Last modified by Bei Jinggeng on 2025/01/16 11:36
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From version < 60.4 >
edited by Xiaoling
on 2022/06/14 11:06
To version < 58.49 >
edited by Xiaoling
on 2022/06/06 13:45
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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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325 325  )))
326 326  )))
327 327  
312 +
328 328  === 3.3.2 Configure sensors ===
329 329  
330 330  (((
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336 336  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
337 337  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
338 338  |AT+CFGDEV|(% style="width:110px" %)(((
339 -(((
340 340  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
341 -)))
342 342  
343 -(((
344 344  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
345 -)))
346 346  
347 -(((
348 348  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
349 -)))
350 350  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
351 351  
331 +
352 352  === 3.3.3 Configure read commands for each sampling ===
353 353  
354 354  (((
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1206 1206  == 3.7 Buttons ==
1207 1207  
1208 1208  
1209 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1210 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1211 -|(% 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**
1212 -|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1213 -|(% 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"]]
1214 1214  
1195 +
1215 1215  == 3.8 LEDs ==
1216 1216  
1217 1217  
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1220 1220  |**PWR**|Always on if there is power
1221 1221  |**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.
1222 1222  
1204 +
1223 1223  = 4. Case Study =
1224 1224  
1225 1225  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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1271 1271  )))
1272 1272  
1273 1273  
1274 -(((
1275 1275  If device already joined network:
1276 -)))
1277 1277  
1278 1278  (% class="box infomessage" %)
1279 1279  (((
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1312 1312  
1313 1313  (% style="color:red" %)**Note:**
1314 1314  
1315 -(((
1316 1316  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1317 1317  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1318 1318  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.
1319 1319  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
1320 -)))
1321 1321  
1322 1322  [[image:1654162478620-421.png]]
1323 1323  
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1346 1346  
1347 1347  [[image:1654162535040-878.png]]
1348 1348  
1349 -(((
1350 1350  **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]].
1351 -)))
1352 1352  
1353 -(((
1354 1354  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1355 -)))
1356 1356  
1357 -(((
1358 1358  **Step3: **Open flashloader; choose the correct COM port to update.
1359 -)))
1360 1360  
1361 1361  (((
1362 1362  (((
1363 -(((
1364 1364  (% 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.
1365 1365  )))
1366 1366  )))
1367 -)))
1368 1368  
1369 1369  
1370 1370  [[image:image-20220602175818-12.png]]

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