Last modified by Bei Jinggeng on 2025/01/16 11:36
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From version < 58.23 >
edited by Xiaoling
on 2022/06/06 11:26
To version < 60.6 >
edited by Xiaoling
on 2022/06/14 11:13
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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  )))
... ... @@ -48,6 +48,8 @@
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  )))
... ... @@ -66,11 +66,15 @@
66 66  ** Idle: 32mA@12v
67 67  ** 20dB Transmit: 65mA@12v
68 68  
72 +
73 +
69 69  **Interface for Model:**
70 70  
71 71  * RS485
72 72  * Power Input 7~~ 24V DC. 
73 73  
79 +
80 +
74 74  **LoRa Spec:**
75 75  
76 76  * Frequency Range:
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92 92  * Automatic RF Sense and CAD with ultra-fast AFC.
93 93  * Packet engine up to 256 bytes with CRC
94 94  
102 +
103 +
104 +
95 95  == 1.3 Features ==
96 96  
97 97  * LoRaWAN Class A & Class C protocol (default Class C)
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104 104  * Support Interrupt uplink (Since hardware version v1.2)
105 105  
106 106  
117 +
118 +
107 107  == 1.4 Applications ==
108 108  
109 109  * Smart Buildings & Home Automation
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114 114  * Smart Factory
115 115  
116 116  
129 +
130 +
117 117  == 1.5 Firmware Change log ==
118 118  
119 119  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -182,12 +182,13 @@
182 182  
183 183  [[image:1653268227651-549.png||height="592" width="720"]]
184 184  
199 +
185 185  (((
186 186  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:
187 187  )))
188 188  
189 189  (((
190 -**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
205 +**(% style="color:blue" %)Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
191 191  )))
192 192  
193 193  (((
... ... @@ -197,6 +197,7 @@
197 197  
198 198  [[image:1652953462722-299.png]]
199 199  
215 +
200 200  (((
201 201  (((
202 202  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
... ... @@ -203,7 +203,7 @@
203 203  )))
204 204  
205 205  (((
206 -Add APP EUI in the application.
222 +**Add APP EUI in the application.**
207 207  )))
208 208  )))
209 209  
... ... @@ -219,13 +219,15 @@
219 219  
220 220  [[image:1652953542269-423.png||height="710" width="723"]]
221 221  
222 -Add APP KEY and DEV EUI
223 223  
239 +
240 +**Add APP KEY and DEV EUI**
241 +
224 224  [[image:1652953553383-907.png||height="514" width="724"]]
225 225  
226 226  
227 227  (((
228 -**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.
246 +**(% 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.
229 229  )))
230 230  
231 231  [[image:1652953568895-172.png||height="232" width="724"]]
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235 235  
236 236  (((
237 237  (((
256 +(((
238 238  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.
239 239  )))
259 +)))
240 240  
241 241  (((
262 +(((
242 242  (% 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
264 +)))
243 243  
244 244  
245 245  )))
... ... @@ -307,8 +307,6 @@
307 307  )))
308 308  )))
309 309  
310 -
311 -
312 312  === 3.3.2 Configure sensors ===
313 313  
314 314  (((
... ... @@ -320,15 +320,19 @@
320 320  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
321 321  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
322 322  |AT+CFGDEV|(% style="width:110px" %)(((
343 +(((
323 323  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
345 +)))
324 324  
347 +(((
325 325  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
349 +)))
326 326  
351 +(((
327 327  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
353 +)))
328 328  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
329 329  
330 -
331 -
332 332  === 3.3.3 Configure read commands for each sampling ===
333 333  
334 334  (((
... ... @@ -1106,29 +1106,29 @@
1106 1106  )))
1107 1107  
1108 1108  (% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1109 -|=(% style="width: 161px;" %)(((
1110 -**Command example:**
1111 -)))|=(% style="width: 337px;" %)(((
1133 +|=(% style="width: 100px;" %)(((
1134 +**Command example**
1135 +)))|=(% style="width: 400px;" %)(((
1112 1112  **Function**
1113 1113  )))
1114 -|(% style="width:161px" %)(((
1138 +|(% style="width:100px" %)(((
1115 1115  AT+RXMODE=1,10
1116 -)))|(% style="width:337px" %)(((
1140 +)))|(% style="width:400px" %)(((
1117 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 1118  )))
1119 -|(% style="width:161px" %)(((
1143 +|(% style="width:100px" %)(((
1120 1120  AT+RXMODE=2,500
1121 -)))|(% style="width:337px" %)(((
1145 +)))|(% style="width:400px" %)(((
1122 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 1123  )))
1124 -|(% style="width:161px" %)(((
1148 +|(% style="width:100px" %)(((
1125 1125  AT+RXMODE=0,0
1126 -)))|(% style="width:337px" %)(((
1150 +)))|(% style="width:400px" %)(((
1127 1127  Disable listening mode. This is the default settings.
1128 1128  )))
1129 -|(% style="width:161px" %)(((
1153 +|(% style="width:100px" %)(((
1130 1130  
1131 -)))|(% style="width:337px" %)(((
1155 +)))|(% style="width:400px" %)(((
1132 1132  A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1133 1133  )))
1134 1134  
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1177 1177  )))
1178 1178  
1179 1179  (((
1204 +(((
1180 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 1181  )))
1207 +)))
1182 1182  
1183 1183  
1184 1184  == 3.7 Buttons ==
1185 1185  
1186 1186  
1187 -(% border="1" style="background-color:#f7faff; width:500px" %)
1188 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1189 -|**ACT**|(% style="width:1420px" %)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 -|**RST**|(% style="width:1420px" %)Reboot RS485
1191 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1213 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1214 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1215 +|(% 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**
1216 +|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1217 +|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1192 1192  
1193 -
1194 -
1195 1195  == 3.8 LEDs ==
1196 1196  
1197 -(% border="1" style="background-color:#f7faff; width:500px" %)
1198 -|=**LEDs**|=**Feature**
1221 +
1222 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1223 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1199 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.
1225 +|**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.
1201 1201  
1202 1202  = 4. Case Study =
1203 1203  
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1208 1208  
1209 1209  == 5.1 Access AT Command ==
1210 1210  
1236 +(((
1211 1211  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.
1238 +)))
1212 1212  
1213 1213  [[image:1654162355560-817.png]]
1214 1214  
1215 1215  
1243 +(((
1216 1216  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:
1245 +)))
1217 1217  
1218 1218  [[image:1654162368066-342.png]]
1219 1219  
1220 1220  
1250 +(((
1221 1221  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/]]
1252 +)))
1222 1222  
1223 1223  
1255 +
1224 1224  == 5.2 Common AT Command Sequence ==
1225 1225  
1226 1226  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1243,7 +1243,9 @@
1243 1243  )))
1244 1244  
1245 1245  
1278 +(((
1246 1246  If device already joined network:
1280 +)))
1247 1247  
1248 1248  (% class="box infomessage" %)
1249 1249  (((
... ... @@ -1282,10 +1282,12 @@
1282 1282  
1283 1283  (% style="color:red" %)**Note:**
1284 1284  
1319 +(((
1285 1285  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1286 1286  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1287 1287  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.
1288 1288  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
1324 +)))
1289 1289  
1290 1290  [[image:1654162478620-421.png]]
1291 1291  
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1294 1294  
1295 1295  == 6.1 How to upgrade the image? ==
1296 1296  
1333 +(((
1297 1297  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1335 +)))
1298 1298  
1299 -* Support new features
1300 -* For bug fix
1301 -* Change LoRaWAN bands.
1337 +* (((
1338 +Support new features
1339 +)))
1340 +* (((
1341 +For bug fix
1342 +)))
1343 +* (((
1344 +Change LoRaWAN bands.
1345 +)))
1302 1302  
1347 +(((
1303 1303  Below shows the hardware connection for how to upload an image to RS485-LN:
1349 +)))
1304 1304  
1305 1305  [[image:1654162535040-878.png]]
1306 1306  
1353 +(((
1307 1307  **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]].
1355 +)))
1308 1308  
1357 +(((
1309 1309  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1359 +)))
1310 1310  
1361 +(((
1311 1311  **Step3: **Open flashloader; choose the correct COM port to update.
1363 +)))
1312 1312  
1313 1313  (((
1366 +(((
1367 +(((
1314 1314  (% 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.
1315 1315  )))
1370 +)))
1371 +)))
1316 1316  
1317 1317  
1318 1318  [[image:image-20220602175818-12.png]]
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1375 1375  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1376 1376  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1377 1377  
1378 -
1379 1379  = 9.Packing Info =
1380 1380  
1381 1381  
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1392 1392  * Package Size / pcs : 14.5 x 8 x 5 cm
1393 1393  * Weight / pcs : 170g
1394 1394  
1395 -
1396 1396  = 10. FCC Caution for RS485LN-US915 =
1397 1397  
1398 1398  (((

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