:
849	849
850		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
851	851
852		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1324	+==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
853	853
854		-Example screen shot after clear all RS485 commands.
855	855
	1327	+* (((
	1328	+(% style="color:#037691" %)** AT Command:**
	1329	+)))
856	856
	1331	+(% 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.
857	857
858		-The uplink screen shot is:
	1333	+(% 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.
859	859
860		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1335	+(% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/ Disable this mode (default)
861	861
862	862
863		-* Downlink Payload:
	1338	+* (((
	1339	+(% style="color:#037691" %)**Downlink Payload:**
	1340	+)))
864	864
865		-0x09 aa bb same as AT+CMDEAR=aa,bb
	1342	+(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/same as AT+RXMODE=aa,bb
866	866
	1344	+[[image:image-20220824144240-1.png]]
867	867
868		-==== Set Serial Communication Parameters ====
869	869
870		-Set the Rs485 serial communication parameters:
871	871
872		-* AT Command:
	1348	+== 3.6 Listening mode for RS485 network ==
873	873
874		-Set Baud Rate:
875	875
876		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1351	+(((
	1352	+This feature support since firmware v1.4
	1353	+)))
877	877
	1355	+(((
	1356	+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.
878	878
879		-Set UART parity
	1358	+
	1359	+)))
880	880
881		-AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1361	+(% 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"]](% title="Click and drag to resize" %)​
882	882
	1363	+(((
	1364	+To enable the listening mode, use can run the command AT+RXMODE.
	1365	+)))
883	883
884		-Set STOPBIT
	1367	+(((
	1368	+
	1369	+)))
885	885
886		-AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1371	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
	1372	+|=(% style="width: 100px;" %)(((
	1373	+**Command example**
	1374	+)))|=(% style="width: 400px;" %)(((
	1375	+**Function**
	1376	+)))
	1377	+|(% style="width:100px" %)(((
	1378	+AT+RXMODE=1,10
	1379	+)))|(% style="width:400px" %)(((
	1380	+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.
	1381	+)))
	1382	+|(% style="width:100px" %)(((
	1383	+AT+RXMODE=2,500
	1384	+)))|(% style="width:400px" %)(((
	1385	+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
	1386	+)))
	1387	+|(% style="width:100px" %)(((
	1388	+AT+RXMODE=0,0
	1389	+)))|(% style="width:400px" %)(((
	1390	+Disable listening mode. This is the default settings.
	1391	+)))
	1392	+|(% style="width:100px" %)(((
	1393	+
	1394	+)))|(% style="width:400px" %)(((
	1395	+A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
	1396	+)))
887	887
	1398	+(((
	1399	+(% style="color:#037691" %)** Downlink Command:**
	1400	+)))
888	888
889		-* Downlink Payload:
	1402	+(((
	1403	+**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
	1404	+)))
890	890
891		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
	1406	+(((
	1407	+
	1408	+)))
892	892
893		-Example:
	1410	+(((
	1411	+**Example**:
	1412	+)))
894	894
895		-* A7 01 00 60   same as AT+BAUDR=9600
896		-* A7 01 04 80  same as AT+BAUDR=115200
	1414	+(((
	1415	+The RS485-LN is set to AT+RXMODE=2,1000
	1416	+)))
897	897
898		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1418	+(((
	1419	+There is a two Modbus commands in the RS485 network as below:
	1420	+)))
899	899
900		-A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1422	+(((
	1423	+The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1424	+)))
901	901
	1426	+(((
	1427	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1428	+)))
902	902
903		-==== Control output power duration ====
	1430	+(((
	1431	+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
	1432	+)))
904	904
905		-User can set the output power duration before each sampling.
	1434	+(((
	1435	+(% 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" %)​
	1436	+)))
906	906
907		-* AT Command:
	1438	+(((
	1439	+
	1440	+)))
908	908
909		-Example:
	1442	+(((
	1443	+(((
	1444	+(% 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.**
	1445	+)))
	1446	+)))
910	910
911		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
912	912
913		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
914	914
	1450	+== 3.7 Buttons ==
915	915
916		-* LoRaWAN Downlink Command:
917	917
918		-07 01 aa bb  Same as AT+5VT=(aa bb)
	1453	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1454	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
	1455	+|(% 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**
	1456	+|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
	1457	+|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
919	919
920		-07 02 aa bb  Same as AT+3V3T=(aa bb)
	1459	+== 3.8 LEDs ==
921	921
922	922
	1462	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1463	+|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
	1464	+|**PWR**|Always on if there is power
	1465	+|**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.
923	923
	1467	+= 4. Case Study =
924	924
925		-1.
926		-11. Buttons
927	927
928		-|**Button**|**Feature**
929		-|**RST**|Reboot RS485-BL
	1470	+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]]
930	930
931		-1.
932		-11. +3V3 Output
933	933
934		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
935	935
936		-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.
	1474	+= 5. Use AT Command =
937	937
938	938
939		-The +3V3 output time can be controlled by AT Command.
	1477	+== 5.1 Access AT Command ==
940	940
941		-**AT+3V3T=1000**
942	942
943		-Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
	1480	+(((
	1481	+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.
	1482	+)))
944	944
	1484	+(% 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" %)​
945	945
946		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
947	947
	1487	+(((
	1488	+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:
	1489	+)))
948	948
949		-1.
950		-11. +5V Output
	1491	+(% 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" %)​
951	951
952		-RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
953	953
954		-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.
	1494	+(((
	1495	+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/]]
	1496	+)))
955	955
956	956
957		-The 5V output time can be controlled by AT Command.
958	958
959		-**AT+5VT=1000**
	1500	+== 5.2 Common AT Command Sequence ==
960	960
961		-Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
962	962
	1503	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
963	963
964		-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.
965	965
	1506	+If device has not joined network yet:
966	966
	1508	+* (% style="color:#037691" %)**AT+FDR**
	1509	+* (% style="color:#037691" %)**AT+NJM=0**
	1510	+* (% style="color:#037691" %)**ATZ**
967	967
	1512	+(((
	1513	+
968	968
969		-1.
970		-11. LEDs
	1515	+If device already joined network:
971	971
972		-|**LEDs**|**Feature**
973		-|**LED1**|Blink when device transmit a packet.
	1517	+* (% style="color:#037691" %)**AT+NJM=0**
	1518	+* (% style="color:#037691" %)**ATZ**
974	974
975		-1.
976		-11. Switch Jumper
	1520	+
	1521	+)))
977	977
978		-|**Switch Jumper**|**Feature**
979		-|**SW1**|(((
980		-ISP position: Upgrade firmware via UART
981	981
982		-Flash position: Configure device, check running status.
983		-)))
984		-|**SW2**|(((
985		-5V position: set to compatible with 5v I/O.
986	986
987		-3.3v position: set to compatible with 3.3v I/O.,
988		-)))
	1525	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
989	989
990		-+3.3V: is always ON
991	991
992		-+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
	1528	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
993	993
994		-1. Case Study
	1530	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
995	995
996		-User can check this URL for some case studies.
	1532	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
997	997
998		-[[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]]
	1534	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
999	999
	1536	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1000	1000
	1538	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1001	1001
	1540	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1002	1002
1003		-1. Use AT Command
1004		-11. Access AT Command
	1542	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1005	1005
1006		-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.
	1544	+(% 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.
1007	1007
1008		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
	1546	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1009	1009
1010	1010
1011		-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:
	1549	+(% style="color:red" %)**Note:**
1012	1012
1013		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
	1551	+(((
	1552	+(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1553	+2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1554	+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.
	1555	+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
1014	1014
	1557	+
	1558	+)))
1015	1015
	1560	+(% 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" %)​
1016	1016
1017		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1018	1018
1019	1019
	1564	+= 6. FAQ =
1020	1020
1021		-1.
1022		-11. Common AT Command Sequence
1023		-111. Multi-channel ABP mode (Use with SX1301/LG308)
1024	1024
1025		-If device has not joined network yet:
	1567	+== 6.1 How to upgrade the image? ==
1026	1026
1027		-AT+FDR
1028	1028
1029		-AT+NJM=0
	1570	+(((
	1571	+The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	1572	+)))
1030	1030
1031		-ATZ
	1574	+* (((
	1575	+Support new features
	1576	+)))
	1577	+* (((
	1578	+For bug fix
	1579	+)))
	1580	+* (((
	1581	+Change LoRaWAN bands.
	1582	+)))
1032	1032
	1584	+(((
	1585	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1586	+)))
1033	1033
1034		-If device already joined network:
	1588	+(% 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"]]
1035	1035
1036		-AT+NJM=0
	1590	+(% title="Click and drag to resize" %)​
1037	1037
1038		-ATZ
	1592	+(((
	1593	+(% 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]].
	1594	+)))
1039	1039
1040		-1.
1041		-11.
1042		-111. Single-channel ABP mode (Use with LG01/LG02)
	1596	+(((
	1597	+(% 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]].
	1598	+)))
1043	1043
1044		-AT+FDR   Reset Parameters to Factory Default, Keys Reserve
	1600	+(((
	1601	+(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
	1602	+)))
1045	1045
1046		-AT+NJM=0 Set to ABP mode
	1604	+(((
	1605	+(((
	1606	+(((
	1607	+(% 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.
	1608	+)))
	1609	+)))
	1610	+)))
1047	1047
1048		-AT+ADR=0 Set the Adaptive Data Rate Off
1049	1049
1050		-AT+DR=5  Set Data Rate
	1613	+(% 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" %)​
1051	1051
1052		-AT+TDC=60000  Set transmit interval to 60 seconds
1053	1053
1054		-AT+CHS=868400000 Set transmit frequency to 868.4Mhz
	1616	+(% 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" %)​
1055	1055
1056		-AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1057	1057
1058		-AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
	1619	+(% 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" %)​
1059	1059
1060		-AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1061	1061
1062		-ATZ          Reset MCU
	1622	+(% 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:**
1063	1063
1064		-**Note:**
	1624	+(% 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" %)​
1065	1065
1066		-1. Make sure the device is set to ABP mode in the IoT Server.
1067		-1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1068		-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.
1069		-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
1070	1070
1071		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1072	1072
	1628	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
1073	1073
1074		-1. FAQ
1075		-11. How to upgrade the image?
1076	1076
1077		-The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
	1631	+User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1078	1078
1079		-* Support new features
1080		-* For bug fix
1081		-* Change LoRaWAN bands.
1082	1082
1083		-Below shows the hardware connection for how to upload an image to RS485-BL:
1084	1084
1085		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
	1635	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
1086	1086
1087		-**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]].
1088	1088
1089		-**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
	1638	+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"]].
1090	1090
1091		-**Step3: **Open flashloader; choose the correct COM port to update.
1092	1092
1093	1093
1094		-|(((
1095		-HOLD PRO then press the RST button, SYS will be ON, then click next
1096		-)))
	1642	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1097	1097
1098		-|(((
1099		-Board detected
1100		-)))
1101	1101
1102		-|(((
1103		-
1104		-)))
	1645	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1105	1105
1106		-[[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]]
	1647	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1107	1107
1108	1108
1109	1109
1110		-[[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]]
	1651	+== 6.5 Can i use point to point communication for RS485-LN? ==
1111	1111
1112	1112
1113		-[[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]]
	1654	+Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1114	1114
1115	1115
1116		-1.
1117		-11. How to change the LoRa Frequency Bands/Region?
1118	1118
1119		-User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
	1658	+== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1120	1120
1121	1121
	1661	+[[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/]]
1122	1122
1123		-1.
1124		-11. How many RS485-Slave can RS485-BL connects?
1125	1125
1126		-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]].
1127	1127
	1665	+= 7. Trouble Shooting =
1128	1128
1129	1129
	1668	+== 7.1 Downlink doesn't work, how to solve it? ==
1130	1130
1131		-1. Trouble Shooting
1132		-11. Downlink doesn’t work, how to solve it?
1133	1133
1134		-Please see this link for debug:
	1671	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1135	1135
1136		-[[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]]
1137	1137
1138	1138
	1675	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1139	1139
1140		-1.
1141		-11. Why I can’t join TTN V3 in US915 /AU915 bands?
1142	1142
1143		-It might about the channels mapping. Please see for detail.
	1678	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1144	1144
1145		-[[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]]
1146	1146
1147	1147
	1682	+= 8. Order Info =
1148	1148
1149		-1. Order Info
1150	1150
1151		-**Part Number: RS485-BL-XXX**
	1685	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1152	1152
1153		-**XXX:**
	1687	+(% style="color:blue" %)**XXX:**
1154	1154
1155		-* **EU433**: frequency bands EU433
1156		-* **EU868**: frequency bands EU868
1157		-* **KR920**: frequency bands KR920
1158		-* **CN470**: frequency bands CN470
1159		-* **AS923**: frequency bands AS923
1160		-* **AU915**: frequency bands AU915
1161		-* **US915**: frequency bands US915
1162		-* **IN865**: frequency bands IN865
1163		-* **RU864**: frequency bands RU864
1164		-* **KZ865: **frequency bands KZ865
	1689	+* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
	1690	+* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
	1691	+* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
	1692	+* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
	1693	+* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
	1694	+* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
	1695	+* (% style="color:red" %)**US915**(%%):  frequency bands US915
	1696	+* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
	1697	+* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
	1698	+* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1165	1165
1166		-1. Packing Info
	1700	+= 9.Packing Info =
1167	1167
	1702	+
1168	1168	**Package Includes**:
1169	1169
1170		-* RS485-BL x 1
	1705	+* RS485-LN x 1
1171	1171	* Stick Antenna for LoRa RF part x 1
1172	1172	* Program cable x 1
1173	1173
...	...	@@ -1178,9 +1178,68 @@
1178	1178	* Package Size / pcs : 14.5 x 8 x 5 cm
1179	1179	* Weight / pcs : 170g
1180	1180
1181		-1. Support
	1716	+= 10. FCC Caution for RS485LN-US915 =
1182	1182
1183		-* 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.
1184		-* 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
1185	1185
1186		-[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
	1719	+(((
	1720	+Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1721	+)))
	1722	+
	1723	+(((
	1724	+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.
	1725	+)))
	1726	+
	1727	+(((
	1728	+
	1729	+)))
	1730	+
	1731	+(((
	1732	+(% style="color:red" %)**IMPORTANT NOTE:**
	1733	+)))
	1734	+
	1735	+(((
	1736	+(% 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:
	1737	+)))
	1738	+
	1739	+(((
	1740	+—Reorient or relocate the receiving antenna.
	1741	+)))
	1742	+
	1743	+(((
	1744	+—Increase the separation between the equipment and receiver.
	1745	+)))
	1746	+
	1747	+(((
	1748	+—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1749	+)))
	1750	+
	1751	+(((
	1752	+—Consult the dealer or an experienced radio/TV technician for help.
	1753	+)))
	1754	+
	1755	+(((
	1756	+
	1757	+)))
	1758	+
	1759	+(((
	1760	+(% style="color:red" %)**FCC Radiation Exposure Statement:**
	1761	+)))
	1762	+
	1763	+(((
	1764	+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.
	1765	+)))
	1766	+
	1767	+
	1768	+
	1769	+= 11. Support =
	1770	+
	1771	+
	1772	+* (((
	1773	+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.
	1774	+)))
	1775	+* (((
	1776	+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]].
	1777	+
	1778	+
	1779	+
	1780	+)))

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