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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... ... @@ -937,16 +937,29 @@ 937 937 938 938 ==== **Manually trigger an Uplink** ==== 939 939 940 +((( 940 940 Ask device to send an uplink immediately. 942 +))) 941 941 942 -* **AT Command:** 944 +* ((( 945 +**AT Command:** 946 +))) 943 943 948 +((( 944 944 No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same. 950 +))) 945 945 952 +((( 953 + 954 +))) 946 946 947 -* **Downlink Payload:** 956 +* ((( 957 +**Downlink Payload:** 958 +))) 948 948 960 +((( 949 949 **0x08 FF**, RS485-LN will immediately send an uplink. 962 +))) 950 950 951 951 952 952 ... ... @@ -953,25 +953,44 @@ 953 953 954 954 ==== **Clear RS485 Command** ==== 955 955 969 +((( 956 956 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them. 971 +))) 957 957 958 -* **AT Command:** 973 +* ((( 974 +**AT Command:** 975 +))) 959 959 977 +((( 960 960 **AT+CMDEAR=mm,nn** mm: start position of erase ,nn: stop position of erase 979 +))) 961 961 981 +((( 962 962 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10 983 +))) 963 963 985 +((( 964 964 Example screen shot after clear all RS485 commands. 987 +))) 965 965 989 +((( 990 + 991 +))) 966 966 993 +((( 967 967 The uplink screen shot is: 995 +))) 968 968 969 969 [[image:1654160691922-496.png]] 970 970 971 971 972 -* **Downlink Payload:** 1000 +* ((( 1001 +**Downlink Payload:** 1002 +))) 973 973 1004 +((( 974 974 **0x09 aa bb** same as AT+CMDEAR=aa,bb 1006 +))) 975 975 976 976 977 977 ... ... @@ -978,85 +978,175 @@ 978 978 979 979 ==== **Set Serial Communication Parameters** ==== 980 980 1013 +((( 981 981 Set the Rs485 serial communication parameters: 1015 +))) 982 982 983 -* **AT Command:** 1017 +* ((( 1018 +**AT Command:** 1019 +))) 984 984 1021 +((( 985 985 Set Baud Rate: 1023 +))) 986 986 987 987 (% class="box infomessage" %) 988 988 ((( 1027 +((( 989 989 **AT+BAUDR=9600** ~/~/ Options: (1200,2400,4800,14400,19200,115200) 990 990 ))) 1030 +))) 991 991 1032 +((( 992 992 Set UART Parity 1034 +))) 993 993 994 994 (% class="box infomessage" %) 995 995 ((( 1038 +((( 996 996 **AT+PARITY=0** ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity 997 997 ))) 1041 +))) 998 998 1043 +((( 999 999 Set STOPBIT 1045 +))) 1000 1000 1001 1001 (% class="box infomessage" %) 1002 1002 ((( 1049 +((( 1003 1003 **AT+STOPBIT=0** ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits 1004 1004 ))) 1052 +))) 1005 1005 1054 +((( 1055 + 1056 +))) 1006 1006 1007 -* **Downlink Payload:** 1058 +* ((( 1059 +**Downlink Payload:** 1060 +))) 1008 1008 1062 +((( 1009 1009 **A7 01 aa bb**: Same AT+BAUDR=hex(aa bb)*100 1064 +))) 1010 1010 1066 +((( 1011 1011 **Example:** 1068 +))) 1012 1012 1013 -* A7 01 00 60 same as AT+BAUDR=9600 1014 -* 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 +))) 1015 1015 1077 +((( 1016 1016 A7 02 aa: Same as AT+PARITY=aa (aa value: 00 , 01 or 02) 1079 +))) 1017 1017 1081 +((( 1018 1018 A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02) 1083 +))) 1019 1019 1020 1020 1086 + 1087 + 1021 1021 == 3.6 Listening mode for RS485 network == 1022 1022 1090 +((( 1023 1023 This feature support since firmware v1.4 1092 +))) 1024 1024 1094 +((( 1025 1025 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 +))) 1026 1026 1027 1027 [[image:image-20220602171200-8.png||height="567" width="1007"]] 1028 1028 1100 +((( 1029 1029 To enable the listening mode, use can run the command AT+RXMODE. 1102 +))) 1030 1030 1104 +((( 1105 + 1106 +))) 1031 1031 1032 -(% border="1" style="background-color:#ffffcc; width:500px" %) 1033 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function** 1034 -|(% 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. 1035 -|(% 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 1036 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings. 1037 -|(% 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 +))) 1038 1038 1135 +((( 1039 1039 **Downlink Command:** 1137 +))) 1040 1040 1139 +((( 1041 1041 **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc) 1141 +))) 1042 1042 1143 +((( 1144 + 1145 +))) 1043 1043 1147 +((( 1044 1044 **Example**: 1149 +))) 1045 1045 1151 +((( 1046 1046 The RS485-LN is set to AT+RXMODE=2,1000 1153 +))) 1047 1047 1155 +((( 1048 1048 There is a two Modbus commands in the RS485 network as below: 1157 +))) 1049 1049 1159 +((( 1050 1050 The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b 1161 +))) 1051 1051 1163 +((( 1052 1052 And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33 1165 +))) 1053 1053 1167 +((( 1054 1054 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 +))) 1055 1055 1171 +((( 1056 1056 [[image:image-20220602171200-9.png]] 1173 +))) 1057 1057 1175 +((( 1176 + 1177 +))) 1058 1058 1179 +((( 1059 1059 (% 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 +))) 1060 1060 1061 1061 1062 1062 == 3.7 Buttons == ... ... @@ -1068,6 +1068,8 @@ 1068 1068 |**RST**|(% style="width:1420px" %)Reboot RS485 1069 1069 |**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]] 1070 1070 1193 + 1194 + 1071 1071 == 3.8 LEDs == 1072 1072 1073 1073 (% border="1" style="background-color:#f7faff; width:500px" %) ... ... @@ -1075,6 +1075,8 @@ 1075 1075 |**PWR**|Always on if there is power 1076 1076 |**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. 1077 1077 1202 + 1203 + 1078 1078 = 4. Case Study = 1079 1079 1080 1080 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]]