Version 117.1 by Mengting Qiu on 2024/09/25 14:40
Show last authors
1 (% aria-label="1653266934636-343.png image widget" contenteditable="false" role="region" tabindex="-1" %)
2 (((
3 (% data-widget="image" style="text-align:center" %)
4 [[image:1653266934636-343.png||height="385" width="385"]](% title="Click and drag to resize" %)​
5
6 (% 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==||height="15" role="presentation" title="Click and drag to move" width="15"]]
7 )))
8
9
10
11
12
13
14
15 **Table of Contents:**
16
17 {{toc/}}
18
19
20 (% aria-label="macro:toc widget" contenteditable="false" role="region" tabindex="-1" %)
21 (((
22 (% 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==||height="15" role="presentation" title="Click and drag to move" width="15"]]
23 )))
24
25
26
27
28
29
30
31 = 1. Introduction =
32
33 == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
34
35
36 (((
37 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.
38 )))
39
40 (((
41 RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
42 )))
43
44 (((
45 (% 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.
46 )))
47
48 (((
49 (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
50 )))
51
52 (((
53 (% 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]]
54 )))
55
56
57 (% aria-label="1653267211009-519.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653267211009-519.png||data-widget="image" height="419" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
58
59
60 == 1.2 Specifications ==
61
62
63 (% style="color:#037691" %)**Hardware System:**
64
65 * STM32L072xxxx MCU
66 * SX1276/78 Wireless Chip 
67 * Power Consumption (exclude RS485 device):
68 ** Idle: 32mA@12v
69 ** 20dB Transmit: 65mA@12v
70
71 (% style="color:#037691" %)**Interface for Model:**
72
73 * RS485
74 * Power Input 7~~ 24V DC. 
75
76 (% style="color:#037691" %)**LoRa Spec:**
77
78 * Frequency Range:
79 ** Band 1 (HF): 862 ~~ 1020 Mhz
80 ** Band 2 (LF): 410 ~~ 528 Mhz
81 * 168 dB maximum link budget.
82 * +20 dBm - 100 mW constant RF output vs.
83 * +14 dBm high efficiency PA.
84 * Programmable bit rate up to 300 kbps.
85 * High sensitivity: down to -148 dBm.
86 * Bullet-proof front end: IIP3 = -12.5 dBm.
87 * Excellent blocking immunity.
88 * Low RX current of 10.3 mA, 200 nA register retention.
89 * Fully integrated synthesizer with a resolution of 61 Hz.
90 * FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
91 * Built-in bit synchronizer for clock recovery.
92 * Preamble detection.
93 * 127 dB Dynamic Range RSSI.
94 * Automatic RF Sense and CAD with ultra-fast AFC.
95 * Packet engine up to 256 bytes with CRC
96
97 == 1.3 Features ==
98
99
100 * LoRaWAN Class A & Class C protocol (default Class C)
101 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
102 * AT Commands to change parameters
103 * Remote configure parameters via LoRa Downlink
104 * Firmware upgradable via program port
105 * Support multiply RS485 devices by flexible rules
106 * Support Modbus protocol
107 * Support Interrupt uplink (Since hardware version v1.2)
108
109 == 1.4 Applications ==
110
111
112 * Smart Buildings & Home Automation
113 * Logistics and Supply Chain Management
114 * Smart Metering
115 * Smart Agriculture
116 * Smart Cities
117 * Smart Factory
118
119 == 1.5 Firmware Change log ==
120
121
122 [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
123
124
125 == 1.6 Hardware Change log ==
126
127
128 (((
129 (((
130 (((
131 v1.2: Add External Interrupt Pin.
132 )))
133
134 (((
135 v1.0: Release
136 )))
137
138
139 )))
140 )))
141
142 = 2. Power ON Device =
143
144
145 (((
146 The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
147
148 * Power Source VIN to RS485-LN VIN+
149 * Power Source GND to RS485-LN VIN-
150
151 (((
152 Once there is power, the RS485-LN will be on.
153 )))
154
155 (% aria-label="1653268091319-405.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268091319-405.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
156
157
158 )))
159
160 = 3. Operation Mode =
161
162 == 3.1 How it works? ==
163
164
165 (((
166 (((
167 The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
168 )))
169
170
171 )))
172
173 == 3.2 Example to join LoRaWAN network ==
174
175
176 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. 
177
178
179 (% aria-label="1653268155545-638.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268155545-638.png||data-widget="image" height="334" 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" %)​
180
181
182 (((
183 (((
184 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:
185 )))
186
187 (((
188 485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
189
190
191 )))
192
193 (% aria-label="1653268227651-549.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268227651-549.png||data-widget="image" height="592" width="720"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
194
195
196 (((
197 The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
198
199
200 )))
201
202 (((
203 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
204 )))
205
206 (((
207 Each RS485-LN is shipped with a sticker with unique device EUI:
208 )))
209 )))
210
211 (% 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"]][[image:image-20230425175410-2.png]](% title="Click and drag to resize" %)​
212
213
214 (((
215 (((
216 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
217
218
219 )))
220
221 (((
222 **Add APP EUI in the application.**
223 )))
224 )))
225
226 (% aria-label="image-20220519174512-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
227
228 (% aria-label="image-20220519174512-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-2.png||data-widget="image" height="323" width="720"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
229
230 (% aria-label="image-20220519174512-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-3.png||data-widget="image" height="556" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
231
232 (% aria-label="image-20220519174512-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
233
234
235 (% title="Click and drag to resize" %)​
236
237 You can also choose to create the device manually.
238
239 (% aria-label="1652953542269-423.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953542269-423.png||data-widget="image" height="710" width="723"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
240
241
242
243 **Add APP KEY and DEV EUI**
244
245 (% aria-label="1652953553383-907.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953553383-907.png||data-widget="image" height="514" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
246
247
248 (((
249 (% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
250
251
252 )))
253
254 (% aria-label="1652953568895-172.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953568895-172.png||data-widget="image" height="232" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
255
256
257 == 3.3 Configure Device to Read RS485 Sensors ==
258
259
260 There are plenty of RS485 and TTL level devices in the market and each device has different commands to read the valid data. To support these devices in most flexible, RS485-LN supports flexible command set. User can use [[Dragino RS485 Tool>>url:https://www.dropbox.com/sh/us9qecn39fwt8n1/AABREdqUCzEmJMRrfuWuXasoa?dl=0]],  [[AT Commands or LoRaWAN Downlink>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-LB_Waterproof_RS485UART_to_LoRaWAN_Converter/#H3.5ConfigureRS485-LBviaATorDownlink]] Command to configure how RS485-LN should read the sensor and how to handle the return from RS485 or TTL sensors.
261
262
263 (((
264 (((
265 (((
266 (% style="color:red" %)**Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1**
267 )))
268
269
270 === 3.3.1 Method 1 ~-~- via RS485 Configure Tool ===
271
272
273 Use the RS485 Configure tool is the recommand method. Please see the instruction of how to use the tool:
274
275 * **[[RS485 Configure Tool Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/RS485_Configure_Tool/]]**
276
277 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-LB_Waterproof_RS485UART_to_LoRaWAN_Converter/WebHome/image-20231127144411-1.png?width=494&height=368&rev=1.1||alt="image-20231127144411-1.png" height="368" width="494"]]
278
279
280 === 3.3.2  Method 2 ~-~- via AT Commands ===
281 )))
282 )))
283
284 ==== 3.3.2.1 Configure UART settings for RS485 communication ====
285
286
287 To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. The related commands for UART settings are:
288
289 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
290 |=(% style="width: 126px; background-color:#4F81BD;color:white" %)(((
291 **AT Commands**
292 )))|=(% style="width: 187px; background-color:#4F81BD;color:white" %)(((
293 **Description**
294 )))|=(% style="width: 197px;background-color:#4F81BD;color:white" %)(((
295 **Example**
296 )))
297 |(% style="width:126px" %)(((
298
299
300 (((
301 AT+BAUDR
302 )))
303 )))|(% style="width:177px" %)(((
304 Set the baud rate (for RS485 connection). Default Value is: 9600.
305 )))|(% style="width:193px" %)(((
306 (((
307 AT+BAUDR=9600
308 )))
309
310 (((
311 Options: (1200,2400,4800,
312 14400,19200,115200)
313 )))
314 )))
315 |(% style="width:126px" %)(((
316 AT+PARITY
317 )))|(% style="width:177px" %)(((
318 Set UART parity (for RS485 connection)
319 )))|(% style="width:193px" %)(((
320 (((
321 AT+PARITY=0
322 )))
323
324 (((
325 Option: 0: no parity,
326 1: odd parity,
327 2: even parity
328 )))
329 )))
330 |(% style="width:126px" %)(((
331 AT+STOPBIT
332 )))|(% style="width:177px" %)(((
333 (((
334 Set serial stopbit (for RS485 connection)
335 )))
336 )))|(% style="width:193px" %)(((
337 (((
338 AT+STOPBIT=0 for 1bit
339 )))
340
341 (((
342 AT+STOPBIT=1 for 1.5 bit
343 )))
344
345 (((
346 AT+STOPBIT=2 for 2 bits
347 )))
348 )))
349
350 === 3.3.3 Configure sensors ===
351
352
353 (((
354 Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
355 )))
356
357 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
358 |=(% style="width: 122px; background-color:#4F81BD;color:white" %)**AT Commands**|=(% style="width: 198px; background-color:#4F81BD;color:white" %)**Description**|=(% style="width: 190px;background-color:#4F81BD;color:white" %)**Example**
359 |(% style="width:122px" %)AT+CFGDEV|(% style="width:196px" %)(((
360 (((
361 This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
362 )))
363
364 (((
365 AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
366 )))
367
368 (((
369 mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
370 )))
371 )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
372
373 === 3.3.4 Configure read commands for each sampling ===
374
375
376 (((
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.
378
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.
380
381 This section describes how to achieve above goals.
382
383 During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
384
385
386 (% style="color:#037691" %)**Each RS485 commands include two parts:**
387
388
389 ~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.
390
391 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.
392
393 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
394
395
396 After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
397
398 Below are examples for the how above AT Commands works.
399
400
401 (% style="color:#037691" %)**AT+COMMANDx **(%%)**: **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
402
403 (% border="1" style="background-color:#f2f2f2; width:499px" %)
404 |(% style="width:496px" %)(((
405 **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
406
407 **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
408
409 **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
410 )))
411
412 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.
413
414 In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
415
416
417 If a single command exceeds 14 bytes, you can use the command splicing function.
418
419 When AT+CMDDLx=1, the commands of AT+COMMANDx and AT+COMMAND(x+1) will be merged.
420
421
422 **Examples:** To send 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F data it should be configured:
423
424 AT+COMMAND1=00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D,0
425
426 AT+COMMAND1=1
427
428 AT+COMMAND2=0E 0F,0
429
430
431 (% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
432
433 (% border="1" style="background-color:#f2f2f2; width:510px" %)
434 |(% style="width:510px" %)(((
435 **AT+DATACUTx=a,b,c**
436
437 * **a: length for the return of AT+COMMAND**
438 * **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
439 * **c: define the position for valid value.  **
440 )))
441
442 **Examples:**
443
444
445 * (% style="color:#037691" %)**Grab bytes**
446
447 (% aria-label="image-20220602153621-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
448
449
450
451 * (% style="color:#037691" %)**Grab a section**
452
453 (% aria-label="image-20220602153621-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-2.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
454
455
456
457 * (% style="color:#037691" %)**Grab different sections**
458
459 (% aria-label="image-20220602153621-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-3.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
460
461
462 )))
463
464 === 3.3.5 Compose the uplink payload ===
465
466
467 (((
468 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.**
469
470
471 )))
472
473 (((
474 (% style="color:#037691" %)**Examples: AT+DATAUP=0**
475
476
477 )))
478
479 (((
480 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
481 )))
482
483 (((
484 Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
485 )))
486
487 (((
488 Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
489
490
491 )))
492
493 [[image:image-20220929111027-1.png||height="509" width="685"]](% title="Click and drag to resize" %)​
494
495
496 (% style="color:#037691" %)**Examples: AT+DATAUP=1**
497
498
499 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
500
501 Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
502
503
504 ~1. PAYVER: Defined by AT+PAYVER
505
506 2. PAYLOAD COUNT: Total how many uplinks of this sampling.
507
508 3. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
509
510 4. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
511
512
513 (% aria-label="image-20220602155039-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602155039-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
514
515
516 So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
517
518 DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
519
520 DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
521
522 DATA3=the rest of Valid value of RETURN10= **30**
523
524
525 (% style="color:red" %)**Notice: In firmware v1.3, the Max bytes has been changed according to the max bytes in different Frequency Bands for lowest SF. As below:**
526
527
528 ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
529
530 * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
531
532 * For US915 band, max 11 bytes for each uplink.
533
534 ~* For all other bands: max 51 bytes for each uplink.
535
536
537 (% style="color:red" %)** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
538
539 (% style="color:red" %)** When AT+DATAUP=1 and AT+ADR=0, the maximum number of bytes of each payload is determined by the DR value. (Since v1.4.0)**
540
541
542
543 Below are the uplink payloads:
544
545
546 (% aria-label="1654157178836-407.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157178836-407.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
547
548
549 === 3.3.6 Uplink on demand ===
550
551
552 Except uplink periodically, RS485-LN is able to uplink on demand. The server send downlink command to RS485-LN and RS485 will uplink data base on the command.
553
554 (% style="color:blue" %)**Downlink control command:**
555
556 (% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
557
558 (% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
559
560
561 === 3.3.7 Uplink on Interrupt ===
562
563
564 RS485-LN support external Interrupt uplink since hardware v1.2 release.
565
566 (% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
567
568 Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
569
570
571 == 3.4 Uplink Payload ==
572
573
574 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
575 |(% style="background-color:#4f81bd; color:white; width:70px" %)(((
576 **Size(bytes)**
577 )))|(% style="background-color:#4f81bd; color:white; width:80px" %)**1**|(% style="background-color:#4f81bd; color:white; width:360px" %)(((
578 **Length depends on the return from the commands**
579 )))
580 |(% style="width:90px" %)(((
581 Value
582 )))|(% style="width:114px" %)(((
583 PAYLOAD_VER
584 )))|(% style="width:353px" %)(((
585 If the valid payload is too long and exceed the maximum
586
587 support payload length in server, server will show payload not
588
589 provided in the LoRaWAN server.
590 )))
591
592 (% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](%%)Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
593
594
595 == 3.5 Configure RS485-LN via AT or Downlink ==
596
597
598 (((
599 User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
600 )))
601
602 (((
603 There are two kinds of Commands:
604 )))
605
606 * (((
607 (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
608 )))
609
610 * (((
611 (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
612 )))
613
614 (((
615
616 )))
617
618
619 === 3.5.1 Common Commands ===
620
621
622 They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
623
624
625 === 3.5.2 Downlink Response(Since firmware v1.4) ===
626
627
628 Response feature is added to the server's downlink, a special package with a FPort of 200 will be uploaded immediately after receiving the data sent by the server.
629
630
631 (% aria-label="image-20220602163333-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602163333-5.png||data-widget="image" height="263" width="1160"]]
632
633 (% title="Click and drag to resize" %)​
634
635 The first byte of this package represents whether the configuration is successful, 00 represents failure, 01 represents success. Except for the first byte, the other is the previous downlink. (All commands except A8 type commands are applicable)
636
637
638 === 3.5.3 Sensor related commands ===
639
640
641
642 ==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
643
644
645 (((
646 This command is used to configure the RS485 devices; they won't be used during sampling. Max Length of AT+CFGDEV is **40 bytes**.
647 )))
648
649 (((
650 * (% style="color:#037691" %)**AT Command**
651
652 (((
653 (% style="color:#4472c4" %)** AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**  (%%) m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
654 )))
655 )))
656
657 (((
658
659 )))
660
661 * (((
662 (% style="color:#037691" %)**Downlink Payload**
663 )))
664
665 (((
666 Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
667 )))
668
669 (((
670 Where:
671 )))
672
673 * (((
674 MM: 1: add CRC-16/MODBUS ; 0: no CRC
675 )))
676 * (((
677 NN: The length of RS485 command
678 )))
679 * (((
680 XX XX XX XX: RS485 command total NN bytes
681 )))
682 * (((
683 (((
684 YY: How many bytes will be uplink from the return of this RS485 command,
685 )))
686
687 * (((
688 if YY=0, RS485-LN will execute the downlink command without uplink;
689 )))
690 * (((
691 if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
692 )))
693 * (((
694 if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
695 )))
696 )))
697
698 (((
699
700
701 (% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
702 )))
703
704 (((
705 To connect a Modbus Alarm with below commands.
706 )))
707
708 * (((
709 The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
710 )))
711
712 * (((
713 The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
714 )))
715
716 (((
717
718
719 So if user want to use downlink command to control to RS485 Alarm, he can use:
720 )))
721
722 (((
723 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
724 )))
725
726 (((
727 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
728 )))
729
730 (((
731 A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
732 )))
733
734 (((
735
736 )))
737
738 (((
739 (% style="color:blue" %)**Example 2:**  (%%)
740 )))
741
742 (((
743 Check TTL Sensor return:
744 )))
745
746 (((
747 (((
748 [[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/1654132684752-193.png?rev=1.1||alt="1654132684752-193.png"]](% title="Click and drag to resize" %)​
749 )))
750 )))
751
752
753
754 ==== (% style="color:blue" %)**Set Payload version**(%%) ====
755
756
757 (((
758 This is the first byte of the uplink payload. RS485-LN can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
759 )))
760
761 (((
762 * (% style="color:#037691" %)**AT Command:**
763
764 (% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
765
766
767 )))
768
769 * (((
770 (% style="color:#037691" %)**Downlink Payload:**
771 )))
772
773 (((
774 (% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
775 )))
776
777 (((
778 (% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
779 )))
780
781
782 **1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)**
783
784
785 [[image:image-20220824145428-2.png||height="168" width="1300"]]
786
787
788
789 **2 )  if the data intercepted by AT+DATACUT or AT+MBFUN is empty, it will display NULL, and the payload will be filled with n FFs.**
790
791
792 [[image:image-20220824145428-3.png||height="308" width="1200"]]
793
794
795
796 ==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
797
798
799 (((
800 AT+COMMANDx or AT+DATACUTx
801 )))
802
803 (((
804 These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
805 )))
806
807 (((
808
809 )))
810
811 * (((
812 (% style="color:#037691" %)**AT Command:**
813 )))
814
815 (% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
816
817 (% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
818
819
820 * (((
821 (% style="color:#037691" %)**Downlink Payload:**
822 )))
823
824 (((
825 (% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
826
827
828 )))
829
830 (((
831 (% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
832
833
834 )))
835
836 (((
837 Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
838 )))
839
840 (((
841 Where:
842 )))
843
844 * (((
845 MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
846 )))
847 * (((
848 NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
849 )))
850 * (((
851 LL:  The length of AT+COMMAND or AT+DATACUT command
852 )))
853 * (((
854 XX XX XX XX: AT+COMMAND or AT+DATACUT command
855 )))
856 * (((
857 YY:  If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
858 )))
859
860 (((
861
862
863 **Example:**
864 )))
865
866 (((
867 (% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
868 )))
869
870 (((
871 (% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
872 )))
873
874 (((
875 (% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
876 )))
877
878
879
880 ==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
881
882
883 (((
884 (% style="color:#4472c4" %)** AT+MBFUN**(%%) is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
885 )))
886
887 (((
888 This command is valid since v1.3 firmware version
889 )))
890
891 (((
892 AT+MBFUN can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
893 )))
894
895 (((
896
897 )))
898
899 (((
900 **Example:**
901 )))
902
903 * (((
904 AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
905 )))
906 * (((
907 AT+COMMAND1= 01 03 00 10 00 08,1  ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
908 )))
909 * (((
910 AT+COMMAND2= 01 02 00 40 00 10,1  ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
911
912
913 )))
914
915 (% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]]
916
917 (% title="Click and drag to resize" %)​
918
919 (% aria-label="image-20220602165351-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-7.png||data-widget="image"]](% title="Click and drag to resize" %)​
920
921 * (((
922 (% style="color:#037691" %)**Downlink Command:**
923 )))
924
925 **~ (% style="color:#4472c4" %)A9 aa(%%)** ~-~-> Same as AT+MBFUN=aa
926
927
928 ==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
929
930
931 (((
932 Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action.
933 )))
934
935 (((
936 Default value: 0, range:  0 ~~ 65 seconds
937 )))
938
939 (((
940 * (% style="color:#037691" %)** AT Command:**
941
942 (% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
943 )))
944
945 (((
946
947
948 **Example:**
949 )))
950
951 (((
952 (% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
953 )))
954
955 (((
956
957 )))
958
959 * (((
960 (% style="color:#037691" %)** Downlink Payload:**
961 )))
962
963 (((
964 (% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex (bb cc)
965 )))
966
967 (((
968
969
970 **Example:**
971 )))
972
973 (((
974 **0xAA 01 03 E8**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
975 )))
976
977
978
979 ==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
980
981
982 (((
983 Define to use one uplink or multiple uplinks for the sampling.
984 )))
985
986 (((
987 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
988
989
990 )))
991
992 (((
993 * (% style="color:#037691" %)** AT Command:**
994
995 (% style="color:#4472c4" %)** AT+DATAUP=0**
996
997 (% style="color:#4472c4" %)** AT+DATAUP=1**
998
999
1000 )))
1001
1002 (% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
1003
1004 Each uplink is sent to the server at 20-second intervals when segmented.
1005
1006
1007 * (((
1008 (% style="color:#037691" %)** Downlink Payload:**
1009 )))
1010
1011 (% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
1012
1013 (% style="color:#4472c4" %)** 0xAD 01**  (%%) **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
1014
1015
1016 (Since firmware v1.4.0)
1017
1018 * (((
1019 (% style="color:#037691" %)** AT Command:**
1020 )))
1021
1022 (% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
1023
1024
1025 * (((
1026 (% style="color:#037691" %)** Downlink Payload:**
1027 )))
1028
1029 (% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
1030
1031 Each uplink is sent to the server at 20-second intervals when segmented.
1032
1033
1034 ==== (% style="color:blue" %)**Cut data separation processing(Since Version 1.4.2)**(%%) ====
1035
1036
1037 AT+NEWLINE command, which only takes effect when AT+DATAUP=1 or AT+DATAUP=1, timeout.
1038
1039 When not set, each part of AT+DATAUP is sent according to the maximum number of bytes of DR.
1040
1041 When setting, each part of AT+DATAUP is sent according to the value set by AT+NEWLINE.
1042
1043
1044 * (((
1045 (% style="color:#037691" %)** AT Command:**
1046 )))
1047
1048 (% style="color:#4472c4" %)//**AT+NEWLINE=ALL**//(%%)//   //The data cut out by each AT+COMMANDx command is sent separately as an uplink.
1049
1050 (% style="color:#4472c4" %)//**AT+NEWLINE=ALL**//(%%)//   equal：  (% style="color:#4472c4" %)**AT+NEWLINE=1+2+3+4+5+6+7+8+9+10+11+12+13+14+15**//
1051
1052
1053 (% style="color:#4472c4" %)//**AT+NEWLINE=a+b+c**//(%%)//  //The data returned by all commands is divided into three parts, COMMAND(1~~a) is the first part, COMMAND(a+1~~b) is the second part,COMMAND(b+1~~c) is the third part.
1054
1055
1056 (% style="color:#4472c4" %)//**AT+NEWLINE=NULL**//(%%)//  //Turn off the functionality of this AT command.
1057
1058
1059 * (((
1060 (% style="color:#037691" %)** Downlink Payload:**
1061 )))
1062
1063 //AT+NEWLINE=ALL  ~-~-->  (% style="color:#4472c4" %)**0xAC 01**//
1064
1065 // AT+NEWLINE= NULL  ~-~-->  (% style="color:#4472c4" %)**0xAC 00**//
1066
1067 //AT+NEWLINE= a+b+c   ~-~-->  (% style="color:#4472c4" %)**0xAC number of bytes a b c**//
1068
1069 //AT+NEWLINE= 1+5+15 ~-~-->  (% style="color:#4472c4" %)**0xAC 03 01 05 0F**//
1070
1071
1072 ==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
1073
1074
1075 (((
1076 Ask device to send an uplink immediately.
1077 )))
1078
1079 * (((
1080 (% style="color:#037691" %)** AT Command:**
1081 )))
1082
1083 (((
1084 No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
1085 )))
1086
1087 (((
1088
1089 )))
1090
1091 * (((
1092 (% style="color:#037691" %)** Downlink Payload:**
1093 )))
1094
1095 (((
1096 (% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
1097 )))
1098
1099
1100
1101 ==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
1102
1103
1104 (((
1105 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
1106
1107
1108 )))
1109
1110 * (((
1111 (% style="color:#037691" %)** AT Command:**
1112 )))
1113
1114 (((
1115 (% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
1116 )))
1117
1118 (((
1119
1120
1121 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1122 )))
1123
1124 (((
1125 Example screen shot after clear all RS485 commands. 
1126 )))
1127
1128 (((
1129
1130 )))
1131
1132 (((
1133 The uplink screen shot is:
1134 )))
1135
1136 (% aria-label="1654160691922-496.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654160691922-496.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1137
1138
1139 * (((
1140 (% style="color:#037691" %)** Downlink Payload:**
1141 )))
1142
1143 (((
1144 (% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
1145 )))
1146
1147
1148
1149 ==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
1150
1151
1152 (((
1153 Set the Rs485 serial communication parameters:
1154 )))
1155
1156 (((
1157 (% style="color:#037691" %)**AT Command:**
1158 )))
1159
1160 (((
1161 * Set Baud Rate
1162 )))
1163
1164 (% style="color:#4472c4" %)** AT+BAUDR=9600** (%%) ~/~/  Options: (200~~115200)  When using low baud rate or receiving multiple bytes, you need to use AT+CMDDL to increase the receive timeout (the default receive timeout is 400ms), otherwise data will be lost
1165
1166
1167 (((
1168 * Set UART Parity
1169 )))
1170
1171 (% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
1172
1173
1174 (((
1175 * Set STOPBIT
1176 )))
1177
1178 (% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1179
1180
1181 (((
1182 (% style="color:#037691" %)**Downlink Payload:**
1183 )))
1184
1185 (((
1186 (% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
1187 )))
1188
1189 (((
1190 **Example:**
1191 )))
1192
1193 * (((
1194 A7 01 00 60  same as AT+BAUDR=9600
1195 )))
1196 * (((
1197 A7 01 04 80  same as AT+BAUDR=115200
1198 )))
1199
1200 (((
1201 * A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1202 )))
1203
1204 (((
1205 * A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1206 )))
1207
1208
1209
1210
1211 ==== (% style="color:blue" %)**Configure Databit (Since Version 1.4.0)**(%%) ====
1212
1213
1214 * (((
1215 (% style="color:#037691" %)** AT Command:**
1216 )))
1217
1218 (% style="color:#4472c4" %)** AT+DATABIT=7    **(%%)~/~/ Set the data bits to 7
1219
1220 (% style="color:#4472c4" %)** AT+DATABIT=8    **(%%)~/~/ Set the data bits to 8
1221
1222 * (((
1223 (% style="color:#037691" %)**Downlink Payload:**
1224 )))
1225
1226 (% style="color:#4472c4" %)** A7 04 07**(%%): Same as  AT+DATABIT=7
1227
1228 (% style="color:#4472c4" %)** A7 04 08**(%%): Same as  AT+DATABIT=8
1229
1230
1231
1232 ==== (% style="color:blue" %)**Encrypted payload(Since Version 1.4.0)**(%%) ====
1233
1234 (((
1235
1236 )))
1237
1238 * (((
1239 (% style="color:#037691" %)** AT Command:**
1240 )))
1241
1242 (% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
1243
1244 (% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
1245
1246
1247
1248 ==== (% style="color:blue" %)**Get sensor value(Since Version 1.4.0)**(%%) ====
1249
1250
1251 * (((
1252 (% style="color:#037691" %)** AT Command:**
1253 )))
1254
1255 (% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
1256
1257 (% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
1258
1259
1260
1261 ==== (% style="color:blue" %)**Resets the downlink packet count(Since Version 1.4.0)**(%%) ====
1262
1263
1264 * (((
1265 (% style="color:#037691" %)** AT Command:**
1266 )))
1267
1268 (% style="color:#4472c4" %)** AT+DISFCNTCHECK=0  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
1269
1270 (% style="color:#4472c4" %)** AT+DISFCNTCHECK=1  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
1271
1272
1273
1274 ==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches(Since Version 1.4.0)**(%%) ====
1275
1276
1277 * (((
1278 (% style="color:#037691" %)** AT Command:**
1279 )))
1280
1281 (% style="color:#4472c4" %)** AT+DISMACANS=0**  (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
1282
1283 (% style="color:#4472c4" %)** AT+DISMACANS=1**   (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
1284
1285
1286 * (((
1287 (% style="color:#037691" %)** Downlink Payload:**
1288 )))
1289
1290 (% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
1291
1292
1293
1294 ==== (% style="color:blue" %)**Copy downlink to uplink (Since Version 1.4.0)**(%%) ====
1295
1296
1297 * (((
1298 (% style="color:#037691" %)** AT Command:**
1299 )))
1300
1301 (% style="color:#4472c4" %)** AT+RPL=5**  (%%) ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
1302
1303 Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
1304
1305
1306 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
1307
1308 For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1309
1310
1311
1312 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
1313
1314 For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1315
1316
1317
1318 ==== (% style="color:blue" %)**Query version number and frequency band 、TDC(Since Version 1.4.0)**(%%) ====
1319
1320
1321 (((
1322 * (% style="color:#037691" %)**Downlink Payload:**
1323
1324 (% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1325 )))
1326
1327
1328 Example：
1329
1330
1331 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
1332
1333
1334
1335 ==== (% style="color:blue" %)** Monitor RS485 communication of other devices(Since Version 1.4.0)**(%%) ====
1336
1337
1338 * (((
1339 (% style="color:#037691" %)** AT Command:**
1340 )))
1341
1342 (% style="color:#4472c4" %)**AT+RXMODE=1,10**    (%%) ~/~/ When the RS485-LN receives more than 10 bytes from the RS485, it immediately sends the uplink of the received data.
1343
1344 (% style="color:#4472c4" %)**AT+RXMODE=2,500    ** (%%) ~/~/  RS485-LN uploads data as uplink from the first byte received by RS485 to the data received within 500ms after that.
1345
1346 (% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
1347
1348
1349 * (((
1350 (% style="color:#037691" %)**Downlink Payload:**
1351 )))
1352
1353 (% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/ same as AT+RXMODE=aa,bb
1354
1355 [[image:image-20220824144240-1.png]]
1356
1357
1358 == 3.6 Listening mode for RS485 network ==
1359
1360
1361 (((
1362 This feature support since firmware v1.4
1363 )))
1364
1365 (((
1366 RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
1367
1368
1369 )))
1370
1371 (% aria-label="image-20220602171200-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-8.png||data-widget="image" height="567" width="1007"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
1372
1373 (% title="Click and drag to resize" %)​
1374
1375 (((
1376 To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
1377 )))
1378
1379 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1380 |=(% style="width: 156px; background-color:#4F81BD;color:white" %)(((
1381 **Command example**
1382 )))|=(% style="width: 355px; background-color:#4F81BD;color:white" %)(((
1383 **Function**
1384 )))
1385 |(% style="width:156px" %)(((
1386 AT+RXMODE=1,10
1387 )))|(% style="width:352px" %)(((
1388 Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
1389 )))
1390 |(% style="width:156px" %)(((
1391 AT+RXMODE=2,500
1392 )))|(% style="width:352px" %)(((
1393 Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
1394 )))
1395 |(% style="width:156px" %)(((
1396 AT+RXMODE=0,0
1397 )))|(% style="width:352px" %)(((
1398 Disable listening mode. This is the default settings.
1399 )))
1400 |(% style="width:156px" %)(((
1401
1402 )))|(% style="width:352px" %)(((
1403 A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1404 )))
1405
1406 (((
1407
1408
1409 (% style="color:#037691" %)**Downlink Command:**
1410 )))
1411
1412 (((
1413 (% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
1414 )))
1415
1416 (((
1417
1418 )))
1419
1420 (((
1421 **Example**:
1422 )))
1423
1424 (((
1425 The RS485-LN is set to AT+RXMODE=2,1000
1426 )))
1427
1428 (((
1429 There is a two Modbus commands in the RS485 network as below:
1430 )))
1431
1432 (((
1433 The Modbus master send a command: (% style="background-color:#ffc000" %)**01 03 00 00 00 02 c4 0b**
1434 )))
1435
1436 (((
1437 And Modbus slave reply with: (% style="background-color:green" %)**01 03 04 00 00 00 00 fa 33**
1438 )))
1439
1440 (((
1441 RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)**01 03 00 00 00 02 c4 0b  **(% style="background-color:green" %)**01 03 04 00 00 00 00 fa 33**
1442
1443
1444 )))
1445
1446 (((
1447 (% aria-label="image-20220602171200-9.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-9.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1448 )))
1449
1450
1451
1452 (((
1453 (% style="color:red" %)**Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.**
1454 )))
1455
1456
1457 == 3.7 Buttons ==
1458
1459
1460 (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1461 |=(% style="width: 50px;background-color:#4F81BD;color:white" %)**Button**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1462 |(% style="width:50px" %)ACT|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1463 |(% style="width:50px" %)RST|(% style="width:361px" %)Reboot RS485
1464 |(% style="width:50px" %)PRO|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1465
1466 == 3.8 LEDs ==
1467
1468
1469 (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1470 |=(% style="width: 50px;background-color:#4F81BD;color:white" %)**LEDs**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1471 |PWR|Always on if there is power
1472 |SYS|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
1473
1474 = 4. Case Study =
1475
1476
1477 User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
1478
1479
1480 = 5. Use AT Command =
1481
1482 == 5.1 Access AT Command ==
1483
1484
1485 (((
1486 RS485-LN supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-LN to use AT command, as below.
1487
1488
1489 )))
1490
1491 (% aria-label="1654162355560-817.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162355560-817.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1492
1493
1494
1495 (((
1496 In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-LN. The default password is 123456. Below is the output for reference:
1497
1498
1499 )))
1500
1501 (% aria-label="1654162368066-342.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162368066-342.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1502
1503
1504 (((
1505 More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1506 )))
1507
1508
1509 == 5.2 Common AT Command Sequence ==
1510
1511 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1512
1513
1514 If device has not joined network yet:
1515
1516 * (% style="color:#037691" %)**AT+FDR**
1517 * (% style="color:#037691" %)**AT+NJM=0**
1518 * (% style="color:#037691" %)**ATZ**
1519
1520 (((
1521
1522
1523 If device already joined network:
1524
1525 * (% style="color:#037691" %)**AT+NJM=0**
1526 * (% style="color:#037691" %)**ATZ**
1527 )))
1528
1529
1530
1531 === 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1532
1533
1534 (% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1535
1536 (% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1537
1538 (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1539
1540 (% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1541
1542 (% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1543
1544 (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1545
1546 (% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1547
1548 (% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1549
1550 (% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1551
1552 (% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1553
1554
1555 (% style="color:red" %)**Note:**
1556
1557 (((
1558 (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1559 2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1560 3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1561 4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1562
1563
1564 )))
1565
1566 (% aria-label="1654162478620-421.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162478620-421.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1567
1568
1569 = 6. FAQ =
1570
1571 == 6.1 How to upgrade the image? ==
1572
1573
1574 (((
1575 The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1576 )))
1577
1578 * (((
1579 Support new features
1580 )))
1581 * (((
1582 For bug fix
1583 )))
1584 * (((
1585 Change LoRaWAN bands.
1586 )))
1587
1588 (((
1589 Below shows the hardware connection for how to upload an image to RS485-LN:
1590 )))
1591
1592 (% aria-label="1654162535040-878.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162535040-878.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
1593
1594 (% title="Click and drag to resize" %)​
1595
1596 (((
1597 (% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1598
1599
1600 )))
1601
1602 (((
1603 (% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]].
1604
1605
1606 )))
1607
1608 (((
1609 (% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1610
1611
1612 )))
1613
1614 (((
1615 (((
1616 (((
1617 (% style="color:blue" %) Hold down the PRO button and then momentarily press the RST reset button and the SYS led will change from OFF to ON, While SYS LED is RED ON, it means the RS485-LN is ready to be program.
1618 )))
1619 )))
1620 )))
1621
1622
1623 (% aria-label="image-20220602175818-12.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175818-12.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1624
1625
1626 (% aria-label="image-20220602175848-13.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175848-13.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1627
1628
1629 (% aria-label="image-20220602175912-14.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175912-14.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1630
1631
1632
1633 (% style="color:red" %)**Users can select the new burning software STM32Cubeprogramer for firmware upgrade and follow the same connection steps to enter burning mode (until SYS LED is RED ON):**
1634
1635 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H4.2.FirmwareupgradeusingSTM32Cubeprogramer>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H4.2.FirmwareupgradeusingSTM32Cubeprogramer]]
1636
1637
1638 (% style="color:red" %)**Notice**: **In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:**
1639
1640 (% aria-label="image-20220602175638-10.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175638-10.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1641
1642
1643 == 6.2 How to change the LoRa Frequency Bands/Region? ==
1644
1645
1646 User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1647
1648
1649 == 6.3 How many RS485-Slave can RS485-LN connects? ==
1650
1651
1652 The RS485-LN can support max 32 RS485 devices. Each uplink command of RS485-LN can support max 16 different RS485 command. So RS485-LN can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
1653
1654
1655 == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1656
1657
1658 When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1659
1660 Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1661
1662
1663 == 6.5 Can i use point to point communication for RS485-LN? ==
1664
1665
1666 Yes, please updating point-to-point [[firmware>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]]，then refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1667
1668
1669 == 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1670
1671
1672 [[Use RS485-BL or RS485-LN to connect to RS232 devices. - DRAGINO>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/RS485%20to%20RS232/]]
1673
1674
1675 == 6.7 How to judge whether there is a problem with the set COMMAND ==
1676
1677 === 6.7.1 Introduce: ===
1678
1679
1680 Users can use below the structure to fast debug the communication between RS485BL and RS485-LN. The principle is to put the PC in the RS485 network and sniff the packet between Modbus MTU and RS485-BL/LN. We can use this way to:
1681
1682 1. Test if Modbus-MTU works with PC commands.
1683 1. Check if RS485-LN sent the expected command to Mobus-MTU
1684 1. Check if Modbus-MTU return back the expected result to RS485-LN.
1685 1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1686
1687 [[image:image-20240816112950-1.png||height="382" width="731"]]
1688
1689
1690 Example Connection:
1691
1692 [[image:image-20221130104310-2.png]]
1693
1694
1695 === 6.7.2 Set up PC to monitor RS485 network With Serial tool ===
1696
1697
1698 (% style="color:red" %)**Note: Receive and send set to hex mode**
1699
1700 [[image:image-20221130104310-3.png||height="616" width="714"]]
1701
1702
1703 === 6.7.3 With ModRSsim2: ===
1704
1705
1706 (% style="color:blue" %)**(1) Select serial port MODBUS RS-232**
1707
1708 [[image:image-20221130104310-4.png||height="390" width="865"]]
1709
1710
1711 (% style="color:blue" %)**(2) Click the serial port icon**
1712
1713 [[image:image-20221130104310-5.png||height="392" width="870"]]
1714
1715
1716 (% style="color:blue" %)**(3) After selecting the correct serial port and baud rate, click ok**
1717
1718 [[image:image-20221130104310-6.png]]
1719
1720
1721 (% style="color:blue" %)**(4) Click the comms.**
1722
1723 [[image:image-20221130104310-7.png||height="376" width="835"]]
1724
1725 (% class="wikigeneratedid" id="HRunRS485-LN2FBLcommandandmonitorifitiscorrect." %)
1726 **Run RS485-LN/BL command and monitor if it is correct.**
1727
1728
1729 === 6.7.4 Example – Test the CFGDEV command ===
1730
1731
1732 RS485-LN sent below command:
1733
1734 (% style="color:blue" %)**AT+CFGDEV=01 03 00 20 00 01,1**(%%) to RS485 network, and PC is able to get this command and return commands from MTU to show in the serial tool.
1735
1736
1737 We can see the output from the Serial port tool to analyze. And check if they are expected result.
1738
1739 [[image:image-20221130104310-8.png||height="214" width="797"]]
1740
1741
1742 We can also use (% style="color:blue" %)**ModRSsim2**(%%) to see the output.
1743
1744 [[image:image-20221130104310-9.png||height="531" width="729"]]
1745
1746
1747 === 6.7.5 Example – Test CMD command sets. ===
1748
1749
1750 Run (% style="color:blue" %)**AT+SENSORVALUE=1**(%%) to test the CMD commands set in RS485-LN.
1751
1752
1753 (% style="color:blue" %)**Serial port tool:**
1754
1755 [[image:image-20221130104310-10.png||height="339" width="844"]]
1756
1757
1758 (% style="color:blue" %)**ModRSsim2:**
1759
1760 [[image:image-20221130104310-11.png||height="281" width="962"]]
1761
1762
1763 === 6.7.6 Test with PC ===
1764
1765
1766 If there is still have problem to set up correctly the commands between RS485-LN and MTU. User can test the correct RS485 command set in PC and compare with the RS485 command sent out via RS485-LN. as long as both commands are the same, the MTU should return correct result.
1767
1768
1769 Or User can send the working commands set in PC serial tool to Dragino Support to check what should be configured in RS485-LN.
1770
1771 (% style="color:blue" %)**Connection method：**
1772
1773 [[image:image-20221130104310-12.png]]
1774
1775
1776 (% style="color:blue" %)**Link situation:**
1777
1778 [[image:image-20221130104310-13.png||height="458" width="486"]]
1779
1780
1781 [[image:image-20221130104310-14.png||height="371" width="823"]]
1782
1783
1784 == 6.8 Where to get the decoder for RS485-LN? ==
1785
1786
1787 The decoder for RS485-LN needs to be written by yourself. Because the sensor to which the user is connected is custom, the read device data bytes also need custom parsing, so there is no universal decoder. We can only provide [[templates>>https://github.com/dragino/dragino-end-node-decoder/tree/main/RS485-LN]] for decoders (no intermediate data parsing part involved)
1788
1789
1790 == 6.9 How to configure RS485 commands more conveniently？ ==
1791
1792
1793 Dragino has developed an application for the RS485 series of products.
1794
1795 It can help you configure RS485 sensors more conveniently
1796 Please refer to the link below for specific usage：
1797
1798 [[RS485 Configure Tool - DRAGINO>>url:http://wiki.dragino.com/xwiki/bin/view/Main/RS485_Configure_Tool/#HTableofContentsFF1A]]
1799
1800
1801 = 7. Trouble Shooting =
1802
1803 == 7.1 Downlink doesn't work, how to solve it? ==
1804
1805
1806 Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1807
1808
1809 == 7.2 Why customers can't join TTN V3 in US915 /AU915 bands? ==
1810
1811
1812 It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1813
1814
1815 == 7.3 Why can't customers see the device's data in the server when the data is too long? ==
1816
1817 This is due to the limitation of the lorawan protocol, and the fixed DR needs to be adjusted to improve this problem.
1818
1819 Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1820
1821 [[lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf>>url:https://lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf]]
1822
1823 Example:
1824
1825 [[image:image-20240620145456-1.png]]
1826
1827 Please refer to the following command to fix DR
1828
1829 AT+ADR=0
1830
1831 AT+DR=3
1832
1833 Downlink command:
1834
1835 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate]]
1836
1837
1838
1839 = 8. Order Info =
1840
1841
1842 (% style="color:blue" %)**Part Number: RS485-LN-XXX**
1843
1844 (% style="color:blue" %)**XXX:**
1845
1846 * (% style="color:red" %)**EU433**(%%):  frequency bands EU433
1847 * (% style="color:red" %)**EU868**(%%):  frequency bands EU868
1848 * (% style="color:red" %)**KR920**(%%):  frequency bands KR920
1849 * (% style="color:red" %)**CN470**(%%):  frequency bands CN470
1850 * (% style="color:red" %)**AS923**(%%):  frequency bands AS923
1851 * (% style="color:red" %)**AU915**(%%):  frequency bands AU915
1852 * (% style="color:red" %)**US915**(%%):  frequency bands US915
1853 * (% style="color:red" %)**IN865**(%%):  frequency bands IN865
1854 * (% style="color:red" %)**RU864**(%%):  frequency bands RU864
1855 * (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1856
1857 = 9. Packing Info =
1858
1859
1860 **Package Includes**:
1861
1862 * RS485-LN x 1
1863 * Stick Antenna for LoRa RF part x 1
1864 * Program cable x 1
1865
1866 **Dimension and weight**:
1867
1868 * Device Size: 13.5 x 7 x 3 cm
1869 * Device Weight: 105g
1870 * Package Size / pcs : 14.5 x 8 x 5 cm
1871 * Weight / pcs : 170g
1872
1873 = 10. FCC Caution for RS485LN-US915 =
1874
1875
1876 (((
1877 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1878 )))
1879
1880 (((
1881 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
1882 )))
1883
1884 (((
1885
1886 )))
1887
1888 (((
1889 (% style="color:red" %)**IMPORTANT NOTE:**
1890 )))
1891
1892 (((
1893 (% style="color:red" %)**Note: **(%%)This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
1894 )))
1895
1896 (((
1897 —Reorient or relocate the receiving antenna.
1898 )))
1899
1900 (((
1901 —Increase the separation between the equipment and receiver.
1902 )))
1903
1904 (((
1905 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1906 )))
1907
1908 (((
1909 —Consult the dealer or an experienced radio/TV technician for help.
1910 )))
1911
1912 (((
1913
1914 )))
1915
1916 (((
1917 (% style="color:red" %)**FCC Radiation Exposure Statement:**
1918 )))
1919
1920 (((
1921 This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
1922 )))
1923
1924
1925 = 11. Support =
1926
1927
1928 * (((
1929 Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1930 )))
1931 * (((
1932 Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
1933
1934
1935
1936 )))

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0