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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4	4
5	5
6		-**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7	7
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9	9	**Table of Contents:**
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	22	+{{toc/}}
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15	15	= 1.Introduction =
16	16
17	17	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
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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.
	42	+(((
	43	+
	44	+
	45	+The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
22	22	)))
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23	23
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.
	50	+(((
	51	+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.
	56	+(((
	57	+(% 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.
	62	+(((
	63	+(% 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.
34	34	)))
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	66	+(((
	67	+(% 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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35	35	)))
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36	36
37		-[[image:1653267211009-519.png||height="419" width="724"]]
	74	+(% 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" %)​
38	38
	76	+
39	39	== 1.2 Specifications ==
40	40
	79	+
41	41	**Hardware System:**
42	42
43	43	* STM32L072CZT6 MCU
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44	44	* SX1276/78 Wireless Chip
45	45	* Power Consumption (exclude RS485 device):
46	46	** Idle: 32mA@12v
47		-
48		-*
49	49	** 20dB Transmit: 65mA@12v
50	50
51	51	**Interface for Model:**
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72	72	* Preamble detection.
73	73	* 127 dB Dynamic Range RSSI.
74	74	* Automatic RF Sense and CAD with ultra-fast AFC.
75		-* Packet engine up to 256 bytes with CRC.
	112	+* Packet engine up to 256 bytes with CRC
76	76
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77	77	== 1.3 Features ==
78	78
79	79	* LoRaWAN Class A & Class C protocol (default Class C)
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85	85	* Support Modbus protocol
86	86	* Support Interrupt uplink (Since hardware version v1.2)
87	87
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	130	+
88	88	== 1.4 Applications ==
89	89
90	90	* Smart Buildings & Home Automation
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94	94	* Smart Cities
95	95	* Smart Factory
96	96
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97	97	== 1.5 Firmware Change log ==
98	98
99	99	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
100	100
	147	+
101	101	== 1.6 Hardware Change log ==
102	102
103	103	(((
104	104	(((
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105	105	v1.2: Add External Interrupt Pin.
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106	106
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107	107	v1.0: Release
108	108	)))
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109	109	)))
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110	110
111	111	= 2. Power ON Device =
112	112
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120	120	Once there is power, the RS485-LN will be on.
121	121	)))
122	122
123		-[[image:1653268091319-405.png]]
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124	124	)))
125	125
126	126	= 3. Operation Mode =
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128	128	== 3.1 How it works? ==
129	129
130	130	(((
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131	131	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.
132	132	)))
133	133
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	192	+
134	134	== 3.2 Example to join LoRaWAN network ==
135	135
136	136	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.
137	137
138		-[[image:1653268155545-638.png||height="334" width="724"]]
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140	140	(((
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141	141	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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142	142
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143	143	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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144	144
145		-[[image:1653268227651-549.png||height="592" width="720"]]
	209	+(% aria-label="1653268227651-549.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268227651-549.png||data-widget="image" height="592" width="720"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
146	146
	211	+
147	147	(((
148		-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:
	213	+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:
149	149	)))
150	150
151	151	(((
152		-**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
	217	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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160		-[[image:1652953462722-299.png]]
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162	162	(((
163	163	(((
164	164	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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165	165	)))
166	166
167	167	(((
168		-Add APP EUI in the application.
	234	+**Add APP EUI in the application.**
169	169	)))
170	170	)))
171	171
172		-[[image:image-20220519174512-1.png]]
	238	+(% 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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174		-[[image:image-20220519174512-2.png||height="323" width="720"]]
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175	175
176		-[[image:image-20220519174512-3.png||height="556" width="724"]]
	242	+(% aria-label="image-20220519174512-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-3.png||data-widget="image" height="556" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
177	177
178		-[[image:image-20220519174512-4.png]]
	244	+(% 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"]](% title="Click and drag to resize" %)​
179	179
180	180	You can also choose to create the device manually.
181	181
182		-[[image:1652953542269-423.png||height="710" width="723"]]
	248	+(% 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" %)​
183	183
184		-Add APP KEY and DEV EUI
185	185
186		-[[image:1652953553383-907.png||height="514" width="724"]]
187	187
	252	+**Add APP KEY and DEV EUI**
188	188
	254	+(% 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" %)​
	255	+
	256	+
189	189	(((
190		-**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.
	258	+(% 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.
191	191	)))
192	192
193		-[[image:1652953568895-172.png||height="232" width="724"]]
	261	+(% 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" %)​
194	194
	263	+
195	195	== 3.3 Configure Commands to read data ==
196	196
197	197	(((
198	198	(((
199		-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.
	268	+(((
	269	+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.
200	200	)))
	271	+)))
201	201
202	202	(((
	274	+(((
203	203	(% 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
204	204	)))
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205	205	)))
	280	+)))
206	206
207	207	=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
208	208
209	209	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:
210	210
211		-(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
212		-|(((
	286	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	287	+|=(% style="width: 110px;" %)(((
213	213	**AT Commands**
214		-)))|(% style="width:285px" %)(((
	289	+)))|=(% style="width: 190px;" %)(((
215	215	**Description**
216		-)))|(% style="width:347px" %)(((
	291	+)))|=(% style="width: 190px;" %)(((
217	217	**Example**
218	218	)))
219		-|(((
	294	+|(% style="width:110px" %)(((
220	220	AT+BAUDR
221		-)))|(% style="width:285px" %)(((
	296	+)))|(% style="width:190px" %)(((
222	222	Set the baud rate (for RS485 connection). Default Value is: 9600.
223		-)))|(% style="width:347px" %)(((
	298	+)))|(% style="width:190px" %)(((
224	224	(((
225	225	AT+BAUDR=9600
226	226	)))
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229	229	Options: (1200,2400,4800,14400,19200,115200)
230	230	)))
231	231	)))
232		-|(((
	307	+|(% style="width:110px" %)(((
233	233	AT+PARITY
234		-)))|(% style="width:285px" %)(((
	309	+)))|(% style="width:190px" %)(((
235	235	Set UART parity (for RS485 connection)
236		-)))|(% style="width:347px" %)(((
	311	+)))|(% style="width:190px" %)(((
237	237	(((
238	238	AT+PARITY=0
239	239	)))
...	...	@@ -242,9 +242,9 @@
242	242	Option: 0: no parity, 1: odd parity, 2: even parity
243	243	)))
244	244	)))
245		-|(((
	320	+|(% style="width:110px" %)(((
246	246	AT+STOPBIT
247		-)))|(% style="width:285px" %)(((
	322	+)))|(% style="width:190px" %)(((
248	248	(((
249	249	Set serial stopbit (for RS485 connection)
250	250	)))
...	...	@@ -252,7 +252,7 @@
252	252	(((
253	253
254	254	)))
255		-)))|(% style="width:347px" %)(((
	330	+)))|(% style="width:190px" %)(((
256	256	(((
257	257	AT+STOPBIT=0 for 1bit
258	258	)))
...	...	@@ -266,6 +266,9 @@
266	266	)))
267	267	)))
268	268
	344	+
	345	+
	346	+
269	269	=== 3.3.2 Configure sensors ===
270	270
271	271	(((
...	...	@@ -274,94 +274,57 @@
274	274	)))
275	275	)))
276	276
277		-(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
278		-|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
279		-|AT+CFGDEV|(% style="width:418px" %)(((
280		-This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
281		-
282		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
283		-
284		-mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
285		-)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
286		-
287		-Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
288		-
289		-=== 3.3.3 Configure read commands for each sampling ===
290		-
	355	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	356	+|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
	357	+|AT+CFGDEV|(% style="width:110px" %)(((
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.
	359	+This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
293	293	)))
294	294
295	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.
	363	+AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
297	297	)))
298	298
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.
	367	+mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
301	301	)))
	369	+)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
302	302
303		-(((
304		-This section describes how to achieve above goals.
305		-)))
306	306
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.
309		-)))
310	310
311		-(((
312		-**Command from RS485-BL to Sensor:**
313		-)))
314	314
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.
317		-)))
	374	+=== 3.3.3 Configure read commands for each sampling ===
318	318
319	319	(((
320		-**Handle return from sensors to RS485-BL**:
321		-)))
	377	+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.
322	322
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**
325		-)))
	379	+To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
326	326
327		-* (((
328		-**AT+DATACUT**
329		-)))
	381	+This section describes how to achieve above goals.
330	330
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.
333		-)))
	383	+During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
334	334
335		-* (((
336		-**AT+SEARCH**
337		-)))
338	338
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.
341		-)))
	386	+(% style="color:#037691" %)**Each RS485 commands include two parts:**
342	342
343		-(((
344		-**Define wait timeout:**
345		-)))
	388	+~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.
346	346
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
349		-)))
	390	+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.
350	350
351		-(((
352		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
353		-)))
	392	+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
354	354
355		-**Examples:**
356	356
	395	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	396	+
357	357	Below are examples for the how above AT Commands works.
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:
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**
	400	+(% 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:
364	364
	402	+(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	403	+|(% style="width:496px" %)(((
	404	+(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	405	+
365	365	**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
366	366
367	367	**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
...	...	@@ -369,43 +369,13 @@
369	369
370	370	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.
371	371
372		-In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	413	+In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
373	373
374		-**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
375	375
376		-(% border="1" class="table-bordered" %)
377		-|(((
378		-**AT+SEARCHx=aa,xx xx xx xx xx**
	416	+(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
379	379
380		-* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
381		-* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
382		-
383		-
384		-)))
385		-
386		-Examples:
387		-
388		-1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
389		-
390		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
391		-
392		-The valid data will be all bytes after 1E 56 34 , so it is 2e 30 58 5f 36 41 30 31 00 49
393		-
394		-[[image:1652954654347-831.png]]
395		-
396		-
397		-1. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
398		-
399		-If we set AT+SEARCH1=2, 1E 56 34+31 00 49
400		-
401		-Device will search the bytes between 1E 56 34 and 31 00 49. So it is 2e 30 58 5f 36 41 30
402		-
403		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
404		-
405		-
406		-**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
407		-
408		-|(((
	418	+(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	419	+|(% style="width:510px" %)(((
409	409	**AT+DATACUTx=a,b,c**
410	410
411	411	* **a: length for the return of AT+COMMAND**
...	...	@@ -413,773 +413,1072 @@
413	413	* **c: define the position for valid value.  **
414	414	)))
415	415
416		-Examples:
	427	+**Examples:**
417	417
418		-* Grab bytes:
	429	+* (% style="color:#037691" %)**Grab bytes**
419	419
420		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
	431	+(% 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" %)​
421	421
422		-* Grab a section.
423	423
424		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
	434	+* (% style="color:#037691" %)**Grab a section**
425	425
426		-* Grab different sections.
	436	+(% 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" %)​
427	427
428		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
429	429
	439	+* (% style="color:#037691" %)**Grab different sections**
430	430
431		-Note:
	441	+(% 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" %)​
432	432
433		-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.
434	434
435		-Example:
	444	+
	445	+)))
436	436
437		-AT+COMMAND1=11 01 1E D0,0
	447	+=== 3.3.4 Compose the uplink payload ===
438	438
439		-AT+SEARCH1=1,1E 56 34
	449	+(((
	450	+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.**
440	440
441		-AT+DATACUT1=0,2,1~~5
	452	+
	453	+)))
442	442
443		-Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	455	+(((
	456	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
444	444
445		-String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
	458	+
	459	+)))
446	446
447		-Valid payload after DataCUT command: 2e 30 58 5f 36
	461	+(((
	462	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
	463	+)))
448	448
449		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
	465	+(((
	466	+Final Payload is
	467	+)))
450	450
	469	+(((
	470	+(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	471	+)))
451	451
	473	+(((
	474	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	475	+)))
452	452
	477	+(% 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" %)​
453	453
454		-1.
455		-11.
456		-111. Compose the uplink payload
457	457
458		-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.**
	480	+(% style="color:#037691" %)**Examples: AT+DATAUP=1**
459	459
460	460
461		-**Examples: AT+DATAUP=0**
	483	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
462	462
463		-Compose the uplink payload with value returns in sequence and send with **A SIGNLE UPLINK**.
464		-
465	465	Final Payload is
466	466
467		-Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx
	487	+(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
468	468
469		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
470	470
471		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
	490	+1. PAYVER: Defined by AT+PAYVER
	491	+1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	492	+1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	493	+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
472	472
	495	+(% 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" %)​
473	473
474	474
475		-**Examples: AT+DATAUP=1**
	498	+So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
476	476
477		-Compose the uplink payload with value returns in sequence and send with **Multiply UPLINKs**.
	500	+DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
478	478
479		-Final Payload is
	502	+DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
480	480
481		-Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA
	504	+DATA3=the rest of Valid value of RETURN10= **30**
482	482
483		-1. Battery Info (2 bytes): Battery voltage
484		-1. PAYVER (1 byte): Defined by AT+PAYVER
485		-1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
486		-1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
487		-1. DATA: Valid value: max 6 bytes(US915 version here, [[Notice*!>>path:#max_byte]]) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
488	488
489		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
	507	+(% 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:
490	490
	509	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
491	491
492		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
	511	+ * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
493	493
494		-DATA1=RETURN1 Valid Value = 20 20 0a 33 90 41
	513	+ * For US915 band, max 11 bytes for each uplink.
495	495
496		-DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10= 02 aa 05 81 0a 20
	515	+ ~* For all other bands: max 51 bytes for each uplink.
497	497
498		-DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = 20 20 20 2d 30
499	499
500		-
501		-
502	502	Below are the uplink payloads:
503	503
504		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]
	520	+(% 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" %)​
505	505
506	506
507		-Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:
508	508
509		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
	524	+=== 3.3.5 Uplink on demand ===
510	510
511		- * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	526	+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.
512	512
513		- * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	528	+Downlink control command:
514	514
515		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
	530	+**0x08 command**: Poll an uplink with current command set in RS485-LN.
516	516
	532	+**0xA8 command**: Send a command to RS485-LN and uplink the output from sensors.
517	517
518	518
519		-1.
520		-11.
521		-111. Uplink on demand
522	522
523		-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.
	536	+=== 3.3.6 Uplink on Interrupt ===
524	524
525		-Downlink control command:
	538	+RS485-LN support external Interrupt uplink since hardware v1.2 release.
526	526
527		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
	540	+(% 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" %)​
528	528
529		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
	542	+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.
530	530
531	531
	545	+== 3.4 Uplink Payload ==
532	532
533		-1.
534		-11.
535		-111. Uplink on Interrupt
536	536
537		-Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
	548	+(% 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"]](% title="Click and drag to resize" %)​
538	538
539		-AT+INTMOD=0  Disable Interrupt
	550	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
540	540
541		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
542	542
543		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
	553	+== 3.5 Configure RS485-LN via AT or Downlink ==
544	544
545		-AT+INTMOD=3  Interrupt trigger by rising edge.
	555	+(((
	556	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
	557	+)))
546	546
	559	+(((
	560	+There are two kinds of Commands:
	561	+)))
547	547
548		-1.
549		-11. Uplink Payload
	563	+* (((
	564	+(% 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]]
	565	+)))
550	550
551		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
552		-|Value|(((
553		-Battery(mV)
	567	+* (((
	568	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	569	+)))
554	554
555		-&
556		-
557		-Interrupt _Flag
558		-)))|(((
559		-PAYLOAD_VER
560		-
	571	+(((
561	561
562		-)))|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.
	573	+)))
563	563
564		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
565	565
	576	+=== 3.5.1 Common Commands ===
566	566
567		-function Decoder(bytes, port) {
	578	+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]]
568	568
569		-~/~/Payload Formats of RS485-BL Deceive
570	570
571		-return {
	581	+=== 3.5.2 Sensor related commands ===
572	572
573		- ~/~/Battery,units:V
	583	+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.
574	574
575		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
	585	+(% 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" %)​
576	576
577		- ~/~/GPIO_EXTI
	587	+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)
578	578
579		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
580	580
581		- ~/~/payload of version
582	582
583		- Pay_ver:bytes[2],
	591	+=== 3.5.3 Sensor related commands ===
584	584
585		- };
586	586
587		- }
588	588
589	589
	596	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
590	590
	598	+(((
	599	+This command is used to configure the RS485 devices; they won’t be used during sampling.
	600	+)))
591	591
	602	+* (((
	603	+(% style="color:#037691" %)**AT Command**
592	592
	605	+(((
	606	+**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
	607	+)))
	608	+)))
593	593
	610	+(((
	611	+
	612	+)))
594	594
595		-TTN V3 uplink screen shot.
	614	+* (((
	615	+(% style="color:#037691" %)**Downlink Payload**
	616	+)))
596	596
597		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	618	+(((
	619	+Format: A8 MM NN XX XX XX XX YY
	620	+)))
598	598
599		-1.
600		-11. Configure RS485-BL via AT or Downlink
	622	+(((
	623	+Where:
	624	+)))
601	601
602		-User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
	626	+* (((
	627	+MM: 1: add CRC-16/MODBUS ; 0: no CRC
	628	+)))
	629	+* (((
	630	+NN: The length of RS485 command
	631	+)))
	632	+* (((
	633	+XX XX XX XX: RS485 command total NN bytes
	634	+)))
	635	+* (((
	636	+(((
	637	+YY: How many bytes will be uplink from the return of this RS485 command,
	638	+)))
603	603
604		-There are two kinds of Commands:
	640	+* (((
	641	+if YY=0, RS485-LN will execute the downlink command without uplink;
	642	+)))
	643	+* (((
	644	+if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	645	+)))
	646	+* (((
	647	+if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	648	+)))
	649	+)))
605	605
606		-* **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
	651	+(((
	652	+
607	607
608		-* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
	654	+**Example 1**  ~-~-> Configure without ask for uplink (YY=0)
	655	+)))
609	609
610		-1.
611		-11.
612		-111. Common Commands:
	657	+(((
	658	+To connect a Modbus Alarm with below commands.
	659	+)))
613	613
614		-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]]
	661	+* (((
	662	+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.
	663	+)))
615	615
	665	+* (((
	666	+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.
	667	+)))
616	616
617		-1.
618		-11.
619		-111. Sensor related commands:
	669	+(((
	670	+
620	620
621		-==== Choose Device Type (RS485 or TTL) ====
	672	+So if user want to use downlink command to control to RS485 Alarm, he can use:
	673	+)))
622	622
623		-RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
	675	+(((
	676	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
	677	+)))
624	624
625		-* AT Command
	679	+(((
	680	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
	681	+)))
626	626
627		-**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
	683	+(((
	684	+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.
	685	+)))
628	628
629		-**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
	687	+(((
	688	+
	689	+)))
630	630
	691	+(((
	692	+**Example 2**  ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
	693	+)))
631	631
632		-* Downlink Payload
	695	+(((
	696	+User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
	697	+)))
633	633
634		-**0A aa**     à same as AT+MOD=aa
	699	+(((
	700	+
	701	+)))
635	635
	703	+(((
	704	+(((
	705	+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**
	706	+)))
636	636
	708	+
	709	+)))
637	637
638		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
	711	+(((
	712	+ (% 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" %)​
	713	+)))
639	639
640		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
641	641
642		-* AT Command
643	643
644		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
645	645
646		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	718	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
647	647
	720	+(((
	721	+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.
	722	+)))
648	648
	724	+* (((
	725	+(% style="color:#037691" %)**AT Command:**
649	649
650		-* Downlink Payload
	727	+**AT+PAYVER:    **Set PAYVER field = 1
651	651
652		-Format: A8 MM NN XX XX XX XX YY
	729	+
	730	+)))
	731	+* (((
	732	+(% style="color:#037691" %)**Downlink Payload:**
	733	+)))
653	653
654		-Where:
	735	+(((
	736	+**0xAE 01**  ~-~->  Set PAYVER field =  0x01
	737	+)))
655	655
656		-* MM: 1: add CRC-16/MODBUS ; 0: no CRC
657		-* NN: The length of RS485 command
658		-* XX XX XX XX: RS485 command total NN bytes
659		-* 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
	739	+(((
	740	+**0xAE 0F**   ~-~->  Set PAYVER field =  0x0F
	741	+)))
660	660
661		-**Example 1:**
662	662
663		-To connect a Modbus Alarm with below commands.
664	664
665		-* 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.
666	666
667		-* 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.
	746	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
668	668
669		-So if user want to use downlink command to control to RS485 Alarm, he can use:
	748	+(((
	749	+AT+COMMANDx or AT+DATACUTx
	750	+)))
670	670
671		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
	752	+(((
	753	+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"]].
	754	+)))
672	672
673		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
	756	+(((
	757	+
	758	+)))
674	674
675		-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.
	760	+* (((
	761	+(% style="color:#037691" %)**AT Command:**
	762	+)))
676	676
	764	+**AT+COMMANDx:    **Configure RS485 read command to sensor.
677	677
678		-**Example 2:**
	766	+**AT+DATACUTx:        **Configure how to handle return from RS485 devices.
679	679
680		-Check TTL Sensor return:
681	681
682		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
	769	+* (((
	770	+(% style="color:#037691" %)**Downlink Payload:**
	771	+)))
683	683
	773	+(((
	774	+**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	775	+)))
684	684
	777	+(((
	778	+(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
	779	+)))
685	685
	781	+(((
	782	+Format: AF MM NN LL XX XX XX XX YY
	783	+)))
686	686
687		-==== Set Payload version ====
	785	+(((
	786	+Where:
	787	+)))
688	688
689		-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.
	789	+* (((
	790	+MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	791	+)))
	792	+* (((
	793	+NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	794	+)))
	795	+* (((
	796	+LL:  The length of AT+COMMAND or AT+DATACUT command
	797	+)))
	798	+* (((
	799	+XX XX XX XX: AT+COMMAND or AT+DATACUT command
	800	+)))
	801	+* (((
	802	+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.
	803	+)))
690	690
691		-* AT Command:
	805	+(((
	806	+
692	692
693		-AT+PAYVER: Set PAYVER field = 1
	808	+**Example:**
	809	+)))
694	694
	811	+(((
	812	+(% 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
	813	+)))
695	695
696		-* Downlink Payload:
	815	+(((
	816	+(% 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**
	817	+)))
697	697
698		-0xAE 01   à Set PAYVER field =  0x01
	819	+(((
	820	+(% 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**
	821	+)))
699	699
700		-0xAE 0F   à Set PAYVER field =  0x0F
701	701
702	702
703		-==== Set RS485 Sampling Commands ====
704	704
705		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
	826	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
706	706
707		-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]].
	828	+(((
	829	+**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]].
	830	+)))
708	708
	832	+(((
	833	+This command is valid since v1.3 firmware version
	834	+)))
709	709
710		-* AT Command:
	836	+(((
	837	+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.
	838	+)))
711	711
712		-AT+COMMANDx: Configure RS485 read command to sensor.
	840	+(((
	841	+
	842	+)))
713	713
714		-AT+DATACUTx: Configure how to handle return from RS485 devices.
	844	+(((
	845	+**Example:**
	846	+)))
715	715
716		-AT+SEARCHx: Configure search command
	848	+* (((
	849	+AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
	850	+)))
	851	+* (((
	852	+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.
	853	+)))
	854	+* (((
	855	+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.
717	717
	857	+
	858	+)))
718	718
719		-* Downlink Payload:
	860	+(% 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" %)​
720	720
721		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	862	+(% 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" %)​
722	722
723		-Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
724	724
725		-Format: AF MM NN LL XX XX XX XX YY
726	726
727		-Where:
728	728
729		-* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
730		-* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
731		-* LL: The length of AT+COMMAND or AT+DATACUT command
732		-* XX XX XX XX: AT+COMMAND or AT+DATACUT command
733		-* 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.
	867	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
734	734
735		-Example:
	869	+(((
	870	+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.
	871	+)))
736	736
737		-**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
	873	+(((
	874	+Default value: 0, range:  0 ~~ 65 seconds
	875	+)))
738	738
739		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
	877	+* (((
	878	+(% style="color:#037691" %)** AT Command:**
740	740
741		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
	880	+**AT+CMDDLaa=hex(bb cc)*1000**
	881	+)))
742	742
	883	+(((
	884	+
743	743
744		-0xAB downlink command can be used for set AT+SEARCHx
	886	+**Example:**
	887	+)))
745	745
746		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
	889	+(((
	890	+**AT+CMDDL1=1000** to send the open time to 1000ms
	891	+)))
747	747
748		-* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
749		-* 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
	893	+(((
	894	+
	895	+)))
750	750
751		-**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
	897	+* (((
	898	+(% style="color:#037691" %)** Downlink Payload:**
	899	+)))
752	752
	901	+(((
	902	+**0x AA aa bb cc**
	903	+)))
753	753
754		-==== Fast command to handle MODBUS device ====
	905	+(((
	906	+Same as: AT+CMDDLaa=hex(bb cc)*1000
	907	+)))
755	755
756		-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]].
	909	+(((
	910	+**Example:**
	911	+)))
757	757
758		-This command is valid since v1.3 firmware version
	913	+(((
	914	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	915	+)))
759	759
760	760
761		-AT+MBFUN has only two value:
762	762
763		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
764	764
765		-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.
	920	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
766	766
767		-* AT+MBFUN=0: Disable Modbus fast reading.
	922	+(((
	923	+Define to use one uplink or multiple uplinks for the sampling.
	924	+)))
768	768
769		-Example:
	926	+(((
	927	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
770	770
771		-* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
772		-* 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.
773		-* 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.
	929	+
	930	+)))
774	774
775		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
	932	+* (((
	933	+(% style="color:#037691" %)** AT Command:**
	934	+)))
776	776
	936	+**AT+DATAUP=0**
777	777
778		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
	938	+**AT+DATAUP=1**
779	779
780	780
781		-* Downlink Commands:
	941	+* (((
	942	+(% style="color:#037691" %)** Downlink Payload:**
	943	+)))
782	782
783		-A9 aa -à Same as AT+MBFUN=aa
	945	+(((
	946	+**0xAD 00**  **~-~->** Same as AT+DATAUP=0
	947	+)))
784	784
	949	+(((
	950	+**0xAD 01**  **~-~->** Same as AT+DATAUP=1
	951	+)))
785	785
786		-==== RS485 command timeout ====
787	787
788		-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.
789	789
790		-Default value: 0, range:  0 ~~ 5 seconds
791	791
	956	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
792	792
793		-* AT Command:
	958	+(((
	959	+Ask device to send an uplink immediately.
	960	+)))
794	794
795		-AT+CMDDLaa=hex(bb cc)
	962	+* (((
	963	+(% style="color:#037691" %)** AT Command:**
	964	+)))
796	796
797		-Example:
	966	+(((
	967	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	968	+)))
798	798
799		-**AT+CMDDL1=1000** to send the open time to 1000ms
	970	+(((
	971	+
	972	+)))
800	800
	974	+* (((
	975	+(% style="color:#037691" %)** Downlink Payload:**
	976	+)))
801	801
802		-* Downlink Payload:
	978	+(((
	979	+**0x08 FF**, RS485-LN will immediately send an uplink.
	980	+)))
803	803
804		-0x AA aa bb cc
805	805
806		-Same as: AT+CMDDLaa=hex(bb cc)
807	807
808		- Example:
809	809
810		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
	985	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
811	811
	987	+(((
	988	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
812	812
813		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
	990	+
	991	+)))
814	814
815		-Define to use one uplink or multiple uplinks for the sampling.
	993	+* (((
	994	+(% style="color:#037691" %)** AT Command:**
	995	+)))
816	816
817		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
	997	+(((
	998	+**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
	999	+)))
818	818
819		-* AT Command:
	1001	+(((
	1002	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1003	+)))
820	820
821		-AT+DATAUP=0
	1005	+(((
	1006	+Example screen shot after clear all RS485 commands.
	1007	+)))
822	822
823		-AT+DATAUP=1
	1009	+(((
	1010	+
	1011	+)))
824	824
	1013	+(((
	1014	+The uplink screen shot is:
	1015	+)))
825	825
826		-* Downlink Payload:
	1017	+(% 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" %)​
827	827
828		-0xAD 00   à Same as AT+DATAUP=0
829	829
830		-0xAD 01   à Same as AT+DATAUP=1
	1020	+* (((
	1021	+(% style="color:#037691" %)** Downlink Payload:**
	1022	+)))
831	831
	1024	+(((
	1025	+**0x09 aa bb** same as AT+CMDEAR=aa,bb
	1026	+)))
832	832
833		-==== Manually trigger an Uplink ====
834	834
835		-Ask device to send an uplink immediately.
836	836
837		-* Downlink Payload:
838	838
839		-0x08 FF, RS485-BL will immediately send an uplink.
	1031	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
840	840
	1033	+(((
	1034	+Set the Rs485 serial communication parameters:
	1035	+)))
841	841
842		-==== Clear RS485 Command ====
	1037	+* (((
	1038	+(% style="color:#037691" %)** AT Command:**
	1039	+)))
843	843
844		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	1041	+(((
	1042	+
845	845
	1044	+* Set Baud Rate
	1045	+)))
846	846
847		-* AT Command:
	1047	+**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
848	848
849		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
850	850
851		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1050	+(((
	1051	+* Set UART Parity
	1052	+)))
852	852
853		-Example screen shot after clear all RS485 commands.
	1054	+**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
854	854
855	855
	1057	+(((
	1058	+* Set STOPBIT
	1059	+)))
856	856
857		-The uplink screen shot is:
	1061	+**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
858	858
859		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
860	860
861	861
862		-* Downlink Payload:
	1065	+* (((
	1066	+(% style="color:#037691" %)** Downlink Payload:**
	1067	+)))
863	863
864		-0x09 aa bb same as AT+CMDEAR=aa,bb
	1069	+(((
	1070	+**A7 01 aa bb**:  Same  AT+BAUDR=hex(aa bb)*100
	1071	+)))
865	865
	1073	+(((
	1074	+**Example:**
	1075	+)))
866	866
867		-==== Set Serial Communication Parameters ====
	1077	+* (((
	1078	+A7 01 00 60   same as AT+BAUDR=9600
	1079	+)))
	1080	+* (((
	1081	+A7 01 04 80  same as AT+BAUDR=115200
	1082	+)))
868	868
869		-Set the Rs485 serial communication parameters:
	1084	+(((
	1085	+A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1086	+)))
870	870
871		-* AT Command:
	1088	+(((
	1089	+A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1090	+)))
872	872
873		-Set Baud Rate:
874	874
875		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
876	876
877	877
878		-Set UART parity
	1095	+== 3.6 Listening mode for RS485 network ==
879	879
880		-AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1097	+(((
	1098	+This feature support since firmware v1.4
	1099	+)))
881	881
	1101	+(((
	1102	+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.
	1103	+)))
882	882
883		-Set STOPBIT
	1105	+(% 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" %)​
884	884
885		-AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1107	+(((
	1108	+To enable the listening mode, use can run the command AT+RXMODE.
	1109	+)))
886	886
	1111	+(((
	1112	+
	1113	+)))
887	887
888		-* Downlink Payload:
	1115	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
	1116	+|=(% style="width: 100px;" %)(((
	1117	+**Command example**
	1118	+)))|=(% style="width: 400px;" %)(((
	1119	+**Function**
	1120	+)))
	1121	+|(% style="width:100px" %)(((
	1122	+AT+RXMODE=1,10
	1123	+)))|(% style="width:400px" %)(((
	1124	+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.
	1125	+)))
	1126	+|(% style="width:100px" %)(((
	1127	+AT+RXMODE=2,500
	1128	+)))|(% style="width:400px" %)(((
	1129	+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
	1130	+)))
	1131	+|(% style="width:100px" %)(((
	1132	+AT+RXMODE=0,0
	1133	+)))|(% style="width:400px" %)(((
	1134	+Disable listening mode. This is the default settings.
	1135	+)))
	1136	+|(% style="width:100px" %)(((
	1137	+
	1138	+)))|(% style="width:400px" %)(((
	1139	+A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
	1140	+)))
889	889
890		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
	1142	+(((
	1143	+(% style="color:#037691" %)** Downlink Command:**
	1144	+)))
891	891
892		-Example:
	1146	+(((
	1147	+**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
	1148	+)))
893	893
894		-* A7 01 00 60   same as AT+BAUDR=9600
895		-* A7 01 04 80  same as AT+BAUDR=115200
	1150	+(((
	1151	+
	1152	+)))
896	896
897		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1154	+(((
	1155	+**Example**:
	1156	+)))
898	898
899		-A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1158	+(((
	1159	+The RS485-LN is set to AT+RXMODE=2,1000
	1160	+)))
900	900
	1162	+(((
	1163	+There is a two Modbus commands in the RS485 network as below:
	1164	+)))
901	901
902		-==== Control output power duration ====
	1166	+(((
	1167	+The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1168	+)))
903	903
904		-User can set the output power duration before each sampling.
	1170	+(((
	1171	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1172	+)))
905	905
906		-* AT Command:
	1174	+(((
	1175	+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
	1176	+)))
907	907
908		-Example:
	1178	+(((
	1179	+(% 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" %)​
	1180	+)))
909	909
910		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
	1182	+(((
	1183	+
	1184	+)))
911	911
912		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
	1186	+(((
	1187	+(((
	1188	+(% 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.
	1189	+)))
	1190	+)))
913	913
914	914
915		-* LoRaWAN Downlink Command:
	1193	+== 3.7 Buttons ==
916	916
917		-07 01 aa bb  Same as AT+5VT=(aa bb)
918	918
919		-07 02 aa bb  Same as AT+3V3T=(aa bb)
	1196	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1197	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
	1198	+|(% 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**
	1199	+|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
	1200	+|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
920	920
921	921
922	922
923	923
924		-1.
925		-11. Buttons
	1205	+== 3.8 LEDs ==
926	926
927		-|**Button**|**Feature**
928		-|**RST**|Reboot RS485-BL
929	929
930		-1.
931		-11. +3V3 Output
	1208	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1209	+|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
	1210	+|**PWR**|Always on if there is power
	1211	+|**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.
932	932
933		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
934	934
935		-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.
936	936
937	937
938		-The +3V3 output time can be controlled by AT Command.
	1216	+= 4. Case Study =
939	939
940		-**AT+3V3T=1000**
	1218	+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]]
941	941
942		-Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
943	943
	1221	+= 5. Use AT Command =
944	944
945		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
	1223	+== 5.1 Access AT Command ==
946	946
	1225	+(((
	1226	+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.
	1227	+)))
947	947
948		-1.
949		-11. +5V Output
	1229	+(% 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" %)​
950	950
951		-RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
952	952
953		-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.
	1232	+(((
	1233	+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:
	1234	+)))
954	954
	1236	+(% 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" %)​
955	955
956		-The 5V output time can be controlled by AT Command.
957	957
958		-**AT+5VT=1000**
	1239	+(((
	1240	+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/]]
	1241	+)))
959	959
960		-Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
961	961
962	962
963		-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.
	1245	+== 5.2 Common AT Command Sequence ==
964	964
965	965
	1248	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
966	966
	1250	+If device has not joined network yet:
967	967
968		-1.
969		-11. LEDs
	1252	+* (% style="color:#037691" %)**AT+FDR**
	1253	+* (% style="color:#037691" %)**AT+NJM=0**
	1254	+* (% style="color:#037691" %)**ATZ**
970	970
971		-|**LEDs**|**Feature**
972		-|**LED1**|Blink when device transmit a packet.
	1256	+(((
	1257	+
973	973
974		-1.
975		-11. Switch Jumper
	1259	+If device already joined network:
976	976
977		-|**Switch Jumper**|**Feature**
978		-|**SW1**|(((
979		-ISP position: Upgrade firmware via UART
	1261	+* (% style="color:#037691" %)**AT+NJM=0**
	1262	+* (% style="color:#037691" %)**ATZ**
980	980
981		-Flash position: Configure device, check running status.
	1264	+
982	982	)))
983		-|**SW2**|(((
984		-5V position: set to compatible with 5v I/O.
985	985
986		-3.3v position: set to compatible with 3.3v I/O.,
987		-)))
988	988
989		-+3.3V: is always ON
	1268	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
990	990
991		-+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
992	992
993		-1. Case Study
	1271	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
994	994
995		-User can check this URL for some case studies.
	1273	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
996	996
997		-[[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]]
	1275	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
998	998
	1277	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
999	999
	1279	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1000	1000
	1281	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1001	1001
1002		-1. Use AT Command
1003		-11. Access AT Command
	1283	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1004	1004
1005		-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.
	1285	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1006	1006
1007		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
	1287	+(% 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.
1008	1008
	1289	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1009	1009
1010		-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:
1011	1011
1012		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
	1292	+(% style="color:red" %)**Note:**
1013	1013
	1294	+(((
	1295	+(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1296	+2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1297	+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.
	1298	+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
	1299	+)))
1014	1014
	1301	+(% 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" %)​
1015	1015
1016		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1017	1017
	1304	+= 6. FAQ =
1018	1018
	1306	+== 6.1 How to upgrade the image? ==
1019	1019
1020		-1.
1021		-11. Common AT Command Sequence
1022		-111. Multi-channel ABP mode (Use with SX1301/LG308)
	1308	+(((
	1309	+The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	1310	+)))
1023	1023
1024		-If device has not joined network yet:
	1312	+* (((
	1313	+Support new features
	1314	+)))
	1315	+* (((
	1316	+For bug fix
	1317	+)))
	1318	+* (((
	1319	+Change LoRaWAN bands.
	1320	+)))
1025	1025
1026		-AT+FDR
	1322	+(((
	1323	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1324	+)))
1027	1027
1028		-AT+NJM=0
	1326	+(% 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"]](% title="Click and drag to resize" %)​
1029	1029
1030		-ATZ
	1328	+(((
	1329	+(% 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]].
	1330	+)))
1031	1031
	1332	+(((
	1333	+(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
	1334	+)))
1032	1032
1033		-If device already joined network:
	1336	+(((
	1337	+(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
	1338	+)))
1034	1034
1035		-AT+NJM=0
	1340	+(((
	1341	+(((
	1342	+(((
	1343	+(% 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.
	1344	+)))
	1345	+)))
	1346	+)))
1036	1036
1037		-ATZ
1038	1038
1039		-1.
1040		-11.
1041		-111. Single-channel ABP mode (Use with LG01/LG02)
	1349	+(% 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" %)​
1042	1042
1043		-AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1044	1044
1045		-AT+NJM=0 Set to ABP mode
	1352	+(% 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" %)​
1046	1046
1047		-AT+ADR=0 Set the Adaptive Data Rate Off
1048	1048
1049		-AT+DR=5  Set Data Rate
	1355	+(% 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" %)​
1050	1050
1051		-AT+TDC=60000  Set transmit interval to 60 seconds
1052	1052
1053		-AT+CHS=868400000 Set transmit frequency to 868.4Mhz
	1358	+(% 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:
1054	1054
1055		-AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
	1360	+(% 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" %)​
1056	1056
1057		-AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1058	1058
1059		-AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
	1363	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
1060	1060
1061		-ATZ          Reset MCU
	1365	+User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1062	1062
1063		-**Note:**
1064	1064
1065		-1. Make sure the device is set to ABP mode in the IoT Server.
1066		-1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1067		-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.
1068		-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
	1368	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
1069	1069
1070		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
	1370	+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"]].
1071	1071
1072	1072
1073		-1. FAQ
1074		-11. How to upgrade the image?
	1373	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1075	1075
1076		-The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
	1375	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1077	1077
1078		-* Support new features
1079		-* For bug fix
1080		-* Change LoRaWAN bands.
	1377	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1081	1081
1082		-Below shows the hardware connection for how to upload an image to RS485-BL:
1083	1083
1084		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
	1380	+== 6.5 Can i use point to point communication for RS485-LN? ==
1085	1085
1086		-**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]].
	1382	+Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1087	1087
1088		-**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1089	1089
1090		-**Step3: **Open flashloader; choose the correct COM port to update.
	1385	+= 7. Trouble Shooting =
1091	1091
	1387	+== 7.1 Downlink doesn't work, how to solve it? ==
1092	1092
1093		-|(((
1094		-HOLD PRO then press the RST button, SYS will be ON, then click next
1095		-)))
	1389	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1096	1096
1097		-|(((
1098		-Board detected
1099		-)))
1100	1100
1101		-|(((
1102		-
1103		-)))
	1392	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1104	1104
1105		-[[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]]
	1394	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1106	1106
1107	1107
	1397	+= 8. Order Info =
1108	1108
1109		-[[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]]
	1399	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1110	1110
	1401	+(% style="color:blue" %)**XXX:**
1111	1111
1112		-[[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]]
	1403	+* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
	1404	+* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
	1405	+* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
	1406	+* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
	1407	+* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
	1408	+* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
	1409	+* (% style="color:red" %)**US915**(%%):  frequency bands US915
	1410	+* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
	1411	+* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
	1412	+* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1113	1113
1114	1114
1115		-1.
1116		-11. How to change the LoRa Frequency Bands/Region?
1117	1117
1118		-User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1119	1119
	1417	+= 9.Packing Info =
1120	1120
1121	1121
1122		-1.
1123		-11. How many RS485-Slave can RS485-BL connects?
	1420	+**Package Includes**:
1124	1124
1125		-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]].
	1422	+* RS485-LN x 1
	1423	+* Stick Antenna for LoRa RF part x 1
	1424	+* Program cable x 1
1126	1126
	1426	+**Dimension and weight**:
1127	1127
	1428	+* Device Size: 13.5 x 7 x 3 cm
	1429	+* Device Weight: 105g
	1430	+* Package Size / pcs : 14.5 x 8 x 5 cm
	1431	+* Weight / pcs : 170g
1128	1128
1129	1129
1130		-1. Trouble Shooting
1131		-11. Downlink doesn’t work, how to solve it?
1132	1132
1133		-Please see this link for debug:
1134	1134
1135		-[[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]]
	1436	+= 10. FCC Caution for RS485LN-US915 =
1136	1136
	1438	+(((
	1439	+Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1440	+)))
1137	1137
	1442	+(((
	1443	+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.
	1444	+)))
1138	1138
1139		-1.
1140		-11. Why I can’t join TTN V3 in US915 /AU915 bands?
	1446	+(((
	1447	+
	1448	+)))
1141	1141
1142		-It might about the channels mapping. Please see for detail.
	1450	+(((
	1451	+(% style="color:red" %)**IMPORTANT NOTE:**
	1452	+)))
1143	1143
1144		-[[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]]
	1454	+(((
	1455	+**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:
	1456	+)))
1145	1145
	1458	+(((
	1459	+—Reorient or relocate the receiving antenna.
	1460	+)))
1146	1146
	1462	+(((
	1463	+—Increase the separation between the equipment and receiver.
	1464	+)))
1147	1147
1148		-1. Order Info
	1466	+(((
	1467	+—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1468	+)))
1149	1149
1150		-**Part Number: RS485-BL-XXX**
	1470	+(((
	1471	+—Consult the dealer or an experienced radio/TV technician for help.
	1472	+)))
1151	1151
1152		-**XXX:**
	1474	+(((
	1475	+
	1476	+)))
1153	1153
1154		-* **EU433**: frequency bands EU433
1155		-* **EU868**: frequency bands EU868
1156		-* **KR920**: frequency bands KR920
1157		-* **CN470**: frequency bands CN470
1158		-* **AS923**: frequency bands AS923
1159		-* **AU915**: frequency bands AU915
1160		-* **US915**: frequency bands US915
1161		-* **IN865**: frequency bands IN865
1162		-* **RU864**: frequency bands RU864
1163		-* **KZ865: **frequency bands KZ865
	1478	+(((
	1479	+(% style="color:red" %)**FCC Radiation Exposure Statement:**
	1480	+)))
1164	1164
1165		-1. Packing Info
	1482	+(((
	1483	+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.
	1484	+)))
1166	1166
1167		-**Package Includes**:
1168	1168
1169		-* RS485-BL x 1
1170		-* Stick Antenna for LoRa RF part x 1
1171		-* Program cable x 1
1172	1172
1173		-**Dimension and weight**:
	1488	+= 11. Support =
1174	1174
1175		-* Device Size: 13.5 x 7 x 3 cm
1176		-* Device Weight: 105g
1177		-* Package Size / pcs : 14.5 x 8 x 5 cm
1178		-* Weight / pcs : 170g
1179		-
1180		-1. Support
1181		-
1182		-* 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.
1183		-* 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
1184		-
1185		-[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
	1490	+* (((
	1491	+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.
	1492	+)))
	1493	+* (((
	1494	+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]].
	1495	+)))

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