Version 102.17 by Xiaoling on 2023/04/25 14:14
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, smartphone detection, 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
98
99 == 1.3 Features ==
100
101
102 * LoRaWAN Class A & Class C protocol (default Class C)
103 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
104 * AT Commands to change parameters
105 * Remote configure parameters via LoRa Downlink
106 * Firmware upgradable via program port
107 * Support multiply RS485 devices by flexible rules
108 * Support Modbus protocol
109 * Support Interrupt uplink (Since hardware version v1.2)
110
111
112
113 == 1.4 Applications ==
114
115
116 * Smart Buildings & Home Automation
117 * Logistics and Supply Chain Management
118 * Smart Metering
119 * Smart Agriculture
120 * Smart Cities
121 * Smart Factory
122
123
124
125 == 1.5 Firmware Change log ==
126
127
128 [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
129
130
131 == 1.6 Hardware Change log ==
132
133
134 (((
135 (((
136 (((
137 v1.2: Add External Interrupt Pin.
138 )))
139
140 (((
141 v1.0: Release
142 )))
143
144
145 )))
146 )))
147
148 = 2. Power ON Device =
149
150
151 (((
152 The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
153
154 * Power Source VIN to RS485-LN VIN+
155 * Power Source GND to RS485-LN VIN-
156
157 (((
158 Once there is power, the RS485-LN will be on.
159 )))
160
161 (% 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" %)​
162
163
164 )))
165
166 = 3. Operation Mode =
167
168 == 3.1 How it works? ==
169
170
171 (((
172 (((
173 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.
174 )))
175
176
177 )))
178
179 == 3.2 Example to join LoRaWAN network ==
180
181
182 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. 
183
184
185 (% 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" %)​
186
187
188 (((
189 (((
190 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:
191 )))
192
193 (((
194 485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
195
196
197 )))
198
199 (% 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" %)​
200
201
202 (((
203 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:
204
205
206 )))
207
208 (((
209 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
210 )))
211
212 (((
213 Each RS485-LN is shipped with a sticker with unique device EUI:
214 )))
215 )))
216
217 (% aria-label="1652953462722-299.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953462722-299.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" %)​
218
219
220 (((
221 (((
222 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
223
224
225 )))
226
227 (((
228 **Add APP EUI in the application.**
229 )))
230 )))
231
232 (% 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" %)​
233
234 (% 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" %)​
235
236 (% 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" %)​
237
238 (% 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"]]
239
240
241 (% title="Click and drag to resize" %)​
242
243 You can also choose to create the device manually.
244
245 (% 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" %)​
246
247
248
249 **Add APP KEY and DEV EUI**
250
251 (% 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" %)​
252
253
254
255 (((
256 (% 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.
257
258
259 )))
260
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" %)​
262
263
264 == 3.3 Configure Commands to read data ==
265
266
267 (((
268 (((
269 (((
270 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.
271
272
273 )))
274 )))
275
276 (((
277 (((
278 (% 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**
279 )))
280
281
282 )))
283 )))
284
285 === 3.3.1 Configure UART settings for RS485 or TTL communication ===
286
287
288 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:
289
290 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
291 |=(% style="width: 126px; background-color:#D9E2F3;color:#0070C0" %)(((
292 **AT Commands**
293 )))|=(% style="width: 187px; background-color:#D9E2F3;color:#0070C0" %)(((
294 **Description**
295 )))|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)(((
296 **Example**
297 )))
298 |(% style="width:126px" %)(((
299
300
301 (((
302 AT+BAUDR
303 )))
304 )))|(% style="width:177px" %)(((
305 Set the baud rate (for RS485 connection). Default Value is: 9600.
306 )))|(% style="width:193px" %)(((
307 (((
308 AT+BAUDR=9600
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 Option: 0: no parity,
325 1: odd parity,
326 2: even parity
327 )))
328 )))
329 |(% style="width:126px" %)(((
330 AT+STOPBIT
331 )))|(% style="width:177px" %)(((
332 (((
333 Set serial stopbit (for RS485 connection)
334 )))
335
336 (((
337
338 )))
339 )))|(% style="width:193px" %)(((
340 (((
341 AT+STOPBIT=0 for 1bit
342 )))
343 (((
344 AT+STOPBIT=1 for 1.5 bit
345 )))
346 (((
347 AT+STOPBIT=2 for 2 bits
348 )))
349 )))
350
351 === 3.3.2 Configure sensors ===
352
353
354 (((
355 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.
356 )))
357
358 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
359 |=(% style="width: 122px; background-color:#D9E2F3;color:#0070C0" %)**AT Commands**|=(% style="width: 198px; background-color:#D9E2F3;color:#0070C0" %)**Description**|=(% style="width: 190px;background-color:#D9E2F3;color:#0070C0" %)**Example**
360 |(% style="width:122px" %)AT+CFGDEV|(% style="width:196px" %)(((
361 (((
362 This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
363 )))
364
365 (((
366 AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
367 )))
368
369 (((
370 mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
371 )))
372 )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
373
374 === 3.3.3 Configure read commands for each sampling ===
375
376
377 (((
378 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.
379
380 To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
381
382 This section describes how to achieve above goals.
383
384 During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
385
386
387 (% style="color:#037691" %)**Each RS485 commands include two parts:**
388
389
390 ~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.
391
392 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.
393
394 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
395
396
397 After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
398
399 Below are examples for the how above AT Commands works.
400
401
402 (% 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:
403
404 (% border="1" style="background-color:#f2f2f2; width:499px" %)
405 |(% style="width:496px" %)(((
406 **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
407
408 **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
409
410 **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
411 )))
412
413 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.
414
415 In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
416
417
418 (% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
419
420 (% border="1" style="background-color:#f2f2f2; width:510px" %)
421 |(% style="width:510px" %)(((
422 **AT+DATACUTx=a,b,c**
423
424 * **a: length for the return of AT+COMMAND**
425 * **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
426 * **c: define the position for valid value.  **
427 )))
428
429 **Examples:**
430
431
432 * (% style="color:#037691" %)**Grab bytes**
433
434 (% 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" %)​
435
436
437
438 * (% style="color:#037691" %)**Grab a section**
439
440 (% 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" %)​
441
442
443
444 * (% style="color:#037691" %)**Grab different sections**
445
446 (% 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" %)​
447
448
449 )))
450
451 === 3.3.4 Compose the uplink payload ===
452
453
454 (((
455 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.**
456
457
458 )))
459
460 (((
461 (% style="color:#037691" %)**Examples: AT+DATAUP=0**
462
463
464 )))
465
466 (((
467 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
468 )))
469
470 (((
471 Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
472 )))
473
474 (((
475 Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
476
477
478 )))
479
480 [[image:image-20220929111027-1.png||height="509" width="685"]](% title="Click and drag to resize" %)​
481
482
483 (% style="color:#037691" %)**Examples: AT+DATAUP=1**
484
485
486 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
487
488 Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
489
490
491 ~1. PAYVER: Defined by AT+PAYVER
492
493 2. PAYLOAD COUNT: Total how many uplinks of this sampling.
494
495 3. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
496
497 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
498
499
500 (% 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" %)​
501
502
503 So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
504
505 DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
506
507 DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
508
509 DATA3=the rest of Valid value of RETURN10= **30**
510
511
512 (% 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:**
513
514
515 ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
516
517 * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
518
519 * For US915 band, max 11 bytes for each uplink.
520
521 ~* For all other bands: max 51 bytes for each uplink.
522
523
524 (% style="color:red" %)** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
525
526 (% 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)**
527
528
529
530 Below are the uplink payloads:
531
532
533 (% 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" %)​
534
535
536 === 3.3.5 Uplink on demand ===
537
538
539 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.
540
541 (% style="color:blue" %)**Downlink control command:**
542
543 (% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
544
545 (% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
546
547
548 === 3.3.6 Uplink on Interrupt ===
549
550
551 RS485-LN support external Interrupt uplink since hardware v1.2 release.
552
553
554 (% 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" %)​
555
556 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.
557
558
559 == 3.4 Uplink Payload ==
560
561
562 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
563 |=(% scope="row" style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)(((
564 Size(bytes)
565 )))|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:360px" %)(((
566 **Length depends on the return from the commands**
567 )))
568 |=(% style="width: 90px;" %)(((
569 Value
570 )))|(% style="width:114px" %)(((
571 PAYLOAD_VER
572 )))|(% style="width:353px" %)(((
573 If the valid payload is too long and exceed the maximum
574
575 support payload length in server, server will show payload not
576
577 provided in the LoRaWAN server.
578 )))
579
580 (% 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"]]
581
582 (% title="Click and drag to resize" %)​
583
584 Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
585
586
587 == 3.5 Configure RS485-LN via AT or Downlink ==
588
589
590 (((
591 User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
592 )))
593
594 (((
595 There are two kinds of Commands:
596 )))
597
598 * (((
599 (% 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]]
600 )))
601
602 * (((
603 (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
604 )))
605
606 (((
607
608 )))
609
610
611 === 3.5.1 Common Commands ===
612
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: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
615
616
617 === 3.5.2 Downlink Response(Since firmware v1.4) ===
618
619
620 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.
621
622
623 (% 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"]]
624
625 (% title="Click and drag to resize" %)​
626
627 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)
628
629
630 === 3.5.3 Sensor related commands ===
631
632
633
634 ==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
635
636
637 (((
638 This command is used to configure the RS485 devices; they won't be used during sampling. Max Length of AT+CFGDEV is **40 bytes**.
639 )))
640
641 (((
642 * (% style="color:#037691" %)**AT Command**
643
644 (((
645 (% 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
646 )))
647 )))
648
649 (((
650
651 )))
652
653 * (((
654 (% style="color:#037691" %)**Downlink Payload**
655 )))
656
657 (((
658 Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
659 )))
660
661 (((
662 Where:
663 )))
664
665 * (((
666 MM: 1: add CRC-16/MODBUS ; 0: no CRC
667 )))
668 * (((
669 NN: The length of RS485 command
670 )))
671 * (((
672 XX XX XX XX: RS485 command total NN bytes
673 )))
674 * (((
675 (((
676 YY: How many bytes will be uplink from the return of this RS485 command,
677 )))
678
679 * (((
680 if YY=0, RS485-LN will execute the downlink command without uplink;
681 )))
682 * (((
683 if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
684 )))
685 * (((
686 if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
687 )))
688 )))
689
690 (((
691
692
693 (% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
694 )))
695
696 (((
697 To connect a Modbus Alarm with below commands.
698 )))
699
700 * (((
701 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.
702 )))
703
704 * (((
705 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.
706 )))
707
708 (((
709
710
711 So if user want to use downlink command to control to RS485 Alarm, he can use:
712 )))
713
714 (((
715 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
716 )))
717
718 (((
719 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
720 )))
721
722 (((
723 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.
724 )))
725
726 (((
727
728 )))
729
730 (((
731 (% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
732 )))
733
734 (((
735 User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
736 )))
737
738 (((
739
740 )))
741
742 (((
743 (((
744 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**
745 )))
746
747
748 )))
749
750 (((
751 (% 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" %)​
752 )))
753
754
755
756 ==== (% style="color:blue" %)**Set Payload version**(%%) ====
757
758
759 (((
760 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.
761 )))
762
763 (((
764 * (% style="color:#037691" %)**AT Command:**
765
766 (% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
767
768
769 )))
770
771 * (((
772 (% style="color:#037691" %)**Downlink Payload:**
773 )))
774
775 (((
776 (% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
777 )))
778
779 (((
780 (% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
781 )))
782
783
784 **1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)**
785
786
787 [[image:image-20220824145428-2.png||height="168" width="1300"]]
788
789
790
791 **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.**
792
793
794 [[image:image-20220824145428-3.png||height="308" width="1200"]]
795
796
797
798 ==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
799
800
801 (((
802 AT+COMMANDx or AT+DATACUTx
803 )))
804
805 (((
806 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"]].
807 )))
808
809 (((
810
811 )))
812
813 * (((
814 (% style="color:#037691" %)**AT Command:**
815 )))
816
817 (% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
818
819 (% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
820
821
822 * (((
823 (% style="color:#037691" %)**Downlink Payload:**
824 )))
825
826 (((
827 (% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
828
829
830 )))
831
832 (((
833 (% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
834
835
836 )))
837
838 (((
839 Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
840 )))
841
842 (((
843 Where:
844 )))
845
846 * (((
847 MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
848 )))
849 * (((
850 NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
851 )))
852 * (((
853 LL:  The length of AT+COMMAND or AT+DATACUT command
854 )))
855 * (((
856 XX XX XX XX: AT+COMMAND or AT+DATACUT command
857 )))
858 * (((
859 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.
860 )))
861
862 (((
863
864
865 **Example:**
866 )))
867
868 (((
869 (% 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
870 )))
871
872 (((
873 (% 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**
874 )))
875
876 (((
877 (% 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**
878 )))
879
880
881
882 ==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
883
884
885 (((
886 (% 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]].
887 )))
888
889 (((
890 This command is valid since v1.3 firmware version
891 )))
892
893 (((
894 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.
895 )))
896
897 (((
898
899 )))
900
901 (((
902 **Example:**
903 )))
904
905 * (((
906 AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
907 )))
908 * (((
909 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.
910 )))
911 * (((
912 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.
913
914
915 )))
916
917 (% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]]
918
919 (% title="Click and drag to resize" %)​
920
921 (% 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" %)​
922
923
924
925 ==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
926
927
928 (((
929 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.
930 )))
931
932 (((
933 Default value: 0, range:  0 ~~ 65 seconds
934 )))
935
936 (((
937 * (% style="color:#037691" %)** AT Command:**
938
939 (% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
940 )))
941
942 (((
943
944
945 **Example:**
946 )))
947
948 (((
949 (% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
950 )))
951
952 (((
953
954 )))
955
956 * (((
957 (% style="color:#037691" %)** Downlink Payload:**
958 )))
959
960 (((
961 (% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex (bb cc)
962 )))
963
964 (((
965
966
967 **Example:**
968 )))
969
970 (((
971 **0xAA 01 03 E8**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
972 )))
973
974
975
976 ==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
977
978
979 (((
980 Define to use one uplink or multiple uplinks for the sampling.
981 )))
982
983 (((
984 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
985
986
987 )))
988
989 (((
990 * (% style="color:#037691" %)** AT Command:**
991
992 (% style="color:#4472c4" %)** AT+DATAUP=0**
993
994 (% style="color:#4472c4" %)** AT+DATAUP=1**
995
996
997 )))
998
999 (% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
1000
1001 Each uplink is sent to the server at 20-second intervals when segmented.
1002
1003
1004 * (((
1005 (% style="color:#037691" %)** Downlink Payload:**
1006 )))
1007
1008 (% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
1009
1010 (% 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.
1011
1012
1013 * (((
1014 (% style="color:#037691" %)** AT Command:**
1015 )))
1016
1017 (% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
1018
1019
1020 * (((
1021 (% style="color:#037691" %)** Downlink Payload:**
1022 )))
1023
1024 (% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
1025
1026 Each uplink is sent to the server at 20-second intervals when segmented.
1027
1028
1029
1030 ==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
1031
1032
1033 (((
1034 Ask device to send an uplink immediately.
1035 )))
1036
1037 * (((
1038 (% style="color:#037691" %)** AT Command:**
1039 )))
1040
1041 (((
1042 No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
1043 )))
1044
1045 (((
1046
1047 )))
1048
1049 * (((
1050 (% style="color:#037691" %)** Downlink Payload:**
1051 )))
1052
1053 (((
1054 (% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
1055 )))
1056
1057
1058
1059 ==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
1060
1061
1062 (((
1063 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
1064
1065
1066 )))
1067
1068 * (((
1069 (% style="color:#037691" %)** AT Command:**
1070 )))
1071
1072 (((
1073 (% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
1074 )))
1075
1076 (((
1077
1078
1079 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1080 )))
1081
1082 (((
1083 Example screen shot after clear all RS485 commands. 
1084 )))
1085
1086 (((
1087
1088 )))
1089
1090 (((
1091 The uplink screen shot is:
1092 )))
1093
1094 (% 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" %)​
1095
1096
1097 * (((
1098 (% style="color:#037691" %)** Downlink Payload:**
1099 )))
1100
1101 (((
1102 (% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
1103 )))
1104
1105
1106
1107 ==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
1108
1109
1110 (((
1111 Set the Rs485 serial communication parameters:
1112 )))
1113
1114 (((
1115 (% style="color:#037691" %)**AT Command:**
1116 )))
1117
1118 (((
1119 * Set Baud Rate
1120 )))
1121
1122 (% 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
1123
1124
1125 (((
1126 * Set UART Parity
1127 )))
1128
1129 (% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
1130
1131
1132 (((
1133 * Set STOPBIT
1134 )))
1135
1136 (% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1137
1138
1139 (((
1140 (% style="color:#037691" %)**Downlink Payload:**
1141 )))
1142
1143 (((
1144 (% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
1145 )))
1146
1147 (((
1148 **Example:**
1149 )))
1150
1151 * (((
1152 A7 01 00 60  same as AT+BAUDR=9600
1153 )))
1154 * (((
1155 A7 01 04 80  same as AT+BAUDR=115200
1156 )))
1157
1158 (((
1159 * A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1160 )))
1161
1162 (((
1163 * A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1164 )))
1165
1166
1167
1168
1169 ==== (% style="color:blue" %)**Configure Databit (Since Version 1.4.0)**(%%) ====
1170
1171
1172 * (((
1173 (% style="color:#037691" %)** AT Command:**
1174 )))
1175
1176 (% style="color:#4472c4" %)** AT+DATABIT=7    **(%%)~/~/ Set the data bits to 7
1177
1178 (% style="color:#4472c4" %)** AT+DATABIT=8    **(%%)~/~/ Set the data bits to 8
1179
1180 * (((
1181 (% style="color:#037691" %)**Downlink Payload:**
1182 )))
1183
1184 (% style="color:#4472c4" %)** A7 04 07**(%%): Same as  AT+DATABIT=7
1185
1186 (% style="color:#4472c4" %)** A7 04 08**(%%): Same as  AT+DATABIT=8
1187
1188
1189
1190 ==== (% style="color:blue" %)**Encrypted payload(Since Version 1.4.0)**(%%) ====
1191
1192 (((
1193
1194 )))
1195
1196 * (((
1197 (% style="color:#037691" %)** AT Command:**
1198 )))
1199
1200 (% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
1201
1202 (% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
1203
1204
1205
1206 ==== (% style="color:blue" %)**Get sensor value(Since Version 1.4.0)**(%%) ====
1207
1208
1209 * (((
1210 (% style="color:#037691" %)** AT Command:**
1211 )))
1212
1213 (% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
1214
1215 (% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
1216
1217
1218
1219 ==== (% style="color:blue" %)**Resets the downlink packet count(Since Version 1.4.0)**(%%) ====
1220
1221
1222 * (((
1223 (% style="color:#037691" %)** AT Command:**
1224 )))
1225
1226 (% 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)
1227
1228 (% 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.
1229
1230
1231
1232 ==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches(Since Version 1.4.0)**(%%) ====
1233
1234
1235 * (((
1236 (% style="color:#037691" %)** AT Command:**
1237 )))
1238
1239 (% 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)
1240
1241 (% 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.
1242
1243
1244 * (((
1245 (% style="color:#037691" %)** Downlink Payload:**
1246 )))
1247
1248 (% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
1249
1250
1251
1252 ==== (% style="color:blue" %)**Copy downlink to uplink (Since Version 1.4.0)**(%%) ====
1253
1254
1255 * (((
1256 (% style="color:#037691" %)** AT Command:**
1257 )))
1258
1259 (% 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.
1260
1261 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.
1262
1263
1264 [[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"]]
1265
1266 For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1267
1268
1269
1270 [[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"]]
1271
1272 For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1273
1274
1275
1276 ==== (% style="color:blue" %)**Query version number and frequency band 、TDC(Since Version 1.4.0)**(%%) ====
1277
1278
1279 (((
1280 * (% style="color:#037691" %)**Downlink Payload:**
1281
1282 (% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1283 )))
1284
1285
1286 Example：
1287
1288
1289 [[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"]]
1290
1291
1292
1293 ==== (% style="color:blue" %)** Monitor RS485 communication of other devices(Since Version 1.4.0)**(%%) ====
1294
1295
1296 * (((
1297 (% style="color:#037691" %)** AT Command:**
1298 )))
1299
1300 (% 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.
1301
1302 (% 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.
1303
1304 (% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
1305
1306
1307 * (((
1308 (% style="color:#037691" %)**Downlink Payload:**
1309 )))
1310
1311 (% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/ same as AT+RXMODE=aa,bb
1312
1313 [[image:image-20220824144240-1.png]]
1314
1315
1316 == 3.6 Listening mode for RS485 network ==
1317
1318
1319 (((
1320 This feature support since firmware v1.4
1321 )))
1322
1323 (((
1324 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.
1325
1326
1327 )))
1328
1329 (% 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"]]
1330
1331 (% title="Click and drag to resize" %)​
1332
1333 (((
1334 To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
1335 )))
1336
1337
1338
1339 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
1340 |=(% style="width: 156px; background-color:#D9E2F3;color:#0070C0" %)(((
1341 **Command example**
1342 )))|=(% style="width: 355px; background-color:#D9E2F3;color:#0070C0" %)(((
1343 **Function**
1344 )))
1345 |(% style="width:156px" %)(((
1346 AT+RXMODE=1,10
1347 )))|(% style="width:352px" %)(((
1348 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.
1349 )))
1350 |(% style="width:156px" %)(((
1351 AT+RXMODE=2,500
1352 )))|(% style="width:352px" %)(((
1353 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
1354 )))
1355 |(% style="width:156px" %)(((
1356 AT+RXMODE=0,0
1357 )))|(% style="width:352px" %)(((
1358 Disable listening mode. This is the default settings.
1359 )))
1360 |(% style="width:156px" %)(((
1361
1362 )))|(% style="width:352px" %)(((
1363 A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1364 )))
1365
1366 (((
1367
1368
1369 (% style="color:#037691" %)**Downlink Command:**
1370 )))
1371
1372 (((
1373 (% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
1374 )))
1375
1376 (((
1377
1378 )))
1379
1380 (((
1381 **Example**:
1382 )))
1383
1384 (((
1385 The RS485-LN is set to AT+RXMODE=2,1000
1386 )))
1387
1388 (((
1389 There is a two Modbus commands in the RS485 network as below:
1390 )))
1391
1392 (((
1393 The Modbus master send a command: (% style="background-color:#ffc000" %)**01 03 00 00 00 02 c4 0b**
1394 )))
1395
1396 (((
1397 And Modbus slave reply with: (% style="background-color:green" %)**01 03 04 00 00 00 00 fa 33**
1398 )))
1399
1400 (((
1401 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**
1402
1403
1404 )))
1405
1406 (((
1407 (% 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" %)​
1408 )))
1409
1410
1411
1412 (((
1413 (% 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.**
1414 )))
1415
1416
1417 == 3.7 Buttons ==
1418
1419
1420 (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1421 |=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**Button**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
1422 |(% 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**
1423 |(% style="width:50px" %)RST|(% style="width:361px" %)Reboot RS485
1424 |(% style="width:50px" %)PRO|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1425
1426 == 3.8 LEDs ==
1427
1428
1429 (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1430 |=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**LEDs**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
1431 |PWR|Always on if there is power
1432 |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.
1433
1434 = 4. Case Study =
1435
1436
1437 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]]
1438
1439
1440 = 5. Use AT Command =
1441
1442 == 5.1 Access AT Command ==
1443
1444
1445 (((
1446 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.
1447
1448
1449 )))
1450
1451 (% 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" %)​
1452
1453
1454
1455 (((
1456 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:
1457
1458
1459 )))
1460
1461 (% 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" %)​
1462
1463
1464 (((
1465 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/]]
1466 )))
1467
1468
1469 == 5.2 Common AT Command Sequence ==
1470
1471 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1472
1473
1474 If device has not joined network yet:
1475
1476 * (% style="color:#037691" %)**AT+FDR**
1477 * (% style="color:#037691" %)**AT+NJM=0**
1478 * (% style="color:#037691" %)**ATZ**
1479
1480 (((
1481
1482
1483 If device already joined network:
1484
1485 * (% style="color:#037691" %)**AT+NJM=0**
1486 * (% style="color:#037691" %)**ATZ**
1487 )))
1488
1489
1490
1491 === 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1492
1493
1494 (% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1495
1496 (% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1497
1498 (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1499
1500 (% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1501
1502 (% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1503
1504 (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1505
1506 (% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1507
1508 (% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1509
1510 (% 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.
1511
1512 (% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1513
1514
1515 (% style="color:red" %)**Note:**
1516
1517 (((
1518 (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1519 2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1520 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.
1521 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
1522
1523
1524 )))
1525
1526 (% 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" %)​
1527
1528
1529 = 6. FAQ =
1530
1531 == 6.1 How to upgrade the image? ==
1532
1533
1534 (((
1535 The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1536 )))
1537
1538 * (((
1539 Support new features
1540 )))
1541 * (((
1542 For bug fix
1543 )))
1544 * (((
1545 Change LoRaWAN bands.
1546 )))
1547
1548 (((
1549 Below shows the hardware connection for how to upload an image to RS485-LN:
1550 )))
1551
1552 (% 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"]]
1553
1554 (% title="Click and drag to resize" %)​
1555
1556 (((
1557 (% 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]].
1558
1559
1560 )))
1561
1562 (((
1563 (% 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]].
1564
1565
1566 )))
1567
1568 (((
1569 (% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1570
1571
1572 )))
1573
1574 (((
1575 (((
1576 (((
1577 (% 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.
1578 )))
1579 )))
1580 )))
1581
1582
1583 (% 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" %)​
1584
1585
1586 (% 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" %)​
1587
1588
1589 (% 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" %)​
1590
1591
1592 (% 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:**
1593
1594 (% 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" %)​
1595
1596
1597 == 6.2 How to change the LoRa Frequency Bands/Region? ==
1598
1599
1600 User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1601
1602
1603 == 6.3 How many RS485-Slave can RS485-LN connects? ==
1604
1605
1606 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"]].
1607
1608
1609 == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1610
1611
1612 When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1613
1614 Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1615
1616
1617 == 6.5 Can i use point to point communication for RS485-LN? ==
1618
1619
1620 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]].
1621
1622
1623 == 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1624
1625
1626 [[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/]]
1627
1628
1629 == 6.7 How to judge whether there is a problem with the set COMMAND ==
1630
1631 === 6.7.1 Introduce: ===
1632
1633
1634 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:
1635
1636 1. Test if Modbus-MTU works with PC commands.
1637 1. Check if RS485-LN sent the expected command to Mobus-MTU
1638 1. Check if Modbus-MTU return back the expected result to RS485-LN.
1639 1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1640
1641 [[image:image-20221130104310-1.png||height="380" width="680"]]
1642
1643
1644 Example Connection:
1645
1646 [[image:image-20221130104310-2.png]]
1647
1648
1649 === 6.7.2 Set up PC to monitor RS485 network With Serial tool ===
1650
1651
1652 (% style="color:red" %)**Note: Receive and send set to hex mode**
1653
1654 [[image:image-20221130104310-3.png||height="616" width="714"]]
1655
1656
1657 === 6.7.3 With ModRSsim2: ===
1658
1659
1660 (% style="color:blue" %)**(1) Select serial port MODBUS RS-232**
1661
1662 [[image:image-20221130104310-4.png||height="390" width="865"]]
1663
1664
1665 (% style="color:blue" %)**(2) Click the serial port icon**
1666
1667 [[image:image-20221130104310-5.png||height="392" width="870"]]
1668
1669
1670 (% style="color:blue" %)**(3) After selecting the correct serial port and baud rate, click ok**
1671
1672 [[image:image-20221130104310-6.png]]
1673
1674
1675 (% style="color:blue" %)**(4) Click the comms.**
1676
1677 [[image:image-20221130104310-7.png||height="376" width="835"]]
1678
1679 (% class="wikigeneratedid" id="HRunRS485-LN2FBLcommandandmonitorifitiscorrect." %)
1680 **Run RS485-LN/BL command and monitor if it is correct.**
1681
1682
1683 === 6.7.4 Example – Test the CFGDEV command ===
1684
1685
1686 RS485-LN sent below command:
1687
1688 (% 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.
1689
1690
1691 We can see the output from the Serial port tool to analyze. And check if they are expected result.
1692
1693 [[image:image-20221130104310-8.png||height="214" width="797"]]
1694
1695
1696 We can also use (% style="color:blue" %)**ModRSsim2**(%%) to see the output.
1697
1698 [[image:image-20221130104310-9.png||height="531" width="729"]]
1699
1700
1701 === 6.7.5 Example – Test CMD command sets. ===
1702
1703
1704 Run (% style="color:blue" %)**AT+SENSORVALUE=1**(%%) to test the CMD commands set in RS485-LN.
1705
1706
1707 (% style="color:blue" %)**Serial port tool:**
1708
1709 [[image:image-20221130104310-10.png||height="339" width="844"]]
1710
1711
1712 (% style="color:blue" %)**ModRSsim2:**
1713
1714 [[image:image-20221130104310-11.png||height="281" width="962"]]
1715
1716
1717 === 6.7.6 Test with PC ===
1718
1719
1720 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.
1721
1722
1723 Or User can send the working commands set in PC serial tool to Dragino Support to check what should be configured in RS485-LN.
1724
1725 (% style="color:blue" %)**Connection method：**
1726
1727 [[image:image-20221130104310-12.png]]
1728
1729
1730 (% style="color:blue" %)**Link situation:**
1731
1732 [[image:image-20221130104310-13.png||height="458" width="486"]]
1733
1734
1735 [[image:image-20221130104310-14.png||height="371" width="823"]]
1736
1737
1738 == 6.8 Where to get the decoder for RS485-LN? ==
1739
1740
1741 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)
1742
1743
1744 = 7. Trouble Shooting =
1745
1746 == 7.1 Downlink doesn't work, how to solve it? ==
1747
1748
1749 Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1750
1751
1752 == 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1753
1754
1755 It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1756
1757
1758 = 8. Order Info =
1759
1760
1761 (% style="color:blue" %)**Part Number: RS485-LN-XXX**
1762
1763 (% style="color:blue" %)**XXX:**
1764
1765 * (% style="color:red" %)**EU433**(%%):  frequency bands EU433
1766 * (% style="color:red" %)**EU868**(%%):  frequency bands EU868
1767 * (% style="color:red" %)**KR920**(%%):  frequency bands KR920
1768 * (% style="color:red" %)**CN470**(%%):  frequency bands CN470
1769 * (% style="color:red" %)**AS923**(%%):  frequency bands AS923
1770 * (% style="color:red" %)**AU915**(%%):  frequency bands AU915
1771 * (% style="color:red" %)**US915**(%%):  frequency bands US915
1772 * (% style="color:red" %)**IN865**(%%):  frequency bands IN865
1773 * (% style="color:red" %)**RU864**(%%):  frequency bands RU864
1774 * (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1775
1776 = 9. Packing Info =
1777
1778
1779 **Package Includes**:
1780
1781 * RS485-LN x 1
1782 * Stick Antenna for LoRa RF part x 1
1783 * Program cable x 1
1784
1785 **Dimension and weight**:
1786
1787 * Device Size: 13.5 x 7 x 3 cm
1788 * Device Weight: 105g
1789 * Package Size / pcs : 14.5 x 8 x 5 cm
1790 * Weight / pcs : 170g
1791
1792 = 10. FCC Caution for RS485LN-US915 =
1793
1794
1795 (((
1796 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1797 )))
1798
1799 (((
1800 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.
1801 )))
1802
1803 (((
1804
1805 )))
1806
1807 (((
1808 (% style="color:red" %)**IMPORTANT NOTE:**
1809 )))
1810
1811 (((
1812 (% 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:
1813 )))
1814
1815 (((
1816 —Reorient or relocate the receiving antenna.
1817 )))
1818
1819 (((
1820 —Increase the separation between the equipment and receiver.
1821 )))
1822
1823 (((
1824 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1825 )))
1826
1827 (((
1828 —Consult the dealer or an experienced radio/TV technician for help.
1829 )))
1830
1831 (((
1832
1833 )))
1834
1835 (((
1836 (% style="color:red" %)**FCC Radiation Exposure Statement:**
1837 )))
1838
1839 (((
1840 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.
1841 )))
1842
1843
1844 = 11. Support =
1845
1846
1847 * (((
1848 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.
1849 )))
1850 * (((
1851 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]].
1852
1853
1854
1855 )))

Applications

Navigation

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