<
From version < 58.41 >
edited by Xiaoling
on 2022/06/06 13:34
To version < 60.14 >
edited by Xiaoling
on 2022/06/14 11:26
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Title
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1 -RS485-LN – RS485 to LoRaWAN Converter
1 +RS485-LN – RS485 to LoRaWAN Converter User Manual
Content
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3 3  
4 4  
5 5  
6 -**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 9  
... ... @@ -25,6 +25,8 @@
25 25  (((
26 26  (((
27 27  (((
27 +
28 +
28 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.
29 29  )))
30 30  )))
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48 48  
49 49  (((
50 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]]
52 +
53 +
51 51  )))
52 52  )))
53 53  )))
... ... @@ -93,6 +93,8 @@
93 93  * Packet engine up to 256 bytes with CRC
94 94  
95 95  
99 +
100 +
96 96  == 1.3 Features ==
97 97  
98 98  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -105,6 +105,8 @@
105 105  * Support Interrupt uplink (Since hardware version v1.2)
106 106  
107 107  
113 +
114 +
108 108  == 1.4 Applications ==
109 109  
110 110  * Smart Buildings & Home Automation
... ... @@ -115,6 +115,8 @@
115 115  * Smart Factory
116 116  
117 117  
125 +
126 +
118 118  == 1.5 Firmware Change log ==
119 119  
120 120  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -183,12 +183,13 @@
183 183  
184 184  [[image:1653268227651-549.png||height="592" width="720"]]
185 185  
195 +
186 186  (((
187 187  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:
188 188  )))
189 189  
190 190  (((
191 -**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
201 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
192 192  )))
193 193  
194 194  (((
... ... @@ -198,6 +198,7 @@
198 198  
199 199  [[image:1652953462722-299.png]]
200 200  
211 +
201 201  (((
202 202  (((
203 203  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
... ... @@ -204,7 +204,7 @@
204 204  )))
205 205  
206 206  (((
207 -Add APP EUI in the application.
218 +**Add APP EUI in the application.**
208 208  )))
209 209  )))
210 210  
... ... @@ -220,13 +220,15 @@
220 220  
221 221  [[image:1652953542269-423.png||height="710" width="723"]]
222 222  
223 -Add APP KEY and DEV EUI
224 224  
235 +
236 +**Add APP KEY and DEV EUI**
237 +
225 225  [[image:1652953553383-907.png||height="514" width="724"]]
226 226  
227 227  
228 228  (((
229 -**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
242 +(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
230 230  )))
231 231  
232 232  [[image:1652953568895-172.png||height="232" width="724"]]
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237 237  (((
238 238  (((
239 239  (((
240 -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.
253 +There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-LNviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
241 241  )))
242 242  )))
243 243  
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312 312  )))
313 313  )))
314 314  
328 +
315 315  === 3.3.2 Configure sensors ===
316 316  
317 317  (((
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323 323  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
324 324  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
325 325  |AT+CFGDEV|(% style="width:110px" %)(((
340 +(((
326 326  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
342 +)))
327 327  
344 +(((
328 328  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
346 +)))
329 329  
348 +(((
330 330  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
350 +)))
331 331  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
332 332  
353 +
333 333  === 3.3.3 Configure read commands for each sampling ===
334 334  
335 335  (((
... ... @@ -342,7 +342,7 @@
342 342  During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
343 343  
344 344  
345 -**Each RS485 commands include two parts:**
366 +(% style="color:#037691" %)**Each RS485 commands include two parts:**
346 346  
347 347  ~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.
348 348  
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357 357  Below are examples for the how above AT Commands works.
358 358  
359 359  
360 -**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
381 +(% style="color:#037691" %)**AT+COMMANDx **(%%)**: **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
361 361  
362 362  (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
363 363  |(% style="width:496px" %)(((
364 -**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
385 +(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
365 365  
366 366  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
367 367  
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373 373  In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
374 374  
375 375  
376 -**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
397 +(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
377 377  
378 378  (% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
379 379  |(% style="width:510px" %)(((
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386 386  
387 387  **Examples:**
388 388  
389 -* Grab bytes:
410 +* (% style="color:#037691" %)**Grab bytes**
390 390  
391 391  [[image:image-20220602153621-1.png]]
392 392  
393 393  
394 -* Grab a section.
415 +* (% style="color:#037691" %)**Grab a section**
395 395  
396 396  [[image:image-20220602153621-2.png]]
397 397  
398 398  
399 -* Grab different sections.
420 +* (% style="color:#037691" %)**Grab different sections**
400 400  
401 401  [[image:image-20220602153621-3.png]]
402 402  
424 +
403 403  
404 404  )))
405 405  
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508 508  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
509 509  
510 510  
511 -== 3.5 Configure RS485-BL via AT or Downlink ==
533 +== 3.5 Configure RS485-LN via AT or Downlink ==
512 512  
513 513  (((
514 514  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
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674 674  ==== **Set Payload version** ====
675 675  
676 676  (((
677 -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.
699 +This is the first byte of the uplink payload. RS485-LN can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
678 678  )))
679 679  
680 680  * (((
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772 772  XX XX XX XX: AT+COMMAND or AT+DATACUT command
773 773  )))
774 774  * (((
775 -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.
797 +YY:  If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
776 776  )))
777 777  
778 778  (((
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1107 1107  )))
1108 1108  
1109 1109  (% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1110 -|=(% style="width: 161px;" %)(((
1111 -**Command example:**
1112 -)))|=(% style="width: 337px;" %)(((
1132 +|=(% style="width: 100px;" %)(((
1133 +**Command example**
1134 +)))|=(% style="width: 400px;" %)(((
1113 1113  **Function**
1114 1114  )))
1115 -|(% style="width:161px" %)(((
1137 +|(% style="width:100px" %)(((
1116 1116  AT+RXMODE=1,10
1117 -)))|(% style="width:337px" %)(((
1139 +)))|(% style="width:400px" %)(((
1118 1118  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.
1119 1119  )))
1120 -|(% style="width:161px" %)(((
1142 +|(% style="width:100px" %)(((
1121 1121  AT+RXMODE=2,500
1122 -)))|(% style="width:337px" %)(((
1144 +)))|(% style="width:400px" %)(((
1123 1123  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
1124 1124  )))
1125 -|(% style="width:161px" %)(((
1147 +|(% style="width:100px" %)(((
1126 1126  AT+RXMODE=0,0
1127 -)))|(% style="width:337px" %)(((
1149 +)))|(% style="width:400px" %)(((
1128 1128  Disable listening mode. This is the default settings.
1129 1129  )))
1130 -|(% style="width:161px" %)(((
1152 +|(% style="width:100px" %)(((
1131 1131  
1132 -)))|(% style="width:337px" %)(((
1154 +)))|(% style="width:400px" %)(((
1133 1133  A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1134 1134  )))
1135 1135  
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1178 1178  )))
1179 1179  
1180 1180  (((
1203 +(((
1181 1181  (% 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.
1182 1182  )))
1206 +)))
1183 1183  
1184 1184  
1185 1185  == 3.7 Buttons ==
1186 1186  
1187 1187  
1188 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1189 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1190 -|(% 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**
1191 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1192 -|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1212 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1213 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1214 +|(% 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**
1215 +|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1216 +|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1193 1193  
1194 1194  == 3.8 LEDs ==
1195 1195  
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1209 1209  == 5.1 Access AT Command ==
1210 1210  
1211 1211  (((
1212 -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.
1236 +RS485-LN supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-LN to use AT command, as below.
1213 1213  )))
1214 1214  
1215 1215  [[image:1654162355560-817.png]]
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1216 1216  
1217 1217  
1218 1218  (((
1219 -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:
1243 +In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-LN. The default password is 123456. Below is the output for reference:
1220 1220  )))
1221 1221  
1222 1222  [[image:1654162368066-342.png]]
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1250 1250  )))
1251 1251  
1252 1252  
1277 +(((
1253 1253  If device already joined network:
1279 +)))
1254 1254  
1255 1255  (% class="box infomessage" %)
1256 1256  (((
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1289 1289  
1290 1290  (% style="color:red" %)**Note:**
1291 1291  
1318 +(((
1292 1292  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1293 1293  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1294 1294  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.
1295 1295  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
1323 +)))
1296 1296  
1297 1297  [[image:1654162478620-421.png]]
1298 1298  
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1321 1321  
1322 1322  [[image:1654162535040-878.png]]
1323 1323  
1352 +(((
1324 1324  **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]].
1354 +)))
1325 1325  
1356 +(((
1326 1326  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1358 +)))
1327 1327  
1360 +(((
1328 1328  **Step3: **Open flashloader; choose the correct COM port to update.
1362 +)))
1329 1329  
1330 1330  (((
1331 1331  (((
1366 +(((
1332 1332  (% 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.
1333 1333  )))
1334 1334  )))
1370 +)))
1335 1335  
1336 1336  
1337 1337  [[image:image-20220602175818-12.png]]
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1353 1353  User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1354 1354  
1355 1355  
1356 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
1392 +== 6.3 How many RS485-Slave can RS485-LN connects? ==
1357 1357  
1358 -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"]].
1394 +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"]].
1359 1359  
1360 1360  
1361 1361  == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
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