Last modified by Bei Jinggeng on 2025/01/16 11:36
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From version < 58.41 >
edited by Xiaoling
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To version < 60.6 >
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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  
... ... @@ -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  )))
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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 +
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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93 93  * Packet engine up to 256 bytes with CRC
94 94  
95 95  
103 +
104 +
96 96  == 1.3 Features ==
97 97  
98 98  * LoRaWAN Class A & Class C protocol (default Class C)
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105 105  * Support Interrupt uplink (Since hardware version v1.2)
106 106  
107 107  
117 +
118 +
108 108  == 1.4 Applications ==
109 109  
110 110  * Smart Buildings & Home Automation
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115 115  * Smart Factory
116 116  
117 117  
129 +
130 +
118 118  == 1.5 Firmware Change log ==
119 119  
120 120  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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183 183  
184 184  [[image:1653268227651-549.png||height="592" width="720"]]
185 185  
199 +
186 186  (((
187 187  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:
188 188  )))
189 189  
190 190  (((
191 -**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.
192 192  )))
193 193  
194 194  (((
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198 198  
199 199  [[image:1652953462722-299.png]]
200 200  
215 +
201 201  (((
202 202  (((
203 203  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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204 204  )))
205 205  
206 206  (((
207 -Add APP EUI in the application.
222 +**Add APP EUI in the application.**
208 208  )))
209 209  )))
210 210  
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220 220  
221 221  [[image:1652953542269-423.png||height="710" width="723"]]
222 222  
223 -Add APP KEY and DEV EUI
224 224  
239 +
240 +**Add APP KEY and DEV EUI**
241 +
225 225  [[image:1652953553383-907.png||height="514" width="724"]]
226 226  
227 227  
228 228  (((
229 -**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.
230 230  )))
231 231  
232 232  [[image:1652953568895-172.png||height="232" width="724"]]
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323 323  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
324 324  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
325 325  |AT+CFGDEV|(% style="width:110px" %)(((
343 +(((
326 326  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
345 +)))
327 327  
347 +(((
328 328  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
349 +)))
329 329  
351 +(((
330 330  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
353 +)))
331 331  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
332 332  
333 333  === 3.3.3 Configure read commands for each sampling ===
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1107 1107  )))
1108 1108  
1109 1109  (% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1110 -|=(% style="width: 161px;" %)(((
1111 -**Command example:**
1112 -)))|=(% style="width: 337px;" %)(((
1133 +|=(% style="width: 100px;" %)(((
1134 +**Command example**
1135 +)))|=(% style="width: 400px;" %)(((
1113 1113  **Function**
1114 1114  )))
1115 -|(% style="width:161px" %)(((
1138 +|(% style="width:100px" %)(((
1116 1116  AT+RXMODE=1,10
1117 -)))|(% style="width:337px" %)(((
1140 +)))|(% style="width:400px" %)(((
1118 1118  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.
1119 1119  )))
1120 -|(% style="width:161px" %)(((
1143 +|(% style="width:100px" %)(((
1121 1121  AT+RXMODE=2,500
1122 -)))|(% style="width:337px" %)(((
1145 +)))|(% style="width:400px" %)(((
1123 1123  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
1124 1124  )))
1125 -|(% style="width:161px" %)(((
1148 +|(% style="width:100px" %)(((
1126 1126  AT+RXMODE=0,0
1127 -)))|(% style="width:337px" %)(((
1150 +)))|(% style="width:400px" %)(((
1128 1128  Disable listening mode. This is the default settings.
1129 1129  )))
1130 -|(% style="width:161px" %)(((
1153 +|(% style="width:100px" %)(((
1131 1131  
1132 -)))|(% style="width:337px" %)(((
1155 +)))|(% style="width:400px" %)(((
1133 1133  A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1134 1134  )))
1135 1135  
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1178 1178  )))
1179 1179  
1180 1180  (((
1204 +(((
1181 1181  (% 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.
1182 1182  )))
1207 +)))
1183 1183  
1184 1184  
1185 1185  == 3.7 Buttons ==
1186 1186  
1187 1187  
1188 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1189 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1190 -|(% 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**
1191 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1192 -|(% style="width:50px" %)**PRO**|(% style="width:350px" %)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"]]
1193 1193  
1194 1194  == 3.8 LEDs ==
1195 1195  
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1250 1250  )))
1251 1251  
1252 1252  
1278 +(((
1253 1253  If device already joined network:
1280 +)))
1254 1254  
1255 1255  (% class="box infomessage" %)
1256 1256  (((
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1289 1289  
1290 1290  (% style="color:red" %)**Note:**
1291 1291  
1319 +(((
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
1324 +)))
1296 1296  
1297 1297  [[image:1654162478620-421.png]]
1298 1298  
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1321 1321  
1322 1322  [[image:1654162535040-878.png]]
1323 1323  
1353 +(((
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]].
1355 +)))
1325 1325  
1357 +(((
1326 1326  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1359 +)))
1327 1327  
1361 +(((
1328 1328  **Step3: **Open flashloader; choose the correct COM port to update.
1363 +)))
1329 1329  
1330 1330  (((
1331 1331  (((
1367 +(((
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  )))
1371 +)))
1335 1335  
1336 1336  
1337 1337  [[image:image-20220602175818-12.png]]

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