Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.18 >
edited by Xiaoling
on 2022/06/06 11:23
To version < 58.29 >
edited by Xiaoling
on 2022/06/06 11:42
>
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -103,7 +103,6 @@
103 103  * Support Modbus protocol
104 104  * Support Interrupt uplink (Since hardware version v1.2)
105 105  
106 -
107 107  == 1.4 Applications ==
108 108  
109 109  * Smart Buildings & Home Automation
... ... @@ -113,7 +113,6 @@
113 113  * Smart Cities
114 114  * Smart Factory
115 115  
116 -
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/]]
... ... @@ -307,8 +307,6 @@
307 307  )))
308 308  )))
309 309  
310 -
311 -
312 312  === 3.3.2 Configure sensors ===
313 313  
314 314  (((
... ... @@ -327,8 +327,6 @@
327 327  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
328 328  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
329 329  
330 -
331 -
332 332  === 3.3.3 Configure read commands for each sampling ===
333 333  
334 334  (((
... ... @@ -1083,63 +1083,124 @@
1083 1083  )))
1084 1084  
1085 1085  
1080 +
1081 +
1086 1086  == 3.6 Listening mode for RS485 network ==
1087 1087  
1084 +(((
1088 1088  This feature support since firmware v1.4
1086 +)))
1089 1089  
1088 +(((
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.
1090 +)))
1091 1091  
1092 1092  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1093 1093  
1094 +(((
1094 1094  To enable the listening mode, use can run the command AT+RXMODE.
1096 +)))
1095 1095  
1098 +(((
1099 +
1100 +)))
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)
1102 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1103 +|=(% style="width: 161px;" %)(((
1104 +**Command example:**
1105 +)))|=(% style="width: 337px;" %)(((
1106 +**Function**
1107 +)))
1108 +|(% style="width:161px" %)(((
1109 +AT+RXMODE=1,10
1110 +)))|(% style="width:337px" %)(((
1111 +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.
1112 +)))
1113 +|(% style="width:161px" %)(((
1114 +AT+RXMODE=2,500
1115 +)))|(% style="width:337px" %)(((
1116 +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
1117 +)))
1118 +|(% style="width:161px" %)(((
1119 +AT+RXMODE=0,0
1120 +)))|(% style="width:337px" %)(((
1121 +Disable listening mode. This is the default settings.
1122 +)))
1123 +|(% style="width:161px" %)(((
1124 +
1125 +)))|(% style="width:337px" %)(((
1126 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1127 +)))
1103 1103  
1129 +(((
1104 1104  **Downlink Command:**
1131 +)))
1105 1105  
1133 +(((
1106 1106  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1135 +)))
1107 1107  
1137 +(((
1138 +
1139 +)))
1108 1108  
1141 +(((
1109 1109  **Example**:
1143 +)))
1110 1110  
1145 +(((
1111 1111  The RS485-LN is set to AT+RXMODE=2,1000
1147 +)))
1112 1112  
1149 +(((
1113 1113  There is a two Modbus commands in the RS485 network as below:
1151 +)))
1114 1114  
1153 +(((
1115 1115  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1155 +)))
1116 1116  
1157 +(((
1117 1117  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1159 +)))
1118 1118  
1161 +(((
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
1163 +)))
1120 1120  
1165 +(((
1121 1121  [[image:image-20220602171200-9.png]]
1167 +)))
1122 1122  
1169 +(((
1170 +
1171 +)))
1123 1123  
1173 +(((
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.
1175 +)))
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"]]
1181 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1182 +|=(% style="width: 30px;" %)**Button**|=(% style="width: 355px;" %)**Feature**
1183 +|=(% style="width: 30px;" %)**ACT**|(% style="width:355px" %)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**
1184 +|=(% style="width: 30px;" %)**RST**|(% style="width:355px" %)Reboot RS485
1185 +|=(% style="width: 30px;" %)**PRO**|(% style="width:355px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1135 1135  
1187 +
1188 +
1136 1136  == 3.8 LEDs ==
1137 1137  
1138 -(% border="1" style="background-color:#f7faff; width:500px" %)
1139 -|=**LEDs**|=**Feature**
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.
1191 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:500px" %)
1192 +|=(% style="width: 30px;" %)**LEDs**|=(% style="width: 400px;" %)**Feature**
1193 +|(% style="width:30px" %)**PWR**|=(% style="width: 400px;" %)Always on if there is power
1194 +|(% style="width:30px" %)**SYS**|=(% style="width: 400px;" %)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  
1196 +
1197 +
1143 1143  = 4. Case Study =
1144 1144  
1145 1145  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]]
... ... @@ -1149,19 +1149,26 @@
1149 1149  
1150 1150  == 5.1 Access AT Command ==
1151 1151  
1207 +(((
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.
1209 +)))
1153 1153  
1154 1154  [[image:1654162355560-817.png]]
1155 1155  
1156 1156  
1214 +(((
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:
1216 +)))
1158 1158  
1159 1159  [[image:1654162368066-342.png]]
1160 1160  
1161 1161  
1221 +(((
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/]]
1223 +)))
1163 1163  
1164 1164  
1226 +
1165 1165  == 5.2 Common AT Command Sequence ==
1166 1166  
1167 1167  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -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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