Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.20 >
edited by Xiaoling
on 2022/06/06 11:24
To version < 58.33 >
edited by Xiaoling
on 2022/06/06 11:47
>
Change comment: There is no comment for this version

Summary

Details

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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  (((
... ... @@ -1097,55 +1097,108 @@
1097 1097  
1098 1098  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1099 1099  
1094 +(((
1100 1100  To enable the listening mode, use can run the command AT+RXMODE.
1096 +)))
1101 1101  
1098 +(((
1099 +
1100 +)))
1102 1102  
1103 -(% border="1" style="background-color:#ffffcc; width:500px" %)
1104 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
1105 -|(% 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.
1106 -|(% 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
1107 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
1108 -|(% 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 +)))
1109 1109  
1129 +(((
1110 1110  **Downlink Command:**
1131 +)))
1111 1111  
1133 +(((
1112 1112  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1135 +)))
1113 1113  
1137 +(((
1138 +
1139 +)))
1114 1114  
1141 +(((
1115 1115  **Example**:
1143 +)))
1116 1116  
1145 +(((
1117 1117  The RS485-LN is set to AT+RXMODE=2,1000
1147 +)))
1118 1118  
1149 +(((
1119 1119  There is a two Modbus commands in the RS485 network as below:
1151 +)))
1120 1120  
1153 +(((
1121 1121  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1155 +)))
1122 1122  
1157 +(((
1123 1123  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1159 +)))
1124 1124  
1161 +(((
1125 1125  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 +)))
1126 1126  
1165 +(((
1127 1127  [[image:image-20220602171200-9.png]]
1167 +)))
1128 1128  
1169 +(((
1170 +
1171 +)))
1129 1129  
1173 +(((
1130 1130  (% 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 +)))
1131 1131  
1132 1132  
1133 1133  == 3.7 Buttons ==
1134 1134  
1135 1135  
1136 -(% border="1" style="background-color:#f7faff; width:500px" %)
1137 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1138 -|**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**
1139 -|**RST**|(% style="width:1420px" %)Reboot RS485
1140 -|**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"]]
1141 1141  
1187 +
1142 1142  == 3.8 LEDs ==
1143 1143  
1144 -(% border="1" style="background-color:#f7faff; width:500px" %)
1145 -|=**LEDs**|=**Feature**
1146 -|**PWR**|Always on if there is power
1147 -|**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.
1190 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1191 +|=(% style="width: 30px;" %)**LEDs**|=(% style="width: 400px;" %)**Feature**
1192 +|(% style="width:30px" %)**PWR**|=(% style="width: 400px;" %)Always on if there is power
1193 +|(% 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.
1148 1148  
1195 +
1149 1149  = 4. Case Study =
1150 1150  
1151 1151  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]]
... ... @@ -1155,19 +1155,26 @@
1155 1155  
1156 1156  == 5.1 Access AT Command ==
1157 1157  
1205 +(((
1158 1158  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.
1207 +)))
1159 1159  
1160 1160  [[image:1654162355560-817.png]]
1161 1161  
1162 1162  
1212 +(((
1163 1163  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:
1214 +)))
1164 1164  
1165 1165  [[image:1654162368066-342.png]]
1166 1166  
1167 1167  
1219 +(((
1168 1168  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/]]
1221 +)))
1169 1169  
1170 1170  
1224 +
1171 1171  == 5.2 Common AT Command Sequence ==
1172 1172  
1173 1173  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1322,7 +1322,6 @@
1322 1322  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1323 1323  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1324 1324  
1325 -
1326 1326  = 9.Packing Info =
1327 1327  
1328 1328  
... ... @@ -1339,7 +1339,6 @@
1339 1339  * Package Size / pcs : 14.5 x 8 x 5 cm
1340 1340  * Weight / pcs : 170g
1341 1341  
1342 -
1343 1343  = 10. FCC Caution for RS485LN-US915 =
1344 1344  
1345 1345  (((

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