Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 79.2 >
edited by Xiaoling
on 2022/10/13 17:07
To version < 98.1 >
edited by Bei Jinggeng
on 2022/12/06 09:45
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
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30 30  
31 31  = 1.Introduction =
32 32  
33 -
34 34  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
35 35  
36 -(((
37 -(((
38 -(((
39 -
40 40  
36 +(((
41 41  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
42 42  )))
43 -)))
44 44  
45 45  (((
46 -(((
47 47  RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
48 48  )))
49 -)))
50 50  
51 51  (((
52 -(((
53 53  (% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
54 54  )))
55 -)))
56 56  
57 57  (((
58 -(((
59 59  (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
60 60  )))
61 61  
62 62  (((
63 63  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
64 -
65 -
66 66  )))
67 -)))
68 -)))
69 69  
56 +
70 70  (% aria-label="1653267211009-519.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653267211009-519.png||data-widget="image" height="419" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
71 71  
72 72  
73 -
74 74  == 1.2 Specifications ==
75 75  
76 76  
77 77  (% style="color:#037691" %)**Hardware System:**
78 78  
79 -* STM32L072CZT6 MCU
65 +* STM32L072xxxx MCU
80 80  * SX1276/78 Wireless Chip 
81 81  * Power Consumption (exclude RS485 device):
82 82  ** Idle: 32mA@12v
... ... @@ -109,7 +109,6 @@
109 109  * Packet engine up to 256 bytes with CRC
110 110  
111 111  
112 -
113 113  == 1.3 Features ==
114 114  
115 115  
... ... @@ -123,7 +123,6 @@
123 123  * Support Interrupt uplink (Since hardware version v1.2)
124 124  
125 125  
126 -
127 127  == 1.4 Applications ==
128 128  
129 129  
... ... @@ -135,7 +135,6 @@
135 135  * Smart Factory
136 136  
137 137  
138 -
139 139  == 1.5 Firmware Change log ==
140 140  
141 141  
... ... @@ -156,7 +156,6 @@
156 156  v1.0: Release
157 157  )))
158 158  
159 -
160 160  
161 161  )))
162 162  )))
... ... @@ -176,13 +176,11 @@
176 176  
177 177  (% 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" %)​
178 178  
179 -
180 180  
181 181  )))
182 182  
183 183  = 3. Operation Mode =
184 184  
185 -
186 186  == 3.1 How it works? ==
187 187  
188 188  
... ... @@ -191,7 +191,6 @@
191 191  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.
192 192  )))
193 193  
194 -
195 195  
196 196  )))
197 197  
... ... @@ -280,7 +280,6 @@
280 280  (% 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" %)​
281 281  
282 282  
283 -
284 284  == 3.3 Configure Commands to read data ==
285 285  
286 286  
... ... @@ -298,7 +298,6 @@
298 298  (% style="color:red" %)**Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1**
299 299  )))
300 300  
301 -
302 302  
303 303  )))
304 304  )))
... ... @@ -309,10 +309,10 @@
309 309  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:
310 310  
311 311  
312 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
289 +(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
313 313  |=(% style="width: 110px;" %)(((
314 314  **AT Commands**
315 -)))|=(% style="width: 190px;" %)(((
292 +)))|=(% style="width: 210px;" %)(((
316 316  **Description**
317 317  )))|=(% style="width: 190px;" %)(((
318 318  **Example**
... ... @@ -368,7 +368,6 @@
368 368  )))
369 369  
370 370  
371 -
372 372  === 3.3.2 Configure sensors ===
373 373  
374 374  
... ... @@ -380,8 +380,8 @@
380 380  )))
381 381  )))
382 382  
383 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
384 -|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
359 +(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
360 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 210px;" %)**Description**|=(% style="width: 190px;" %)**Example**
385 385  |AT+CFGDEV|(% style="width:110px" %)(((
386 386  (((
387 387  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
... ... @@ -397,7 +397,6 @@
397 397  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
398 398  
399 399  
400 -
401 401  === 3.3.3 Configure read commands for each sampling ===
402 402  
403 403  
... ... @@ -430,7 +430,7 @@
430 430  
431 431  (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
432 432  |(% style="width:496px" %)(((
433 -(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
408 +**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
434 434  
435 435  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
436 436  
... ... @@ -472,7 +472,6 @@
472 472  
473 473  (% 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" %)​
474 474  
475 -
476 476  
477 477  )))
478 478  
... ... @@ -516,11 +516,15 @@
516 516  Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
517 517  
518 518  
519 -1. PAYVER: Defined by AT+PAYVER
520 -1. PAYLOAD COUNT: Total how many uplinks of this sampling.
521 -1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
522 -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
493 +~1. PAYVER: Defined by AT+PAYVER
523 523  
495 +2. PAYLOAD COUNT: Total how many uplinks of this sampling.
496 +
497 +3. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
498 +
499 +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
500 +
501 +
524 524  (% 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" %)​
525 525  
526 526  
... ... @@ -557,7 +557,6 @@
557 557  (% 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" %)​
558 558  
559 559  
560 -
561 561  === 3.3.5 Uplink on demand ===
562 562  
563 563  
... ... @@ -570,7 +570,6 @@
570 570  (% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
571 571  
572 572  
573 -
574 574  === 3.3.6 Uplink on Interrupt ===
575 575  
576 576  
... ... @@ -582,17 +582,16 @@
582 582  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.
583 583  
584 584  
585 -
586 586  == 3.4 Uplink Payload ==
587 587  
588 588  
589 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:520px" %)
590 -|(% style="width:90px" %)(((
564 +(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:500px" %)
565 +|=(% scope="row" style="width: 60px;" %)(((
591 591  Size(bytes)
592 -)))|(% style="width:114px" %)1|(% style="width:353px" %)(((
567 +)))|(% style="width:80px" %)1|(% style="width:360px" %)(((
593 593  Length depends on the return from the commands
594 594  )))
595 -|(% style="width:90px" %)(((
570 +|=(% style="width: 90px;" %)(((
596 596  Value
597 597  )))|(% style="width:114px" %)(((
598 598  PAYLOAD_VER
... ... @@ -611,7 +611,6 @@
611 611  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
612 612  
613 613  
614 -
615 615  == 3.5 Configure RS485-LN via AT or Downlink ==
616 616  
617 617  
... ... @@ -643,7 +643,6 @@
643 643  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]]
644 644  
645 645  
646 -
647 647  === 3.5.2 Downlink Response(Since firmware v1.4) ===
648 648  
649 649  
... ... @@ -657,12 +657,10 @@
657 657  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)
658 658  
659 659  
660 -
661 661  === 3.5.3 Sensor related commands ===
662 662  
663 663  
664 664  
665 -
666 666  ==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
667 667  
668 668  
... ... @@ -1204,23 +1204,26 @@
1204 1204  )))
1205 1205  
1206 1206  
1178 +
1179 +
1207 1207  ==== (% style="color:blue" %)**Configure Databit (Since Version 1.4.0)**(%%) ====
1208 1208  
1182 +
1209 1209  * (((
1210 1210  (% style="color:#037691" %)** AT Command:**
1211 1211  )))
1212 1212  
1213 -**~ AT+DATABIT=7  **~/~/ Set the data bits to 7
1187 +(% style="color:#4472c4" %)** AT+DATABIT=7    **(%%)~/~/ Set the data bits to 7
1214 1214  
1215 -**~ AT+DATABIT=8  **~/~/ Set the data bits to 8
1189 +(% style="color:#4472c4" %)** AT+DATABIT=8    **(%%)~/~/ Set the data bits to 8
1216 1216  
1217 1217  * (((
1218 1218  (% style="color:#037691" %)**Downlink Payload:**
1219 1219  )))
1220 1220  
1221 -**~ A7 04 07**: Same as  AT+DATABIT=7
1195 +(% style="color:#4472c4" %)** A7 04 07**(%%): Same as  AT+DATABIT=7
1222 1222  
1223 -**~ A7 04 08**: Same as  AT+DATABIT=8
1197 +(% style="color:#4472c4" %)** A7 04 08**(%%): Same as  AT+DATABIT=8
1224 1224  
1225 1225  
1226 1226  
... ... @@ -1356,7 +1356,6 @@
1356 1356  [[image:image-20220824144240-1.png]]
1357 1357  
1358 1358  
1359 -
1360 1360  == 3.6 Listening mode for RS485 network ==
1361 1361  
1362 1362  
... ... @@ -1436,15 +1436,15 @@
1436 1436  )))
1437 1437  
1438 1438  (((
1439 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1412 +The Modbus master send a command: (% style="background-color:#ffc000" %)**01 03 00 00 00 02 c4 0b**
1440 1440  )))
1441 1441  
1442 1442  (((
1443 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1416 +And Modbus slave reply with: (% style="background-color:green" %)**01 03 04 00 00 00 00 fa 33**
1444 1444  )))
1445 1445  
1446 1446  (((
1447 -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
1420 +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**
1448 1448  
1449 1449  
1450 1450  )))
... ... @@ -1464,18 +1464,16 @@
1464 1464  )))
1465 1465  
1466 1466  
1467 -
1468 1468  == 3.7 Buttons ==
1469 1469  
1470 1470  
1471 1471  (% border="1.5" cellspacing="4" style="background-color:#ffffcc; width:430px" %)
1472 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1444 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 380px;" %)**Feature**
1473 1473  |(% 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**
1474 1474  |(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1475 1475  |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1476 1476  
1477 1477  
1478 -
1479 1479  == 3.8 LEDs ==
1480 1480  
1481 1481  
... ... @@ -1485,7 +1485,6 @@
1485 1485  |**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.
1486 1486  
1487 1487  
1488 -
1489 1489  = 4. Case Study =
1490 1490  
1491 1491  
... ... @@ -1492,10 +1492,8 @@
1492 1492  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]]
1493 1493  
1494 1494  
1495 -
1496 1496  = 5. Use AT Command =
1497 1497  
1498 -
1499 1499  == 5.1 Access AT Command ==
1500 1500  
1501 1501  
... ... @@ -1523,10 +1523,8 @@
1523 1523  )))
1524 1524  
1525 1525  
1526 -
1527 1527  == 5.2 Common AT Command Sequence ==
1528 1528  
1529 -
1530 1530  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1531 1531  
1532 1532  
... ... @@ -1587,10 +1587,8 @@
1587 1587  (% 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" %)​
1588 1588  
1589 1589  
1590 -
1591 1591  = 6. FAQ =
1592 1592  
1593 -
1594 1594  == 6.1 How to upgrade the image? ==
1595 1595  
1596 1596  
... ... @@ -1657,7 +1657,6 @@
1657 1657  (% 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" %)​
1658 1658  
1659 1659  
1660 -
1661 1661  == 6.2 How to change the LoRa Frequency Bands/Region? ==
1662 1662  
1663 1663  
... ... @@ -1664,7 +1664,6 @@
1664 1664  User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1665 1665  
1666 1666  
1667 -
1668 1668  == 6.3 How many RS485-Slave can RS485-LN connects? ==
1669 1669  
1670 1670  
... ... @@ -1671,7 +1671,6 @@
1671 1671  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"]].
1672 1672  
1673 1673  
1674 -
1675 1675  == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1676 1676  
1677 1677  
... ... @@ -1680,14 +1680,12 @@
1680 1680  Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1681 1681  
1682 1682  
1683 -
1684 1684  == 6.5 Can i use point to point communication for RS485-LN? ==
1685 1685  
1686 1686  
1687 -Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1647 +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]].
1688 1688  
1689 1689  
1690 -
1691 1691  == 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1692 1692  
1693 1693  
... ... @@ -1694,10 +1694,122 @@
1694 1694  [[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/]]
1695 1695  
1696 1696  
1656 +== 6.7 How to judge whether there is a problem with the set COMMAND ==
1697 1697  
1698 -= 7. Trouble Shooting =
1658 +=== 6.7.1 Introduce: ===
1699 1699  
1700 1700  
1661 +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:
1662 +
1663 +1. Test if Modbus-MTU works with PC commands.
1664 +1. Check if RS485-LN sent the expected command to Mobus-MTU
1665 +1. Check if Modbus-MTU return back the expected result to RS485-LN.
1666 +1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1667 +
1668 +[[image:image-20221130104310-1.png||height="380" width="680"]]
1669 +
1670 +
1671 +Example Connection:
1672 +
1673 +[[image:image-20221130104310-2.png]]
1674 +
1675 +
1676 +=== 6.7.2 Set up PC to monitor RS485 network With Serial tool ===
1677 +
1678 +
1679 +(% style="color:red" %)**Note: Receive and send set to hex mode**
1680 +
1681 +[[image:image-20221130104310-3.png||height="616" width="714"]]
1682 +
1683 +
1684 +=== 6.7.3 With ModRSsim2: ===
1685 +
1686 +
1687 +(% style="color:blue" %)**(1) Select serial port MODBUS RS-232**
1688 +
1689 +[[image:image-20221130104310-4.png||height="390" width="865"]]
1690 +
1691 +
1692 +(% style="color:blue" %)**(2) Click the serial port icon**
1693 +
1694 +[[image:image-20221130104310-5.png||height="392" width="870"]]
1695 +
1696 +
1697 +(% style="color:blue" %)**(3) After selecting the correct serial port and baud rate, click ok**
1698 +
1699 +[[image:image-20221130104310-6.png]]
1700 +
1701 +
1702 +(% style="color:blue" %)**(4) Click the comms.**
1703 +
1704 +[[image:image-20221130104310-7.png||height="376" width="835"]]
1705 +
1706 +(% class="wikigeneratedid" id="HRunRS485-LN2FBLcommandandmonitorifitiscorrect." %)
1707 +**Run RS485-LN/BL command and monitor if it is correct.**
1708 +
1709 +
1710 +=== 6.7.4 Example – Test the CFGDEV command ===
1711 +
1712 +
1713 +RS485-LN sent below command:
1714 +
1715 +(% style="color:blue" %)**AT+CFGDEV=01 03 20 00 01 85 c0,1**(%%) to RS485 network, and PC is able to get this command and return commands from MTU to show in the serial tool.
1716 +
1717 +
1718 +We can see the output from the Serial port tool to analyze. And check if they are expected result.
1719 +
1720 +[[image:image-20221130104310-8.png||height="214" width="797"]]
1721 +
1722 +
1723 +We can also use (% style="color:blue" %)**ModRSsim2**(%%) to see the output.
1724 +
1725 +[[image:image-20221130104310-9.png||height="531" width="729"]]
1726 +
1727 +
1728 +=== 6.7.5 Example – Test CMD command sets. ===
1729 +
1730 +
1731 +Run (% style="color:blue" %)**AT+SENSORVALUE=1**(%%) to test the CMD commands set in RS485-LN.
1732 +
1733 +
1734 +(% style="color:blue" %)**Serial port tool:**
1735 +
1736 +[[image:image-20221130104310-10.png||height="339" width="844"]]
1737 +
1738 +
1739 +(% style="color:blue" %)**ModRSsim2:**
1740 +
1741 +[[image:image-20221130104310-11.png||height="281" width="962"]]
1742 +
1743 +
1744 +=== 6.7.6 Test with PC ===
1745 +
1746 +
1747 +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.
1748 +
1749 +
1750 +Or User can send the working commands set in PC serial tool to Dragino Support to check what should be configured in RS485-LN.
1751 +
1752 +(% style="color:blue" %)**Connection method：**
1753 +
1754 +[[image:image-20221130104310-12.png]]
1755 +
1756 +
1757 +(% style="color:blue" %)**Link situation:**
1758 +
1759 +[[image:image-20221130104310-13.png||height="458" width="486"]]
1760 +
1761 +
1762 +[[image:image-20221130104310-14.png||height="371" width="823"]]
1763 +
1764 +
1765 +== 6.8 Where to get the decoder for RS485-LN? ==
1766 +
1767 +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 for decoders (no intermediate data parsing part involved)
1768 +
1769 +
1770 += 7. Trouble Shooting =
1771 +
1701 1701  == 7.1 Downlink doesn't work, how to solve it? ==
1702 1702  
1703 1703  
... ... @@ -1704,7 +1704,6 @@
1704 1704  Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1705 1705  
1706 1706  
1707 -
1708 1708  == 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1709 1709  
1710 1710  
... ... @@ -1711,7 +1711,6 @@
1711 1711  It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1712 1712  
1713 1713  
1714 -
1715 1715  = 8. Order Info =
1716 1716  
1717 1717  
... ... @@ -1731,7 +1731,6 @@
1731 1731  * (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1732 1732  
1733 1733  
1734 -
1735 1735  = 9.Packing Info =
1736 1736  
1737 1737  
... ... @@ -1749,7 +1749,6 @@
1749 1749  * Weight / pcs : 170g
1750 1750  
1751 1751  
1752 -
1753 1753  = 10. FCC Caution for RS485LN-US915 =
1754 1754  
1755 1755  
... ... @@ -1802,7 +1802,6 @@
1802 1802  )))
1803 1803  
1804 1804  
1805 -
1806 1806  = 11. Support =
1807 1807  
1808 1808  
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