Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual
Last modified by Bei Jinggeng on 2025/01/16 11:36
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... ... @@ -997,9 +997,13 @@ 997 997 [[image:1654160691922-496.png]] 998 998 999 999 1000 -* **Downlink Payload:** 1000 +* ((( 1001 +**Downlink Payload:** 1002 +))) 1001 1001 1004 +((( 1002 1002 **0x09 aa bb** same as AT+CMDEAR=aa,bb 1006 +))) 1003 1003 1004 1004 1005 1005 ... ... @@ -1006,85 +1006,175 @@ 1006 1006 1007 1007 ==== **Set Serial Communication Parameters** ==== 1008 1008 1013 +((( 1009 1009 Set the Rs485 serial communication parameters: 1015 +))) 1010 1010 1011 -* **AT Command:** 1017 +* ((( 1018 +**AT Command:** 1019 +))) 1012 1012 1021 +((( 1013 1013 Set Baud Rate: 1023 +))) 1014 1014 1015 1015 (% class="box infomessage" %) 1016 1016 ((( 1027 +((( 1017 1017 **AT+BAUDR=9600** ~/~/ Options: (1200,2400,4800,14400,19200,115200) 1018 1018 ))) 1030 +))) 1019 1019 1032 +((( 1020 1020 Set UART Parity 1034 +))) 1021 1021 1022 1022 (% class="box infomessage" %) 1023 1023 ((( 1038 +((( 1024 1024 **AT+PARITY=0** ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity 1025 1025 ))) 1041 +))) 1026 1026 1043 +((( 1027 1027 Set STOPBIT 1045 +))) 1028 1028 1029 1029 (% class="box infomessage" %) 1030 1030 ((( 1049 +((( 1031 1031 **AT+STOPBIT=0** ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits 1032 1032 ))) 1052 +))) 1033 1033 1054 +((( 1055 + 1056 +))) 1034 1034 1035 -* **Downlink Payload:** 1058 +* ((( 1059 +**Downlink Payload:** 1060 +))) 1036 1036 1062 +((( 1037 1037 **A7 01 aa bb**: Same AT+BAUDR=hex(aa bb)*100 1064 +))) 1038 1038 1066 +((( 1039 1039 **Example:** 1068 +))) 1040 1040 1041 -* A7 01 00 60 same as AT+BAUDR=9600 1042 -* A7 01 04 80 same as AT+BAUDR=115200 1070 +* ((( 1071 +A7 01 00 60 same as AT+BAUDR=9600 1072 +))) 1073 +* ((( 1074 +A7 01 04 80 same as AT+BAUDR=115200 1075 +))) 1043 1043 1077 +((( 1044 1044 A7 02 aa: Same as AT+PARITY=aa (aa value: 00 , 01 or 02) 1079 +))) 1045 1045 1081 +((( 1046 1046 A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02) 1083 +))) 1047 1047 1048 1048 1086 + 1087 + 1049 1049 == 3.6 Listening mode for RS485 network == 1050 1050 1090 +((( 1051 1051 This feature support since firmware v1.4 1092 +))) 1052 1052 1094 +((( 1053 1053 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. 1096 +))) 1054 1054 1055 1055 [[image:image-20220602171200-8.png||height="567" width="1007"]] 1056 1056 1100 +((( 1057 1057 To enable the listening mode, use can run the command AT+RXMODE. 1102 +))) 1058 1058 1104 +((( 1105 + 1106 +))) 1059 1059 1060 -(% border="1" style="background-color:#ffffcc; width:500px" %) 1061 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function** 1062 -|(% 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. 1063 -|(% 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 1064 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings. 1065 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 ~| cc) 1108 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %) 1109 +|=(% style="width: 161px;" %)((( 1110 +**Command example:** 1111 +)))|=(% style="width: 337px;" %)((( 1112 +**Function** 1113 +))) 1114 +|(% style="width:161px" %)((( 1115 +AT+RXMODE=1,10 1116 +)))|(% style="width:337px" %)((( 1117 +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. 1118 +))) 1119 +|(% style="width:161px" %)((( 1120 +AT+RXMODE=2,500 1121 +)))|(% style="width:337px" %)((( 1122 +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 1123 +))) 1124 +|(% style="width:161px" %)((( 1125 +AT+RXMODE=0,0 1126 +)))|(% style="width:337px" %)((( 1127 +Disable listening mode. This is the default settings. 1128 +))) 1129 +|(% style="width:161px" %)((( 1130 + 1131 +)))|(% style="width:337px" %)((( 1132 +A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 | cc) 1133 +))) 1066 1066 1135 +((( 1067 1067 **Downlink Command:** 1137 +))) 1068 1068 1139 +((( 1069 1069 **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc) 1141 +))) 1070 1070 1143 +((( 1144 + 1145 +))) 1071 1071 1147 +((( 1072 1072 **Example**: 1149 +))) 1073 1073 1151 +((( 1074 1074 The RS485-LN is set to AT+RXMODE=2,1000 1153 +))) 1075 1075 1155 +((( 1076 1076 There is a two Modbus commands in the RS485 network as below: 1157 +))) 1077 1077 1159 +((( 1078 1078 The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b 1161 +))) 1079 1079 1163 +((( 1080 1080 And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33 1165 +))) 1081 1081 1167 +((( 1082 1082 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 1169 +))) 1083 1083 1171 +((( 1084 1084 [[image:image-20220602171200-9.png]] 1173 +))) 1085 1085 1175 +((( 1176 + 1177 +))) 1086 1086 1179 +((( 1087 1087 (% 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. 1181 +))) 1088 1088 1089 1089 1090 1090 == 3.7 Buttons == ... ... @@ -1096,6 +1096,8 @@ 1096 1096 |**RST**|(% style="width:1420px" %)Reboot RS485 1097 1097 |**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]] 1098 1098 1193 + 1194 + 1099 1099 == 3.8 LEDs == 1100 1100 1101 1101 (% border="1" style="background-color:#f7faff; width:500px" %) ... ... @@ -1103,6 +1103,8 @@ 1103 1103 |**PWR**|Always on if there is power 1104 1104 |**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. 1105 1105 1202 + 1203 + 1106 1106 = 4. Case Study = 1107 1107 1108 1108 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]]