Last modified by Bei Jinggeng on 2025/01/16 11:36
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From version < 60.6 >
edited by Xiaoling
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To version < 58.48 >
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Title
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1 -RS485-LN – RS485 to LoRaWAN Converter User Manual
1 +RS485-LN – RS485 to LoRaWAN Converter
Content
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3 3  
4 4  
5 5  
6 +**RS485-LN – RS485 to LoRaWAN Converter User Manual**
6 6  
7 7  
8 8  
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24 24  (((
25 25  (((
26 26  (((
27 -
28 -
29 29  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.
30 30  )))
31 31  )))
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49 49  
50 50  (((
51 51  (% 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 -
54 54  )))
55 55  )))
56 56  )))
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69 69  ** Idle: 32mA@12v
70 70  ** 20dB Transmit: 65mA@12v
71 71  
72 -
73 -
74 74  **Interface for Model:**
75 75  
76 76  * RS485
77 77  * Power Input 7~~ 24V DC. 
78 78  
79 -
80 -
81 81  **LoRa Spec:**
82 82  
83 83  * Frequency Range:
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99 99  * Automatic RF Sense and CAD with ultra-fast AFC.
100 100  * Packet engine up to 256 bytes with CRC
101 101  
102 -
103 -
104 -
105 105  == 1.3 Features ==
106 106  
107 107  * LoRaWAN Class A & Class C protocol (default Class C)
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113 113  * Support Modbus protocol
114 114  * Support Interrupt uplink (Since hardware version v1.2)
115 115  
116 -
117 -
118 -
119 119  == 1.4 Applications ==
120 120  
121 121  * Smart Buildings & Home Automation
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125 125  * Smart Cities
126 126  * Smart Factory
127 127  
128 -
129 -
130 -
131 131  == 1.5 Firmware Change log ==
132 132  
133 133  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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196 196  
197 197  [[image:1653268227651-549.png||height="592" width="720"]]
198 198  
199 -
200 200  (((
201 201  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:
202 202  )))
203 203  
204 204  (((
205 -**(% style="color:blue" %)Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
188 +**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
206 206  )))
207 207  
208 208  (((
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212 212  
213 213  [[image:1652953462722-299.png]]
214 214  
215 -
216 216  (((
217 217  (((
218 218  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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219 219  )))
220 220  
221 221  (((
222 -**Add APP EUI in the application.**
204 +Add APP EUI in the application.
223 223  )))
224 224  )))
225 225  
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235 235  
236 236  [[image:1652953542269-423.png||height="710" width="723"]]
237 237  
220 +Add APP KEY and DEV EUI
238 238  
239 -
240 -**Add APP KEY and DEV EUI**
241 -
242 242  [[image:1652953553383-907.png||height="514" width="724"]]
243 243  
244 244  
245 245  (((
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.
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.
247 247  )))
248 248  
249 249  [[image:1652953568895-172.png||height="232" width="724"]]
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329 329  )))
330 330  )))
331 331  
312 +
332 332  === 3.3.2 Configure sensors ===
333 333  
334 334  (((
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340 340  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
341 341  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
342 342  |AT+CFGDEV|(% style="width:110px" %)(((
343 -(((
344 344  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
345 -)))
346 346  
347 -(((
348 348  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
349 -)))
350 350  
351 -(((
352 352  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
353 -)))
354 354  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
355 355  
331 +
356 356  === 3.3.3 Configure read commands for each sampling ===
357 357  
358 358  (((
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1201 1201  )))
1202 1202  
1203 1203  (((
1204 -(((
1205 1205  (% 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.
1206 1206  )))
1207 -)))
1208 1208  
1209 1209  
1210 1210  == 3.7 Buttons ==
1211 1211  
1212 1212  
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"]]
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"]]
1218 1218  
1193 +
1219 1219  == 3.8 LEDs ==
1220 1220  
1221 1221  
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1224 1224  |**PWR**|Always on if there is power
1225 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.
1226 1226  
1202 +
1227 1227  = 4. Case Study =
1228 1228  
1229 1229  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]]
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1275 1275  )))
1276 1276  
1277 1277  
1278 -(((
1279 1279  If device already joined network:
1280 -)))
1281 1281  
1282 1282  (% class="box infomessage" %)
1283 1283  (((
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1316 1316  
1317 1317  (% style="color:red" %)**Note:**
1318 1318  
1319 -(((
1320 1320  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1321 1321  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1322 1322  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.
1323 1323  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 -)))
1325 1325  
1326 1326  [[image:1654162478620-421.png]]
1327 1327  
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1350 1350  
1351 1351  [[image:1654162535040-878.png]]
1352 1352  
1353 -(((
1354 1354  **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 -)))
1356 1356  
1357 -(((
1358 1358  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1359 -)))
1360 1360  
1361 -(((
1362 1362  **Step3: **Open flashloader; choose the correct COM port to update.
1363 -)))
1364 1364  
1365 1365  (((
1366 1366  (((
1367 -(((
1368 1368  (% 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.
1369 1369  )))
1370 1370  )))
1371 -)))
1372 1372  
1373 1373  
1374 1374  [[image:image-20220602175818-12.png]]

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