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... ... @@ -6,12 +6,18 @@
6 6  **RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 +
10 +
9 9  **Table of Contents:**
10 10  
13 +{{toc/}}
11 11  
12 12  
13 13  
14 14  
18 +
19 +
20 +
15 15  = 1.Introduction =
16 16  
17 17  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
... ... @@ -18,26 +18,40 @@
18 18  
19 19  (((
20 20  (((
21 -The Dragino RS485-LN is a RS485 to LoRaWAN Converter. It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
27 +(((
28 +The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
22 22  )))
30 +)))
23 23  
24 24  (((
25 -RS485-LN allows user to monitor / control RS485 devices and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
33 +(((
34 +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.
26 26  )))
36 +)))
27 27  
28 28  (((
29 -For data uplink, RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
39 +(((
40 +(% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
30 30  )))
42 +)))
31 31  
32 32  (((
33 -For data downlink, RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
45 +(((
46 +(% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
34 34  )))
48 +
49 +(((
50 +(% 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]]
35 35  )))
52 +)))
53 +)))
36 36  
37 37  [[image:1653267211009-519.png||height="419" width="724"]]
38 38  
57 +
39 39  == 1.2 Specifications ==
40 40  
60 +
41 41  **Hardware System:**
42 42  
43 43  * STM32L072CZT6 MCU
... ... @@ -44,8 +44,6 @@
44 44  * SX1276/78 Wireless Chip 
45 45  * Power Consumption (exclude RS485 device):
46 46  ** Idle: 32mA@12v
47 -
48 -*
49 49  ** 20dB Transmit: 65mA@12v
50 50  
51 51  **Interface for Model:**
... ... @@ -72,7 +72,7 @@
72 72  * Preamble detection.
73 73  * 127 dB Dynamic Range RSSI.
74 74  * Automatic RF Sense and CAD with ultra-fast AFC.
75 -* Packet engine up to 256 bytes with CRC.
93 +* Packet engine up to 256 bytes with CRC
76 76  
77 77  == 1.3 Features ==
78 78  
... ... @@ -98,15 +98,22 @@
98 98  
99 99  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
100 100  
119 +
101 101  == 1.6 Hardware Change log ==
102 102  
103 103  (((
104 104  (((
124 +(((
105 105  v1.2: Add External Interrupt Pin.
126 +)))
106 106  
128 +(((
107 107  v1.0: Release
108 108  )))
131 +
132 +
109 109  )))
134 +)))
110 110  
111 111  = 2. Power ON Device =
112 112  
... ... @@ -121,6 +121,8 @@
121 121  )))
122 122  
123 123  [[image:1653268091319-405.png]]
149 +
150 +
124 124  )))
125 125  
126 126  = 3. Operation Mode =
... ... @@ -128,9 +128,13 @@
128 128  == 3.1 How it works? ==
129 129  
130 130  (((
158 +(((
131 131  The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
132 132  )))
133 133  
162 +
163 +)))
164 +
134 134  == 3.2 Example to join LoRaWAN network ==
135 135  
136 136  Here shows an example for how to join the TTN V3 Network. Below is the network structure, we use [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway here. 
... ... @@ -137,15 +137,20 @@
137 137  
138 138  [[image:1653268155545-638.png||height="334" width="724"]]
139 139  
171 +
140 140  (((
173 +(((
141 141  The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
175 +)))
142 142  
177 +(((
143 143  485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
179 +)))
144 144  
145 145  [[image:1653268227651-549.png||height="592" width="720"]]
146 146  
147 147  (((
148 -The LG308 is already set to connect to [[TTN V3 network >>path:eu1.cloud.thethings.network/]]. So what we need to now is only configure the TTN V3:
184 +The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
149 149  )))
150 150  
151 151  (((
... ... @@ -192,35 +192,42 @@
192 192  
193 193  [[image:1652953568895-172.png||height="232" width="724"]]
194 194  
231 +
195 195  == 3.3 Configure Commands to read data ==
196 196  
197 197  (((
198 198  (((
199 -There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
236 +(((
237 +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-BLviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
200 200  )))
239 +)))
201 201  
202 202  (((
242 +(((
203 203  (% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
204 204  )))
245 +
246 +
205 205  )))
248 +)))
206 206  
207 207  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===
208 208  
209 209  To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
210 210  
211 -(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
212 -|(((
254 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
255 +|=(% style="width: 110px;" %)(((
213 213  **AT Commands**
214 -)))|(% style="width:285px" %)(((
257 +)))|=(% style="width: 190px;" %)(((
215 215  **Description**
216 -)))|(% style="width:347px" %)(((
259 +)))|=(% style="width: 190px;" %)(((
217 217  **Example**
218 218  )))
219 -|(((
262 +|(% style="width:110px" %)(((
220 220  AT+BAUDR
221 -)))|(% style="width:285px" %)(((
264 +)))|(% style="width:190px" %)(((
222 222  Set the baud rate (for RS485 connection). Default Value is: 9600.
223 -)))|(% style="width:347px" %)(((
266 +)))|(% style="width:190px" %)(((
224 224  (((
225 225  AT+BAUDR=9600
226 226  )))
... ... @@ -229,11 +229,11 @@
229 229  Options: (1200,2400,4800,14400,19200,115200)
230 230  )))
231 231  )))
232 -|(((
275 +|(% style="width:110px" %)(((
233 233  AT+PARITY
234 -)))|(% style="width:285px" %)(((
277 +)))|(% style="width:190px" %)(((
235 235  Set UART parity (for RS485 connection)
236 -)))|(% style="width:347px" %)(((
279 +)))|(% style="width:190px" %)(((
237 237  (((
238 238  AT+PARITY=0
239 239  )))
... ... @@ -242,9 +242,9 @@
242 242  Option: 0: no parity, 1: odd parity, 2: even parity
243 243  )))
244 244  )))
245 -|(((
288 +|(% style="width:110px" %)(((
246 246  AT+STOPBIT
247 -)))|(% style="width:285px" %)(((
290 +)))|(% style="width:190px" %)(((
248 248  (((
249 249  Set serial stopbit (for RS485 connection)
250 250  )))
... ... @@ -252,7 +252,7 @@
252 252  (((
253 253  
254 254  )))
255 -)))|(% style="width:347px" %)(((
298 +)))|(% style="width:190px" %)(((
256 256  (((
257 257  AT+STOPBIT=0 for 1bit
258 258  )))
... ... @@ -266,6 +266,7 @@
266 266  )))
267 267  )))
268 268  
312 +
269 269  === 3.3.2 Configure sensors ===
270 270  
271 271  (((
... ... @@ -274,90 +274,48 @@
274 274  )))
275 275  )))
276 276  
277 -(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
278 -|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
279 -|AT+CFGDEV|(% style="width:418px" %)(((
321 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
322 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
323 +|AT+CFGDEV|(% style="width:110px" %)(((
280 280  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
281 281  
282 282  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
283 283  
284 284  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
285 -)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
329 +)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
286 286  
331 +
287 287  === 3.3.3 Configure read commands for each sampling ===
288 288  
289 289  (((
290 -RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink.
291 -)))
335 +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.
292 292  
293 -(((
294 -During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload.
295 -)))
296 -
297 -(((
298 298  To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
299 -)))
300 300  
301 -(((
302 302  This section describes how to achieve above goals.
303 -)))
304 304  
305 -(((
306 -During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
307 -)))
341 +During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
308 308  
309 -(((
310 -**Command from RS485-BL to Sensor:**
311 -)))
312 312  
313 -(((
314 -RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
315 -)))
344 +**Each RS485 commands include two parts:**
316 316  
317 -(((
318 -**Handle return from sensors to RS485-BL**:
319 -)))
346 +~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.
320 320  
321 -(((
322 -After RS485-BL send out a string to sensor, RS485-BL will wait for the return from RS485 or TTL sensor. And user can specify how to handle the return, by **AT+DATACUT or AT+SEARCH commands**
323 -)))
348 +2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar.
324 324  
325 -* (((
326 -**AT+DATACUT**
327 -)))
350 +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
328 328  
329 -(((
330 -When the return value from sensor have fix length and we know which position the valid value we should get, we can use AT+DATACUT command.
331 -)))
332 332  
333 -* (((
334 -**AT+SEARCH**
335 -)))
336 -
337 -(((
338 -When the return value from sensor is dynamic length and we are not sure which bytes the valid data is, instead, we know what value the valid value following. We can use AT+SEARCH to search the valid value in the return string.
339 -)))
340 -
341 -(((
342 -**Define wait timeout:**
343 -)))
344 -
345 -(((
346 -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
347 -)))
348 -
349 -(((
350 350  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
351 -)))
352 352  
353 -**Examples:**
354 354  
355 355  Below are examples for the how above AT Commands works.
356 356  
357 -**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
358 358  
359 -(% border="1" class="table-bordered" %)
360 -|(((
359 +**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
360 +
361 +(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
362 +|(% style="width:496px" %)(((
361 361  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
362 362  
363 363  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
... ... @@ -365,49 +365,15 @@
365 365  **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
366 366  )))
367 367  
368 -(((
369 369  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.
370 -)))
371 371  
372 -(((
373 -In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
374 -)))
372 +In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
375 375  
376 -(((
377 -**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
378 -)))
379 379  
380 -(% border="1" class="table-bordered" %)
381 -|(((
382 -**AT+SEARCHx=aa,xx xx xx xx xx**
383 -
384 -* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
385 -* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
386 -
387 -
388 -)))
389 -
390 -**Examples:**
391 -
392 -~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
393 -
394 -If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
395 -
396 -The valid data will be all bytes after 1E 56 34 , so it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30 31 00 49**
397 -
398 -[[image:1653269403619-508.png]]
399 -
400 -2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
401 -
402 -If we set AT+SEARCH1=2, 1E 56 34+31 00 49
403 -
404 -Device will search the bytes between 1E 56 34 and 31 00 49. So it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30**
405 -
406 -[[image:1653269438444-278.png]]
407 -
408 408  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
409 409  
410 -|(((
377 +(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
378 +|(% style="width:510px" %)(((
411 411  **AT+DATACUTx=a,b,c**
412 412  
413 413  * **a: length for the return of AT+COMMAND**
... ... @@ -415,48 +415,37 @@
415 415  * **c: define the position for valid value.  **
416 416  )))
417 417  
418 -Examples:
386 +**Examples:**
419 419  
420 420  * Grab bytes:
421 421  
422 -[[image:1653269551753-223.png||height="311" width="717"]]
390 +[[image:image-20220602153621-1.png]]
423 423  
392 +
424 424  * Grab a section.
425 425  
426 -[[image:1653269568276-930.png||height="325" width="718"]]
395 +[[image:image-20220602153621-2.png]]
427 427  
397 +
428 428  * Grab different sections.
429 429  
430 -[[image:1653269593172-426.png||height="303" width="725"]]
400 +[[image:image-20220602153621-3.png]]
431 431  
432 -(% style="color:red" %)**Note:**
402 +
403 +)))
433 433  
434 -AT+SEARCHx and AT+DATACUTx can be used together, if both commands are set, RS485-BL will first process AT+SEARCHx on the return string and get a temporary string, and then process AT+DATACUTx on this temporary string to get the final payload. In this case, AT+DATACUTx need to set to format AT+DATACUTx=0,xx,xx where the return bytes set to 0.
435 -
436 -Example:
437 -
438 -(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
439 -
440 -(% style="color:red" %)AT+SEARCH1=1,1E 56 34
441 -
442 -(% style="color:red" %)AT+DATACUT1=0,2,1~~5
443 -
444 -(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
445 -
446 -(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
447 -
448 -(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
449 -
450 -[[image:1653269618463-608.png]]
451 -
452 452  === 3.3.4 Compose the uplink payload ===
453 453  
454 454  (((
455 455  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.**
409 +
410 +
456 456  )))
457 457  
458 458  (((
459 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
414 +(% style="color:#037691" %)**Examples: AT+DATAUP=0**
415 +
416 +
460 460  )))
461 461  
462 462  (((
... ... @@ -477,8 +477,10 @@
477 477  
478 478  [[image:1653269759169-150.png||height="513" width="716"]]
479 479  
480 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
481 481  
438 +(% style="color:#037691" %)**Examples: AT+DATAUP=1**
439 +
440 +
482 482  Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
483 483  
484 484  Final Payload is
... ... @@ -485,704 +485,1029 @@
485 485  
486 486  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
487 487  
488 -1. Battery Info (2 bytes): Battery voltage
489 -1. PAYVER (1 byte): Defined by AT+PAYVER
490 -1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
491 -1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
492 -1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
493 493  
494 -[[image:1653269916228-732.png||height="433" width="711"]]
448 +1. PAYVER: Defined by AT+PAYVER
449 +1. PAYLOAD COUNT: Total how many uplinks of this sampling.
450 +1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
451 +1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
495 495  
453 +[[image:image-20220602155039-4.png]]
496 496  
497 -So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
498 498  
499 -DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
456 +So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
500 500  
501 -DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
458 +DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
502 502  
503 -DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
460 +DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
504 504  
505 -Below are the uplink payloads:
462 +DATA3=the rest of Valid value of RETURN10= **30**
506 506  
507 -[[image:1653270130359-810.png]]
508 508  
465 +(% 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:
509 509  
510 -(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
467 + ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
511 511  
512 - ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
469 + * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
513 513  
514 - * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
471 + * For US915 band, max 11 bytes for each uplink.
515 515  
516 - * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
473 + ~* For all other bands: max 51 bytes for each uplink.
517 517  
518 - ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
519 519  
476 +Below are the uplink payloads:
520 520  
478 +[[image:1654157178836-407.png]]
521 521  
522 -1.
523 -11.
524 -111. Uplink on demand
525 525  
526 -Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
481 +=== 3.3.5 Uplink on demand ===
527 527  
483 +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.
484 +
528 528  Downlink control command:
529 529  
530 -[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
487 +**0x08 command**: Poll an uplink with current command set in RS485-LN.
531 531  
532 -[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
489 +**0xA8 command**: Send a command to RS485-LN and uplink the output from sensors.
533 533  
534 534  
535 535  
536 -1.
537 -11.
538 -111. Uplink on Interrupt
493 +=== 3.3.6 Uplink on Interrupt ===
539 539  
540 -Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
495 +RS485-LN support external Interrupt uplink since hardware v1.2 release.
541 541  
542 -AT+INTMOD=0  Disable Interrupt
497 +[[image:1654157342174-798.png]]
543 543  
544 -AT+INTMOD=1  Interrupt trigger by rising or falling edge.
499 +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.
545 545  
546 -AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
547 547  
548 -AT+INTMOD=3  Interrupt trigger by rising edge.
502 +== 3.4 Uplink Payload ==
549 549  
550 550  
551 -1.
552 -11. Uplink Payload
505 +[[image:image-20220606110929-1.png]]
553 553  
554 -|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
555 -|Value|(((
556 -Battery(mV)
557 -
558 -&
559 -
560 -Interrupt _Flag
561 -)))|(((
562 -PAYLOAD_VER
563 -
564 -
565 -)))|If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.
566 -
567 567  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
568 568  
569 569  
570 -function Decoder(bytes, port) {
510 +== 3.5 Configure RS485-BL via AT or Downlink ==
571 571  
572 -~/~/Payload Formats of RS485-BL Deceive
512 +(((
513 +User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
514 +)))
573 573  
574 -return {
575 -
576 - ~/~/Battery,units:V
577 -
578 - BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
579 -
580 - ~/~/GPIO_EXTI 
581 -
582 - EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
583 -
584 - ~/~/payload of version
585 -
586 - Pay_ver:bytes[2],
587 -
588 - };
589 -
590 - }
591 -
592 -
593 -
594 -
595 -
596 -
597 -
598 -TTN V3 uplink screen shot.
599 -
600 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
601 -
602 -1.
603 -11. Configure RS485-BL via AT or Downlink
604 -
605 -User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
606 -
516 +(((
607 607  There are two kinds of Commands:
518 +)))
608 608  
609 -* **Common Commands**: They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
520 +* (((
521 +(% 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]]
522 +)))
610 610  
611 -* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
524 +* (((
525 +(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
526 +)))
612 612  
613 -1.
614 -11.
615 -111. Common Commands:
528 +(((
529 +
530 +)))
616 616  
617 -They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
618 618  
533 +=== 3.5.1 Common Commands ===
619 619  
620 -1.
621 -11.
622 -111. Sensor related commands:
535 +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]]
623 623  
624 -==== Choose Device Type (RS485 or TTL) ====
625 625  
626 -RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
538 +=== 3.5.2 Sensor related commands ===
627 627  
628 -* AT Command
540 +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.
629 629  
630 -**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
542 +[[image:image-20220602163333-5.png||height="263" width="1160"]]
631 631  
632 -**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
544 +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)
633 633  
634 634  
635 -* Downlink Payload
547 +=== 3.5.3 Sensor related commands ===
636 636  
637 -**0A aa**     à same as AT+MOD=aa
638 638  
639 639  
640 640  
641 -==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
552 +==== **RS485 Debug Command** ====
642 642  
643 -This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
554 +(((
555 +This command is used to configure the RS485 devices; they won’t be used during sampling.
556 +)))
644 644  
645 -* AT Command
558 +* (((
559 +**AT Command**
560 +)))
646 646  
647 -AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
562 +(% class="box infomessage" %)
563 +(((
564 +(((
565 +**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
566 +)))
567 +)))
648 648  
649 -m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
569 +(((
570 +m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
571 +)))
650 650  
573 +* (((
574 +**Downlink Payload**
575 +)))
651 651  
652 -
653 -* Downlink Payload
654 -
577 +(((
655 655  Format: A8 MM NN XX XX XX XX YY
579 +)))
656 656  
581 +(((
657 657  Where:
583 +)))
658 658  
659 -* MM: 1: add CRC-16/MODBUS ; 0: no CRC
660 -* NN: The length of RS485 command
661 -* XX XX XX XX: RS485 command total NN bytes
662 -* YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
585 +* (((
586 +MM: 1: add CRC-16/MODBUS ; 0: no CRC
587 +)))
588 +* (((
589 +NN: The length of RS485 command
590 +)))
591 +* (((
592 +XX XX XX XX: RS485 command total NN bytes
593 +)))
594 +* (((
595 +(((
596 +YY: How many bytes will be uplink from the return of this RS485 command,
597 +)))
663 663  
664 -**Example 1:**
599 +* (((
600 +if YY=0, RS485-LN will execute the downlink command without uplink;
601 +)))
602 +* (((
603 +if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
604 +)))
605 +* (((
606 +if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
607 +)))
608 +)))
665 665  
610 +(((
611 +**Example 1** ~-~-> Configure without ask for uplink (YY=0)
612 +)))
613 +
614 +(((
666 666  To connect a Modbus Alarm with below commands.
616 +)))
667 667  
668 -* 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.
618 +* (((
619 +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.
620 +)))
669 669  
670 -* 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.
622 +* (((
623 +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.
624 +)))
671 671  
626 +(((
672 672  So if user want to use downlink command to control to RS485 Alarm, he can use:
628 +)))
673 673  
674 -**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
630 +(((
631 +(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
632 +)))
675 675  
676 -**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
634 +(((
635 +(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
636 +)))
677 677  
638 +(((
678 678  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.
640 +)))
679 679  
642 +(((
643 +
644 +)))
680 680  
681 -**Example 2:**
646 +(((
647 +**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
648 +)))
682 682  
683 -Check TTL Sensor return:
650 +(((
651 +User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
652 +)))
684 684  
685 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
654 +(((
655 +
656 +)))
686 686  
658 +(((
659 +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:
660 +)))
687 687  
662 +(((
663 + **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
664 +)))
688 688  
666 +(((
667 + [[image:1654159460680-153.png]]
668 +)))
689 689  
690 -==== Set Payload version ====
691 691  
671 +
672 +
673 +==== **Set Payload version** ====
674 +
675 +(((
692 692  This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
677 +)))
693 693  
694 -* AT Command:
679 +* (((
680 +**AT Command:**
681 +)))
695 695  
696 -AT+PAYVER: Set PAYVER field = 1
683 +(% class="box infomessage" %)
684 +(((
685 +(((
686 +**AT+PAYVER: Set PAYVER field = 1**
687 +)))
688 +)))
697 697  
690 +* (((
691 +**Downlink Payload:**
692 +)))
698 698  
699 -* Downlink Payload:
694 +(((
695 +**0xAE 01**  ~-~-> Set PAYVER field =  0x01
696 +)))
700 700  
701 -0xAE 01   à Set PAYVER field =  0x01
698 +(((
699 +**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
700 +)))
702 702  
703 -0xAE 0F   à Set PAYVER field =  0x0F
704 704  
705 705  
706 -==== Set RS485 Sampling Commands ====
707 707  
708 -AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
705 +==== **Set RS485 Sampling Commands** ====
709 709  
710 -These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>path:#polling_485]].
707 +(((
708 +AT+COMMANDx or AT+DATACUTx
709 +)))
711 711  
711 +(((
712 +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"]].
713 +)))
712 712  
713 -* AT Command:
715 +(((
716 +
717 +)))
714 714  
715 -AT+COMMANDx: Configure RS485 read command to sensor.
719 +* (((
720 +**AT Command:**
721 +)))
716 716  
717 -AT+DATACUTx: Configure how to handle return from RS485 devices.
723 +(% class="box infomessage" %)
724 +(((
725 +(((
726 +**AT+COMMANDx: Configure RS485 read command to sensor.**
727 +)))
728 +)))
718 718  
719 -AT+SEARCHx: Configure search command
730 +(% class="box infomessage" %)
731 +(((
732 +(((
733 +**AT+DATACUTx: Configure how to handle return from RS485 devices.**
734 +)))
735 +)))
720 720  
737 +(((
738 +
739 +)))
721 721  
722 -* Downlink Payload:
741 +* (((
742 +**Downlink Payload:**
743 +)))
723 723  
724 -0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
745 +(((
746 +**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
747 +)))
725 725  
726 -Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
749 +(((
750 +(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
751 +)))
727 727  
753 +(((
728 728  Format: AF MM NN LL XX XX XX XX YY
755 +)))
729 729  
757 +(((
730 730  Where:
759 +)))
731 731  
732 -* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
733 -* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
734 -* LL: The length of AT+COMMAND or AT+DATACUT command
735 -* XX XX XX XX: AT+COMMAND or AT+DATACUT command
736 -* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
761 +* (((
762 +MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
763 +)))
764 +* (((
765 +NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
766 +)))
767 +* (((
768 +LL:  The length of AT+COMMAND or AT+DATACUT command
769 +)))
770 +* (((
771 +XX XX XX XX: AT+COMMAND or AT+DATACUT command
772 +)))
773 +* (((
774 +YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
775 +)))
737 737  
738 -Example:
777 +(((
778 +**Example:**
779 +)))
739 739  
740 -**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
781 +(((
782 +(% 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
783 +)))
741 741  
742 -**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
785 +(((
786 +(% 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**
787 +)))
743 743  
744 -**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
789 +(((
790 +(% 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**
791 +)))
745 745  
746 746  
747 -0xAB downlink command can be used for set AT+SEARCHx
748 748  
749 -Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
750 750  
751 -* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
752 -* AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
796 +==== **Fast command to handle MODBUS device** ====
753 753  
754 -**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
798 +(((
799 +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]].
800 +)))
755 755  
802 +(((
803 +This command is valid since v1.3 firmware version
804 +)))
756 756  
757 -==== Fast command to handle MODBUS device ====
806 +(((
807 +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.
808 +)))
758 758  
759 -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]].
810 +(((
811 +
812 +)))
760 760  
761 -This command is valid since v1.3 firmware version
814 +(((
815 +**Example:**
816 +)))
762 762  
818 +* (((
819 +AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
820 +)))
821 +* (((
822 +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.
823 +)))
824 +* (((
825 +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.
826 +)))
763 763  
764 -AT+MBFUN has only two value:
828 +[[image:image-20220602165351-6.png]]
765 765  
766 -* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
830 +[[image:image-20220602165351-7.png]]
767 767  
768 -AT+MBFUN=1, device can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
769 769  
770 -* AT+MBFUN=0: Disable Modbus fast reading.
771 771  
772 -Example:
773 773  
774 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
775 -* 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.
776 -* 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.
835 +==== **RS485 command timeout** ====
777 777  
778 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
837 +(((
838 +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.
839 +)))
779 779  
841 +(((
842 +Default value: 0, range:  0 ~~ 65 seconds
843 +)))
780 780  
781 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
845 +* (((
846 +**AT Command:**
847 +)))
782 782  
849 +(% class="box infomessage" %)
850 +(((
851 +(((
852 +**AT+CMDDLaa=hex(bb cc)*1000**
853 +)))
854 +)))
783 783  
784 -* Downlink Commands:
856 +(((
857 +**Example:**
858 +)))
785 785  
786 -A9 aa -à Same as AT+MBFUN=aa
860 +(((
861 +**AT+CMDDL1=1000** to send the open time to 1000ms
862 +)))
787 787  
864 +(((
865 +
866 +)))
788 788  
789 -==== RS485 command timeout ====
868 +* (((
869 +**Downlink Payload:**
870 +)))
790 790  
791 -Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action.
872 +(((
873 +**0x AA aa bb cc**
874 +)))
792 792  
793 -Default value: 0, range:  0 ~~ 5 seconds
876 +(((
877 +Same as: AT+CMDDLaa=hex(bb cc)*1000
878 +)))
794 794  
880 +(((
881 + **Example:**
882 +)))
795 795  
796 -* AT Command:
884 +(((
885 + 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
886 +)))
797 797  
798 -AT+CMDDLaa=hex(bb cc)
799 799  
800 -Example:
801 801  
802 -**AT+CMDDL1=1000** to send the open time to 1000ms
803 803  
891 +==== **Uplink payload mode** ====
804 804  
805 -* Downlink Payload:
893 +(((
894 +Define to use one uplink or multiple uplinks for the sampling.
895 +)))
806 806  
807 -0x AA aa bb cc
897 +(((
898 +The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
899 +)))
808 808  
809 -Same as: AT+CMDDLaa=hex(bb cc)
901 +* (((
902 +**AT Command:**
903 +)))
810 810  
811 - Example:
905 +(% class="box infomessage" %)
906 +(((
907 +(((
908 +**AT+DATAUP=0**
909 +)))
910 +)))
812 812  
813 - 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
912 +(% class="box infomessage" %)
913 +(((
914 +(((
915 +**AT+DATAUP=1**
916 +)))
917 +)))
814 814  
919 +(((
920 +
921 +)))
815 815  
816 -==== [[Uplink>>path:#downlink_A8]] payload mode ====
923 +* (((
924 +**Downlink Payload:**
925 +)))
817 817  
818 -Define to use one uplink or multiple uplinks for the sampling.
927 +(((
928 +**0xAD 00**  **~-~->** Same as AT+DATAUP=0
929 +)))
819 819  
820 -The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
931 +(((
932 +**0xAD 01**  **~-~->** Same as AT+DATAUP=1
933 +)))
821 821  
822 -* AT Command:
823 823  
824 -AT+DATAUP=0
825 825  
826 -AT+DATAUP=1
827 827  
938 +==== **Manually trigger an Uplink** ====
828 828  
829 -* Downlink Payload:
940 +(((
941 +Ask device to send an uplink immediately.
942 +)))
830 830  
831 -0xAD 00   à Same as AT+DATAUP=0
944 +* (((
945 +**AT Command:**
946 +)))
832 832  
833 -0xAD 01   à Same as AT+DATAUP=1
948 +(((
949 +No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
950 +)))
834 834  
952 +(((
953 +
954 +)))
835 835  
836 -==== Manually trigger an Uplink ====
956 +* (((
957 +**Downlink Payload:**
958 +)))
837 837  
838 -Ask device to send an uplink immediately.
960 +(((
961 +**0x08 FF**, RS485-LN will immediately send an uplink.
962 +)))
839 839  
840 -* Downlink Payload:
841 841  
842 -0x08 FF, RS485-BL will immediately send an uplink.
843 843  
844 844  
845 -==== Clear RS485 Command ====
967 +==== **Clear RS485 Command** ====
846 846  
969 +(((
847 847  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
971 +)))
848 848  
973 +* (((
974 +**AT Command:**
975 +)))
849 849  
850 -* AT Command:
851 -
977 +(((
852 852  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
979 +)))
853 853  
981 +(((
854 854  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
983 +)))
855 855  
985 +(((
856 856  Example screen shot after clear all RS485 commands. 
987 +)))
857 857  
989 +(((
990 +
991 +)))
858 858  
859 -
993 +(((
860 860  The uplink screen shot is:
995 +)))
861 861  
862 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
997 +[[image:1654160691922-496.png]]
863 863  
864 864  
865 -* Downlink Payload:
1000 +* (((
1001 +**Downlink Payload:**
1002 +)))
866 866  
867 -0x09 aa bb same as AT+CMDEAR=aa,bb
1004 +(((
1005 +**0x09 aa bb** same as AT+CMDEAR=aa,bb
1006 +)))
868 868  
869 869  
870 -==== Set Serial Communication Parameters ====
871 871  
1010 +
1011 +==== **Set Serial Communication Parameters** ====
1012 +
1013 +(((
872 872  Set the Rs485 serial communication parameters:
1015 +)))
873 873  
874 -* AT Command:
1017 +* (((
1018 +**AT Command:**
1019 +)))
875 875  
1021 +(((
876 876  Set Baud Rate:
1023 +)))
877 877  
878 -AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1025 +(% class="box infomessage" %)
1026 +(((
1027 +(((
1028 +**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1029 +)))
1030 +)))
879 879  
1032 +(((
1033 +Set UART Parity
1034 +)))
880 880  
881 -Set UART parity
1036 +(% class="box infomessage" %)
1037 +(((
1038 +(((
1039 +**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1040 +)))
1041 +)))
882 882  
883 -AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
884 -
885 -
1043 +(((
886 886  Set STOPBIT
1045 +)))
887 887  
888 -AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1047 +(% class="box infomessage" %)
1048 +(((
1049 +(((
1050 +**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1051 +)))
1052 +)))
889 889  
1054 +(((
1055 +
1056 +)))
890 890  
891 -* Downlink Payload:
1058 +* (((
1059 +**Downlink Payload:**
1060 +)))
892 892  
893 -A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1062 +(((
1063 +**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1064 +)))
894 894  
895 -Example:
1066 +(((
1067 +**Example:**
1068 +)))
896 896  
897 -* A7 01 00 60   same as AT+BAUDR=9600
898 -* A7 01 04 80  same as AT+BAUDR=115200
1070 +* (((
1071 +A7 01 00 60   same as AT+BAUDR=9600
1072 +)))
1073 +* (((
1074 +A7 01 04 80  same as AT+BAUDR=115200
1075 +)))
899 899  
1077 +(((
900 900  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1079 +)))
901 901  
1081 +(((
902 902  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1083 +)))
903 903  
904 904  
905 -==== Control output power duration ====
906 906  
907 -User can set the output power duration before each sampling.
908 908  
909 -* AT Command:
1088 +== 3.6 Listening mode for RS485 network ==
910 910  
911 -Example:
1090 +(((
1091 +This feature support since firmware v1.4
1092 +)))
912 912  
913 -AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
1094 +(((
1095 +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.
1096 +)))
914 914  
915 -AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1098 +[[image:image-20220602171200-8.png||height="567" width="1007"]]
916 916  
1100 +(((
1101 +To enable the listening mode, use can run the command AT+RXMODE.
1102 +)))
917 917  
918 -* LoRaWAN Downlink Command:
1104 +(((
1105 +
1106 +)))
919 919  
920 -07 01 aa bb  Same as AT+5VT=(aa bb)
1108 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1109 +|=(% style="width: 100px;" %)(((
1110 +**Command example**
1111 +)))|=(% style="width: 400px;" %)(((
1112 +**Function**
1113 +)))
1114 +|(% style="width:100px" %)(((
1115 +AT+RXMODE=1,10
1116 +)))|(% style="width:400px" %)(((
1117 +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.
1118 +)))
1119 +|(% style="width:100px" %)(((
1120 +AT+RXMODE=2,500
1121 +)))|(% style="width:400px" %)(((
1122 +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
1123 +)))
1124 +|(% style="width:100px" %)(((
1125 +AT+RXMODE=0,0
1126 +)))|(% style="width:400px" %)(((
1127 +Disable listening mode. This is the default settings.
1128 +)))
1129 +|(% style="width:100px" %)(((
1130 +
1131 +)))|(% style="width:400px" %)(((
1132 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1133 +)))
921 921  
922 -07 02 aa bb  Same as AT+3V3T=(aa bb)
1135 +(((
1136 +**Downlink Command:**
1137 +)))
923 923  
1139 +(((
1140 +**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1141 +)))
924 924  
1143 +(((
1144 +
1145 +)))
925 925  
1147 +(((
1148 +**Example**:
1149 +)))
926 926  
927 -1.
928 -11. Buttons
1151 +(((
1152 +The RS485-LN is set to AT+RXMODE=2,1000
1153 +)))
929 929  
930 -|**Button**|**Feature**
931 -|**RST**|Reboot RS485-BL
1155 +(((
1156 +There is a two Modbus commands in the RS485 network as below:
1157 +)))
932 932  
933 -1.
934 -11. +3V3 Output
1159 +(((
1160 +The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1161 +)))
935 935  
936 -RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1163 +(((
1164 +And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1165 +)))
937 937  
938 -The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling. 
1167 +(((
1168 +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
1169 +)))
939 939  
1171 +(((
1172 +[[image:image-20220602171200-9.png]]
1173 +)))
940 940  
941 -The +3V3 output time can be controlled by AT Command.
1175 +(((
1176 +
1177 +)))
942 942  
943 -**AT+3V3T=1000**
1179 +(((
1180 +(% 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.
1181 +)))
944 944  
945 -Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
946 946  
1184 +== 3.7 Buttons ==
947 947  
948 -By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
949 949  
1187 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1188 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1189 +|(% style="width:50px" %)**ACT**|(% style="width:350px" %)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**
1190 +|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1191 +|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
950 950  
951 -1.
952 -11. +5V Output
953 953  
954 -RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1194 +== 3.8 LEDs ==
955 955  
956 -The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling. 
957 957  
1197 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1198 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1199 +|**PWR**|Always on if there is power
1200 +|**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.
958 958  
959 -The 5V output time can be controlled by AT Command.
960 960  
961 -**AT+5VT=1000**
1203 += 4. Case Study =
962 962  
963 -Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
1205 +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]]
964 964  
965 965  
966 -By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
1208 += 5. Use AT Command =
967 967  
1210 +== 5.1 Access AT Command ==
968 968  
1212 +(((
1213 +RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
1214 +)))
969 969  
1216 +[[image:1654162355560-817.png]]
970 970  
971 -1.
972 -11. LEDs
973 973  
974 -|**LEDs**|**Feature**
975 -|**LED1**|Blink when device transmit a packet.
1219 +(((
1220 +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-BL. The default password is 123456. Below is the output for reference:
1221 +)))
976 976  
977 -1.
978 -11. Switch Jumper
1223 +[[image:1654162368066-342.png]]
979 979  
980 -|**Switch Jumper**|**Feature**
981 -|**SW1**|(((
982 -ISP position: Upgrade firmware via UART
983 983  
984 -Flash position: Configure device, check running status.
1226 +(((
1227 +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/]]
985 985  )))
986 -|**SW2**|(((
987 -5V position: set to compatible with 5v I/O.
988 988  
989 -3.3v position: set to compatible with 3.3v I/O.,
990 -)))
991 991  
992 -+3.3V: is always ON
993 993  
994 -+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1232 +== 5.2 Common AT Command Sequence ==
995 995  
996 -1. Case Study
1234 +=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
997 997  
998 -User can check this URL for some case studies.
1236 +If device has not joined network yet:
999 999  
1000 -[[http:~~/~~/wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS>>url:http://wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS]]
1238 +(% class="box infomessage" %)
1239 +(((
1240 +**AT+FDR**
1241 +)))
1001 1001  
1243 +(% class="box infomessage" %)
1244 +(((
1245 +**AT+NJM=0**
1246 +)))
1002 1002  
1248 +(% class="box infomessage" %)
1249 +(((
1250 +**ATZ**
1251 +)))
1003 1003  
1004 1004  
1005 -1. Use AT Command
1006 -11. Access AT Command
1254 +If device already joined network:
1007 1007  
1008 -RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
1256 +(% class="box infomessage" %)
1257 +(((
1258 +**AT+NJM=0**
1259 +)))
1009 1009  
1010 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1261 +(% class="box infomessage" %)
1262 +(((
1263 +**ATZ**
1264 +)))
1011 1011  
1012 1012  
1013 -In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
1267 +=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1014 1014  
1015 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1016 1016  
1270 +(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1017 1017  
1272 +(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1018 1018  
1019 -More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1274 +(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
1020 1020  
1276 +(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1021 1021  
1278 +(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1022 1022  
1023 -1.
1024 -11. Common AT Command Sequence
1025 -111. Multi-channel ABP mode (Use with SX1301/LG308)
1280 +(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
1026 1026  
1027 -If device has not joined network yet:
1282 +(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1028 1028  
1029 -AT+FDR
1284 +(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1030 1030  
1031 -AT+NJM=0
1286 +(% 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.
1032 1032  
1033 -ATZ
1288 +(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1034 1034  
1035 1035  
1036 -If device already joined network:
1291 +(% style="color:red" %)**Note:**
1037 1037  
1038 -AT+NJM=0
1293 +(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1294 +2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1295 +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.
1296 +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
1039 1039  
1040 -ATZ
1298 +[[image:1654162478620-421.png]]
1041 1041  
1042 -1.
1043 -11.
1044 -111. Single-channel ABP mode (Use with LG01/LG02)
1045 1045  
1046 -AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1301 += 6. FAQ =
1047 1047  
1048 -AT+NJM=0 Set to ABP mode
1303 +== 6.1 How to upgrade the image? ==
1049 1049  
1050 -AT+ADR=0 Set the Adaptive Data Rate Off
1305 +(((
1306 +The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1307 +)))
1051 1051  
1052 -AT+DR=5  Set Data Rate
1309 +* (((
1310 +Support new features
1311 +)))
1312 +* (((
1313 +For bug fix
1314 +)))
1315 +* (((
1316 +Change LoRaWAN bands.
1317 +)))
1053 1053  
1054 -AT+TDC=60000  Set transmit interval to 60 seconds
1319 +(((
1320 +Below shows the hardware connection for how to upload an image to RS485-LN:
1321 +)))
1055 1055  
1056 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1323 +[[image:1654162535040-878.png]]
1057 1057  
1058 -AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1325 +**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]].
1059 1059  
1060 -AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1327 +**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1061 1061  
1062 -AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1329 +**Step3: **Open flashloader; choose the correct COM port to update.
1063 1063  
1064 -ATZ          Reset MCU
1331 +(((
1332 +(((
1333 +(% 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.
1334 +)))
1335 +)))
1065 1065  
1066 -**Note:**
1067 1067  
1068 -1. Make sure the device is set to ABP mode in the IoT Server.
1069 -1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1070 -1. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1071 -1. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1338 +[[image:image-20220602175818-12.png]]
1072 1072  
1073 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1074 1074  
1341 +[[image:image-20220602175848-13.png]]
1075 1075  
1076 -1. FAQ
1077 -11. How to upgrade the image?
1078 1078  
1079 -The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1344 +[[image:image-20220602175912-14.png]]
1080 1080  
1081 -* Support new features
1082 -* For bug fix
1083 -* Change LoRaWAN bands.
1084 1084  
1085 -Below shows the hardware connection for how to upload an image to RS485-BL:
1347 +**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1086 1086  
1087 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1349 +[[image:image-20220602175638-10.png]]
1088 1088  
1089 -**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]].
1090 1090  
1091 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1352 +== 6.2 How to change the LoRa Frequency Bands/Region? ==
1092 1092  
1093 -**Step3: **Open flashloader; choose the correct COM port to update.
1354 +User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1094 1094  
1095 1095  
1096 -|(((
1097 -HOLD PRO then press the RST button, SYS will be ON, then click next
1098 -)))
1357 +== 6.3 How many RS485-Slave can RS485-BL connects? ==
1099 1099  
1100 -|(((
1101 -Board detected
1102 -)))
1359 +The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
1103 1103  
1104 -|(((
1105 -
1106 -)))
1107 1107  
1108 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]
1362 +== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1109 1109  
1364 +When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1110 1110  
1366 +Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1111 1111  
1112 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]
1113 1113  
1369 += 7. Trouble Shooting =
1114 1114  
1115 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1371 +== 7.1 Downlink doesn’t work, how to solve it? ==
1116 1116  
1373 +Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1117 1117  
1118 -1.
1119 -11. How to change the LoRa Frequency Bands/Region?
1120 1120  
1121 -User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1376 +== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1122 1122  
1378 +It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1123 1123  
1124 1124  
1125 -1.
1126 -11. How many RS485-Slave can RS485-BL connects?
1381 += 8. Order Info =
1127 1127  
1128 -The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>path:#downlink_A8]].
1383 +(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1129 1129  
1385 +(% style="color:blue" %)**XXX:**
1130 1130  
1387 +* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1388 +* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1389 +* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1390 +* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1391 +* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1392 +* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1393 +* (% style="color:blue" %)**US915**(%%): frequency bands US915
1394 +* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1395 +* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1396 +* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1131 1131  
1398 += 9.Packing Info =
1132 1132  
1133 -1. Trouble Shooting     
1134 -11. Downlink doesn’t work, how to solve it?
1135 1135  
1136 -Please see this link for debug:
1401 +**Package Includes**:
1137 1137  
1138 -[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug]] 
1403 +* RS485-LN x 1
1404 +* Stick Antenna for LoRa RF part x 1
1405 +* Program cable x 1
1139 1139  
1407 +**Dimension and weight**:
1140 1140  
1409 +* Device Size: 13.5 x 7 x 3 cm
1410 +* Device Weight: 105g
1411 +* Package Size / pcs : 14.5 x 8 x 5 cm
1412 +* Weight / pcs : 170g
1141 1141  
1142 -1.
1143 -11. Why I can’t join TTN V3 in US915 /AU915 bands?
1414 += 10. FCC Caution for RS485LN-US915 =
1144 1144  
1145 -It might about the channels mapping. Please see for detail.
1416 +(((
1417 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1418 +)))
1146 1146  
1147 -[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1420 +(((
1421 +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.
1422 +)))
1148 1148  
1424 +(((
1425 +
1426 +)))
1149 1149  
1428 +(((
1429 +**IMPORTANT NOTE:**
1430 +)))
1150 1150  
1151 -1. Order Info
1432 +(((
1433 +**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:
1434 +)))
1152 1152  
1153 -**Part Number: RS485-BL-XXX**
1436 +(((
1437 +—Reorient or relocate the receiving antenna.
1438 +)))
1154 1154  
1155 -**XXX:**
1440 +(((
1441 +—Increase the separation between the equipment and receiver.
1442 +)))
1156 1156  
1157 -* **EU433**: frequency bands EU433
1158 -* **EU868**: frequency bands EU868
1159 -* **KR920**: frequency bands KR920
1160 -* **CN470**: frequency bands CN470
1161 -* **AS923**: frequency bands AS923
1162 -* **AU915**: frequency bands AU915
1163 -* **US915**: frequency bands US915
1164 -* **IN865**: frequency bands IN865
1165 -* **RU864**: frequency bands RU864
1166 -* **KZ865: **frequency bands KZ865
1444 +(((
1445 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1446 +)))
1167 1167  
1168 -1. Packing Info
1448 +(((
1449 +—Consult the dealer or an experienced radio/TV technician for help.
1450 +)))
1169 1169  
1170 -**Package Includes**:
1452 +(((
1453 +
1454 +)))
1171 1171  
1172 -* RS485-BL x 1
1173 -* Stick Antenna for LoRa RF part x 1
1174 -* Program cable x 1
1456 +(((
1457 +**FCC Radiation Exposure Statement:**
1458 +)))
1175 1175  
1176 -**Dimension and weight**:
1460 +(((
1461 +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.
1462 +)))
1177 1177  
1178 -* Device Size: 13.5 x 7 x 3 cm
1179 -* Device Weight: 105g
1180 -* Package Size / pcs : 14.5 x 8 x 5 cm
1181 -* Weight / pcs : 170g
1182 1182  
1183 -1. Support
1465 += 11. Support =
1184 1184  
1185 -* 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.
1186 -* 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
1187 -
1188 -[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1467 +* (((
1468 +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.
1469 +)))
1470 +* (((
1471 +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]].
1472 +)))
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