Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.32 >
edited by Xiaoling
on 2022/06/06 11:47
To version < 58.16 >
edited by Xiaoling
on 2022/06/06 11:23
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -103,6 +103,7 @@
103 103  * Support Modbus protocol
104 104  * Support Interrupt uplink (Since hardware version v1.2)
105 105  
106 +
106 106  == 1.4 Applications ==
107 107  
108 108  * Smart Buildings & Home Automation
... ... @@ -112,6 +112,7 @@
112 112  * Smart Cities
113 113  * Smart Factory
114 114  
116 +
115 115  == 1.5 Firmware Change log ==
116 116  
117 117  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -305,6 +305,8 @@
305 305  )))
306 306  )))
307 307  
310 +
311 +
308 308  === 3.3.2 Configure sensors ===
309 309  
310 310  (((
... ... @@ -323,6 +323,8 @@
323 323  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
324 324  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
325 325  
330 +
331 +
326 326  === 3.3.3 Configure read commands for each sampling ===
327 327  
328 328  (((
... ... @@ -931,29 +931,16 @@
931 931  
932 932  ==== **Manually trigger an Uplink** ====
933 933  
934 -(((
935 935  Ask device to send an uplink immediately.
936 -)))
937 937  
938 -* (((
939 -**AT Command:**
940 -)))
942 +* **AT Command:**
941 941  
942 -(((
943 943  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
944 -)))
945 945  
946 -(((
947 -
948 -)))
949 949  
950 -* (((
951 -**Downlink Payload:**
952 -)))
947 +* **Downlink Payload:**
953 953  
954 -(((
955 955  **0x08 FF**, RS485-LN will immediately send an uplink.
956 -)))
957 957  
958 958  
959 959  
... ... @@ -991,13 +991,9 @@
991 991  [[image:1654160691922-496.png]]
992 992  
993 993  
994 -* (((
995 -**Downlink Payload:**
996 -)))
987 +* **Downlink Payload:**
997 997  
998 -(((
999 999  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1000 -)))
1001 1001  
1002 1002  
1003 1003  
... ... @@ -1004,197 +1004,103 @@
1004 1004  
1005 1005  ==== **Set Serial Communication Parameters** ====
1006 1006  
1007 -(((
1008 1008  Set the Rs485 serial communication parameters:
1009 -)))
1010 1010  
1011 -* (((
1012 -**AT Command:**
1013 -)))
998 +* **AT Command:**
1014 1014  
1015 -(((
1016 1016  Set Baud Rate:
1017 -)))
1018 1018  
1019 1019  (% class="box infomessage" %)
1020 1020  (((
1021 -(((
1022 1022  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1023 1023  )))
1024 -)))
1025 1025  
1026 -(((
1027 1027  Set UART Parity
1028 -)))
1029 1029  
1030 1030  (% class="box infomessage" %)
1031 1031  (((
1032 -(((
1033 1033  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1034 1034  )))
1035 -)))
1036 1036  
1037 -(((
1038 1038  Set STOPBIT
1039 -)))
1040 1040  
1041 1041  (% class="box infomessage" %)
1042 1042  (((
1043 -(((
1044 1044  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1045 1045  )))
1046 -)))
1047 1047  
1048 -(((
1049 -
1050 -)))
1051 1051  
1052 -* (((
1053 -**Downlink Payload:**
1054 -)))
1022 +* **Downlink Payload:**
1055 1055  
1056 -(((
1057 1057  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1058 -)))
1059 1059  
1060 -(((
1061 1061  **Example:**
1062 -)))
1063 1063  
1064 -* (((
1065 -A7 01 00 60   same as AT+BAUDR=9600
1066 -)))
1067 -* (((
1068 -A7 01 04 80  same as AT+BAUDR=115200
1069 -)))
1028 +* A7 01 00 60   same as AT+BAUDR=9600
1029 +* A7 01 04 80  same as AT+BAUDR=115200
1070 1070  
1071 -(((
1072 1072  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1073 -)))
1074 1074  
1075 -(((
1076 1076  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1077 -)))
1078 1078  
1079 1079  
1080 -
1081 -
1082 1082  == 3.6 Listening mode for RS485 network ==
1083 1083  
1084 -(((
1085 1085  This feature support since firmware v1.4
1086 -)))
1087 1087  
1088 -(((
1089 1089  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 -(((
1095 1095  To enable the listening mode, use can run the command AT+RXMODE.
1096 -)))
1097 1097  
1098 -(((
1099 -
1100 -)))
1101 1101  
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 -)))
1047 +(% border="1" style="background-color:#ffffcc; width:500px" %)
1048 +|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
1049 +|(% 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.
1050 +|(% 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
1051 +|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
1052 +|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1128 1128  
1129 -(((
1130 1130  **Downlink Command:**
1131 -)))
1132 1132  
1133 -(((
1134 1134  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1135 -)))
1136 1136  
1137 -(((
1138 -
1139 -)))
1140 1140  
1141 -(((
1142 1142  **Example**:
1143 -)))
1144 1144  
1145 -(((
1146 1146  The RS485-LN is set to AT+RXMODE=2,1000
1147 -)))
1148 1148  
1149 -(((
1150 1150  There is a two Modbus commands in the RS485 network as below:
1151 -)))
1152 1152  
1153 -(((
1154 1154  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1155 -)))
1156 1156  
1157 -(((
1158 1158  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1159 -)))
1160 1160  
1161 -(((
1162 1162  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 -)))
1164 1164  
1165 -(((
1166 1166  [[image:image-20220602171200-9.png]]
1167 -)))
1168 1168  
1169 -(((
1170 -
1171 -)))
1172 1172  
1173 -(((
1174 1174  (% 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 -)))
1176 1176  
1177 1177  
1178 1178  == 3.7 Buttons ==
1179 1179  
1180 1180  
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"]]
1080 +(% border="1" style="background-color:#f7faff; width:500px" %)
1081 +|=**Button**|=(% style="width: 1420px;" %)**Feature**
1082 +|**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**
1083 +|**RST**|(% style="width:1420px" %)Reboot RS485
1084 +|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1186 1186  
1187 -
1188 -
1189 1189  == 3.8 LEDs ==
1190 1190  
1191 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
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.
1088 +(% border="1" style="background-color:#f7faff; width:500px" %)
1089 +|=**LEDs**|=**Feature**
1090 +|**PWR**|Always on if there is power
1091 +|**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.
1195 1195  
1196 -
1197 -
1198 1198  = 4. Case Study =
1199 1199  
1200 1200  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]]
... ... @@ -1204,26 +1204,19 @@
1204 1204  
1205 1205  == 5.1 Access AT Command ==
1206 1206  
1207 -(((
1208 1208  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 -)))
1210 1210  
1211 1211  [[image:1654162355560-817.png]]
1212 1212  
1213 1213  
1214 -(((
1215 1215  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 -)))
1217 1217  
1218 1218  [[image:1654162368066-342.png]]
1219 1219  
1220 1220  
1221 -(((
1222 1222  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 -)))
1224 1224  
1225 1225  
1226 -
1227 1227  == 5.2 Common AT Command Sequence ==
1228 1228  
1229 1229  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1378,6 +1378,7 @@
1378 1378  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1379 1379  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1380 1380  
1269 +
1381 1381  = 9.Packing Info =
1382 1382  
1383 1383  
... ... @@ -1394,6 +1394,7 @@
1394 1394  * Package Size / pcs : 14.5 x 8 x 5 cm
1395 1395  * Weight / pcs : 170g
1396 1396  
1286 +
1397 1397  = 10. FCC Caution for RS485LN-US915 =
1398 1398  
1399 1399  (((

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0