Last modified by Bei Jinggeng on 2025/01/16 11:36
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From version < 60.3 >
edited by Xiaoling
on 2022/06/14 11:06
To version < 58.50 >
edited by Xiaoling
on 2022/06/06 13:46
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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 73  **Interface for Model:**
74 74  
75 75  * RS485
76 76  * Power Input 7~~ 24V DC. 
77 77  
78 -
79 79  **LoRa Spec:**
80 80  
81 81  * Frequency Range:
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97 97  * Automatic RF Sense and CAD with ultra-fast AFC.
98 98  * Packet engine up to 256 bytes with CRC
99 99  
100 -
101 -
102 -
103 103  == 1.3 Features ==
104 104  
105 105  * LoRaWAN Class A & Class C protocol (default Class C)
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111 111  * Support Modbus protocol
112 112  * Support Interrupt uplink (Since hardware version v1.2)
113 113  
114 -
115 -
116 -
117 117  == 1.4 Applications ==
118 118  
119 119  * Smart Buildings & Home Automation
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123 123  * Smart Cities
124 124  * Smart Factory
125 125  
126 -
127 -
128 -
129 129  == 1.5 Firmware Change log ==
130 130  
131 131  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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323 323  )))
324 324  )))
325 325  
312 +
326 326  === 3.3.2 Configure sensors ===
327 327  
328 328  (((
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334 334  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
335 335  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
336 336  |AT+CFGDEV|(% style="width:110px" %)(((
337 -(((
338 338  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
339 -)))
340 340  
341 -(((
342 342  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
343 -)))
344 344  
345 -(((
346 346  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
347 -)))
348 348  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
349 349  
331 +
350 350  === 3.3.3 Configure read commands for each sampling ===
351 351  
352 352  (((
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1204 1204  == 3.7 Buttons ==
1205 1205  
1206 1206  
1207 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1208 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1209 -|(% 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**
1210 -|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1211 -|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1189 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1190 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1191 +|(% 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**
1192 +|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1193 +|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1212 1212  
1195 +
1213 1213  == 3.8 LEDs ==
1214 1214  
1215 1215  
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1218 1218  |**PWR**|Always on if there is power
1219 1219  |**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.
1220 1220  
1204 +
1221 1221  = 4. Case Study =
1222 1222  
1223 1223  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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1269 1269  )))
1270 1270  
1271 1271  
1272 -(((
1273 1273  If device already joined network:
1274 -)))
1275 1275  
1276 1276  (% class="box infomessage" %)
1277 1277  (((
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1310 1310  
1311 1311  (% style="color:red" %)**Note:**
1312 1312  
1313 -(((
1314 1314  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1315 1315  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1316 1316  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.
1317 1317  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
1318 -)))
1319 1319  
1320 1320  [[image:1654162478620-421.png]]
1321 1321  
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1344 1344  
1345 1345  [[image:1654162535040-878.png]]
1346 1346  
1347 -(((
1348 1348  **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]].
1349 -)))
1350 1350  
1351 -(((
1352 1352  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1353 -)))
1354 1354  
1355 -(((
1356 1356  **Step3: **Open flashloader; choose the correct COM port to update.
1357 -)))
1358 1358  
1359 1359  (((
1360 1360  (((
1361 -(((
1362 1362  (% 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.
1363 1363  )))
1364 1364  )))
1365 -)))
1366 1366  
1367 1367  
1368 1368  [[image:image-20220602175818-12.png]]

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