Last modified by Bei Jinggeng on 2025/01/16 11:36
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From version < 58.18 >
edited by Xiaoling
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To version < 60.8 >
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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  )))
... ... @@ -48,6 +48,8 @@
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  )))
... ... @@ -66,11 +66,13 @@
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)
... ... @@ -104,6 +104,7 @@
104 104  * Support Interrupt uplink (Since hardware version v1.2)
105 105  
106 106  
114 +
107 107  == 1.4 Applications ==
108 108  
109 109  * Smart Buildings & Home Automation
... ... @@ -114,6 +114,7 @@
114 114  * Smart Factory
115 115  
116 116  
125 +
117 117  == 1.5 Firmware Change log ==
118 118  
119 119  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -182,12 +182,13 @@
182 182  
183 183  [[image:1653268227651-549.png||height="592" width="720"]]
184 184  
194 +
185 185  (((
186 186  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:
187 187  )))
188 188  
189 189  (((
190 -**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.
191 191  )))
192 192  
193 193  (((
... ... @@ -197,6 +197,7 @@
197 197  
198 198  [[image:1652953462722-299.png]]
199 199  
210 +
200 200  (((
201 201  (((
202 202  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
... ... @@ -203,7 +203,7 @@
203 203  )))
204 204  
205 205  (((
206 -Add APP EUI in the application.
217 +**Add APP EUI in the application.**
207 207  )))
208 208  )))
209 209  
... ... @@ -219,13 +219,15 @@
219 219  
220 220  [[image:1652953542269-423.png||height="710" width="723"]]
221 221  
222 -Add APP KEY and DEV EUI
223 223  
234 +
235 +**Add APP KEY and DEV EUI**
236 +
224 224  [[image:1652953553383-907.png||height="514" width="724"]]
225 225  
226 226  
227 227  (((
228 -**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.
229 229  )))
230 230  
231 231  [[image:1652953568895-172.png||height="232" width="724"]]
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235 235  
236 236  (((
237 237  (((
251 +(((
238 238  There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
239 239  )))
254 +)))
240 240  
241 241  (((
257 +(((
242 242  (% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
259 +)))
243 243  
244 244  
245 245  )))
... ... @@ -309,6 +309,7 @@
309 309  
310 310  
311 311  
329 +
312 312  === 3.3.2 Configure sensors ===
313 313  
314 314  (((
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320 320  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
321 321  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
322 322  |AT+CFGDEV|(% style="width:110px" %)(((
341 +(((
323 323  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
343 +)))
324 324  
345 +(((
325 325  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
347 +)))
326 326  
349 +(((
327 327  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
351 +)))
328 328  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
329 329  
330 330  
331 331  
356 +
332 332  === 3.3.3 Configure read commands for each sampling ===
333 333  
334 334  (((
... ... @@ -1083,62 +1083,122 @@
1083 1083  )))
1084 1084  
1085 1085  
1111 +
1112 +
1086 1086  == 3.6 Listening mode for RS485 network ==
1087 1087  
1115 +(((
1088 1088  This feature support since firmware v1.4
1117 +)))
1089 1089  
1119 +(((
1090 1090  RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
1121 +)))
1091 1091  
1092 1092  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1093 1093  
1125 +(((
1094 1094  To enable the listening mode, use can run the command AT+RXMODE.
1127 +)))
1095 1095  
1129 +(((
1130 +
1131 +)))
1096 1096  
1097 -(% border="1" style="background-color:#ffffcc; width:500px" %)
1098 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
1099 -|(% style="width:161px" %)AT+RXMODE=1,10 |(% style="width:337px" %)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.
1100 -|(% style="width:161px" %)AT+RXMODE=2,500|(% style="width:337px" %)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
1101 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
1102 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1133 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1134 +|=(% style="width: 100px;" %)(((
1135 +**Command example**
1136 +)))|=(% style="width: 400px;" %)(((
1137 +**Function**
1138 +)))
1139 +|(% style="width:100px" %)(((
1140 +AT+RXMODE=1,10
1141 +)))|(% style="width:400px" %)(((
1142 +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.
1143 +)))
1144 +|(% style="width:100px" %)(((
1145 +AT+RXMODE=2,500
1146 +)))|(% style="width:400px" %)(((
1147 +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
1148 +)))
1149 +|(% style="width:100px" %)(((
1150 +AT+RXMODE=0,0
1151 +)))|(% style="width:400px" %)(((
1152 +Disable listening mode. This is the default settings.
1153 +)))
1154 +|(% style="width:100px" %)(((
1155 +
1156 +)))|(% style="width:400px" %)(((
1157 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1158 +)))
1103 1103  
1160 +(((
1104 1104  **Downlink Command:**
1162 +)))
1105 1105  
1164 +(((
1106 1106  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1166 +)))
1107 1107  
1168 +(((
1169 +
1170 +)))
1108 1108  
1172 +(((
1109 1109  **Example**:
1174 +)))
1110 1110  
1176 +(((
1111 1111  The RS485-LN is set to AT+RXMODE=2,1000
1178 +)))
1112 1112  
1180 +(((
1113 1113  There is a two Modbus commands in the RS485 network as below:
1182 +)))
1114 1114  
1184 +(((
1115 1115  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1186 +)))
1116 1116  
1188 +(((
1117 1117  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1190 +)))
1118 1118  
1192 +(((
1119 1119  RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b  (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1194 +)))
1120 1120  
1196 +(((
1121 1121  [[image:image-20220602171200-9.png]]
1198 +)))
1122 1122  
1200 +(((
1201 +
1202 +)))
1123 1123  
1204 +(((
1205 +(((
1124 1124  (% 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.
1207 +)))
1208 +)))
1125 1125  
1126 1126  
1127 1127  == 3.7 Buttons ==
1128 1128  
1129 1129  
1130 -(% border="1" style="background-color:#f7faff; width:500px" %)
1131 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1132 -|**ACT**|(% style="width:1420px" %)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**
1133 -|**RST**|(% style="width:1420px" %)Reboot RS485
1134 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1214 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1215 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1216 +|(% 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**
1217 +|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1218 +|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1135 1135  
1136 1136  == 3.8 LEDs ==
1137 1137  
1138 -(% border="1" style="background-color:#f7faff; width:500px" %)
1139 -|=**LEDs**|=**Feature**
1222 +
1223 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1224 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1140 1140  |**PWR**|Always on if there is power
1141 -|**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 +|**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.
1142 1142  
1143 1143  = 4. Case Study =
1144 1144  
... ... @@ -1149,19 +1149,26 @@
1149 1149  
1150 1150  == 5.1 Access AT Command ==
1151 1151  
1237 +(((
1152 1152  RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
1239 +)))
1153 1153  
1154 1154  [[image:1654162355560-817.png]]
1155 1155  
1156 1156  
1244 +(((
1157 1157  In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
1246 +)))
1158 1158  
1159 1159  [[image:1654162368066-342.png]]
1160 1160  
1161 1161  
1251 +(((
1162 1162  More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1253 +)))
1163 1163  
1164 1164  
1256 +
1165 1165  == 5.2 Common AT Command Sequence ==
1166 1166  
1167 1167  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1184,7 +1184,9 @@
1184 1184  )))
1185 1185  
1186 1186  
1279 +(((
1187 1187  If device already joined network:
1281 +)))
1188 1188  
1189 1189  (% class="box infomessage" %)
1190 1190  (((
... ... @@ -1223,10 +1223,12 @@
1223 1223  
1224 1224  (% style="color:red" %)**Note:**
1225 1225  
1320 +(((
1226 1226  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1227 1227  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1228 1228  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.
1229 1229  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
1325 +)))
1230 1230  
1231 1231  [[image:1654162478620-421.png]]
1232 1232  
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1235 1235  
1236 1236  == 6.1 How to upgrade the image? ==
1237 1237  
1334 +(((
1238 1238  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1336 +)))
1239 1239  
1240 -* Support new features
1241 -* For bug fix
1242 -* Change LoRaWAN bands.
1338 +* (((
1339 +Support new features
1340 +)))
1341 +* (((
1342 +For bug fix
1343 +)))
1344 +* (((
1345 +Change LoRaWAN bands.
1346 +)))
1243 1243  
1348 +(((
1244 1244  Below shows the hardware connection for how to upload an image to RS485-LN:
1350 +)))
1245 1245  
1246 1246  [[image:1654162535040-878.png]]
1247 1247  
1354 +(((
1248 1248  **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]].
1356 +)))
1249 1249  
1358 +(((
1250 1250  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1360 +)))
1251 1251  
1362 +(((
1252 1252  **Step3: **Open flashloader; choose the correct COM port to update.
1364 +)))
1253 1253  
1254 1254  (((
1367 +(((
1368 +(((
1255 1255  (% 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.
1256 1256  )))
1371 +)))
1372 +)))
1257 1257  
1258 1258  
1259 1259  [[image:image-20220602175818-12.png]]
... ... @@ -1316,7 +1316,6 @@
1316 1316  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1317 1317  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1318 1318  
1319 -
1320 1320  = 9.Packing Info =
1321 1321  
1322 1322  
... ... @@ -1333,7 +1333,6 @@
1333 1333  * Package Size / pcs : 14.5 x 8 x 5 cm
1334 1334  * Weight / pcs : 170g
1335 1335  
1336 -
1337 1337  = 10. FCC Caution for RS485LN-US915 =
1338 1338  
1339 1339  (((

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