Last modified by Bei Jinggeng on 2025/01/16 11:36
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From version < 58.46 >
edited by Xiaoling
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To version < 60.7 >
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Summary

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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  
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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  )))
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66 66  ** Idle: 32mA@12v
67 67  ** 20dB Transmit: 65mA@12v
68 68  
72 +
69 69  **Interface for Model:**
70 70  
71 71  * RS485
72 72  * Power Input 7~~ 24V DC. 
73 73  
78 +
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  
100 +
101 +
95 95  == 1.3 Features ==
96 96  
97 97  * LoRaWAN Class A & Class C protocol (default Class C)
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103 103  * Support Modbus protocol
104 104  * Support Interrupt uplink (Since hardware version v1.2)
105 105  
113 +
114 +
106 106  == 1.4 Applications ==
107 107  
108 108  * Smart Buildings & Home Automation
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112 112  * Smart Cities
113 113  * Smart Factory
114 114  
124 +
125 +
115 115  == 1.5 Firmware Change log ==
116 116  
117 117  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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180 180  
181 181  [[image:1653268227651-549.png||height="592" width="720"]]
182 182  
194 +
183 183  (((
184 184  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:
185 185  )))
186 186  
187 187  (((
188 -**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
200 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
189 189  )))
190 190  
191 191  (((
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195 195  
196 196  [[image:1652953462722-299.png]]
197 197  
210 +
198 198  (((
199 199  (((
200 200  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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201 201  )))
202 202  
203 203  (((
204 -Add APP EUI in the application.
217 +**Add APP EUI in the application.**
205 205  )))
206 206  )))
207 207  
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217 217  
218 218  [[image:1652953542269-423.png||height="710" width="723"]]
219 219  
220 -Add APP KEY and DEV EUI
221 221  
234 +
235 +**Add APP KEY and DEV EUI**
236 +
222 222  [[image:1652953553383-907.png||height="514" width="724"]]
223 223  
224 224  
225 225  (((
226 -**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.
241 +(% 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.
227 227  )))
228 228  
229 229  [[image:1652953568895-172.png||height="232" width="724"]]
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310 310  )))
311 311  
312 312  
328 +
329 +
313 313  === 3.3.2 Configure sensors ===
314 314  
315 315  (((
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321 321  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
322 322  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
323 323  |AT+CFGDEV|(% style="width:110px" %)(((
341 +(((
324 324  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
343 +)))
325 325  
345 +(((
326 326  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
347 +)))
327 327  
349 +(((
328 328  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
351 +)))
329 329  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
330 330  
331 -
332 332  === 3.3.3 Configure read commands for each sampling ===
333 333  
334 334  (((
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1177 1177  )))
1178 1178  
1179 1179  (((
1202 +(((
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  )))
1205 +)))
1182 1182  
1183 1183  
1184 1184  == 3.7 Buttons ==
1185 1185  
1186 1186  
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"]]
1211 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1212 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1213 +|(% 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**
1214 +|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1215 +|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1192 1192  
1193 -
1194 1194  == 3.8 LEDs ==
1195 1195  
1196 1196  
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1250 1250  )))
1251 1251  
1252 1252  
1276 +(((
1253 1253  If device already joined network:
1278 +)))
1254 1254  
1255 1255  (% class="box infomessage" %)
1256 1256  (((
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1289 1289  
1290 1290  (% style="color:red" %)**Note:**
1291 1291  
1317 +(((
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
1322 +)))
1296 1296  
1297 1297  [[image:1654162478620-421.png]]
1298 1298  
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1321 1321  
1322 1322  [[image:1654162535040-878.png]]
1323 1323  
1351 +(((
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]].
1353 +)))
1325 1325  
1355 +(((
1326 1326  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1357 +)))
1327 1327  
1359 +(((
1328 1328  **Step3: **Open flashloader; choose the correct COM port to update.
1361 +)))
1329 1329  
1330 1330  (((
1331 1331  (((
1365 +(((
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  )))
1369 +)))
1335 1335  
1336 1336  
1337 1337  [[image:image-20220602175818-12.png]]

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