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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... ... @@ -831,6 +831,7 @@ 831 831 832 832 833 833 834 + 834 834 ==== **RS485 command timeout** ==== 835 835 836 836 ((( ... ... @@ -936,124 +936,248 @@ 936 936 937 937 ==== **Manually trigger an Uplink** ==== 938 938 940 +((( 939 939 Ask device to send an uplink immediately. 942 +))) 940 940 941 -* **AT Command:** 944 +* ((( 945 +**AT Command:** 946 +))) 942 942 948 +((( 943 943 No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same. 950 +))) 944 944 952 +((( 953 + 954 +))) 945 945 946 -* **Downlink Payload:** 956 +* ((( 957 +**Downlink Payload:** 958 +))) 947 947 960 +((( 948 948 **0x08 FF**, RS485-LN will immediately send an uplink. 962 +))) 949 949 950 950 951 951 966 + 952 952 ==== **Clear RS485 Command** ==== 953 953 969 +((( 954 954 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them. 971 +))) 955 955 956 -* **AT Command:** 973 +* ((( 974 +**AT Command:** 975 +))) 957 957 977 +((( 958 958 **AT+CMDEAR=mm,nn** mm: start position of erase ,nn: stop position of erase 979 +))) 959 959 981 +((( 960 960 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10 983 +))) 961 961 985 +((( 962 962 Example screen shot after clear all RS485 commands. 987 +))) 963 963 989 +((( 990 + 991 +))) 964 964 993 +((( 965 965 The uplink screen shot is: 995 +))) 966 966 967 967 [[image:1654160691922-496.png]] 968 968 969 969 970 -* **Downlink Payload:** 1000 +* ((( 1001 +**Downlink Payload:** 1002 +))) 971 971 1004 +((( 972 972 **0x09 aa bb** same as AT+CMDEAR=aa,bb 1006 +))) 973 973 974 974 975 975 1010 + 976 976 ==== **Set Serial Communication Parameters** ==== 977 977 1013 +((( 978 978 Set the Rs485 serial communication parameters: 1015 +))) 979 979 980 -* **AT Command:** 1017 +* ((( 1018 +**AT Command:** 1019 +))) 981 981 1021 +((( 982 982 Set Baud Rate: 1023 +))) 983 983 984 984 (% class="box infomessage" %) 985 985 ((( 1027 +((( 986 986 **AT+BAUDR=9600** ~/~/ Options: (1200,2400,4800,14400,19200,115200) 987 987 ))) 1030 +))) 988 988 1032 +((( 989 989 Set UART Parity 1034 +))) 990 990 991 991 (% class="box infomessage" %) 992 992 ((( 1038 +((( 993 993 **AT+PARITY=0** ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity 994 994 ))) 1041 +))) 995 995 1043 +((( 996 996 Set STOPBIT 1045 +))) 997 997 998 998 (% class="box infomessage" %) 999 999 ((( 1049 +((( 1000 1000 **AT+STOPBIT=0** ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits 1001 1001 ))) 1052 +))) 1002 1002 1054 +((( 1055 + 1056 +))) 1003 1003 1004 -* **Downlink Payload:** 1058 +* ((( 1059 +**Downlink Payload:** 1060 +))) 1005 1005 1062 +((( 1006 1006 **A7 01 aa bb**: Same AT+BAUDR=hex(aa bb)*100 1064 +))) 1007 1007 1066 +((( 1008 1008 **Example:** 1068 +))) 1009 1009 1010 -* A7 01 00 60 same as AT+BAUDR=9600 1011 -* 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 +))) 1012 1012 1077 +((( 1013 1013 A7 02 aa: Same as AT+PARITY=aa (aa value: 00 , 01 or 02) 1079 +))) 1014 1014 1081 +((( 1015 1015 A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02) 1083 +))) 1016 1016 1017 1017 1086 + 1087 + 1018 1018 == 3.6 Listening mode for RS485 network == 1019 1019 1090 +((( 1020 1020 This feature support since firmware v1.4 1092 +))) 1021 1021 1094 +((( 1022 1022 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 +))) 1023 1023 1024 1024 [[image:image-20220602171200-8.png||height="567" width="1007"]] 1025 1025 1100 +((( 1026 1026 To enable the listening mode, use can run the command AT+RXMODE. 1102 +))) 1027 1027 1104 +((( 1105 + 1106 +))) 1028 1028 1029 -(% border="1" style="background-color:#ffffcc; width:500px" %) 1030 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function** 1031 -|(% 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. 1032 -|(% 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 1033 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings. 1034 -|(% 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 +))) 1035 1035 1135 +((( 1036 1036 **Downlink Command:** 1137 +))) 1037 1037 1139 +((( 1038 1038 **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc) 1141 +))) 1039 1039 1143 +((( 1144 + 1145 +))) 1040 1040 1147 +((( 1041 1041 **Example**: 1149 +))) 1042 1042 1151 +((( 1043 1043 The RS485-LN is set to AT+RXMODE=2,1000 1153 +))) 1044 1044 1155 +((( 1045 1045 There is a two Modbus commands in the RS485 network as below: 1157 +))) 1046 1046 1159 +((( 1047 1047 The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b 1161 +))) 1048 1048 1163 +((( 1049 1049 And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33 1165 +))) 1050 1050 1167 +((( 1051 1051 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 +))) 1052 1052 1171 +((( 1053 1053 [[image:image-20220602171200-9.png]] 1173 +))) 1054 1054 1175 +((( 1176 + 1177 +))) 1055 1055 1179 +((( 1056 1056 (% 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 +))) 1057 1057 1058 1058 1059 1059 == 3.7 Buttons == ... ... @@ -1065,6 +1065,8 @@ 1065 1065 |**RST**|(% style="width:1420px" %)Reboot RS485 1066 1066 |**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]] 1067 1067 1193 + 1194 + 1068 1068 == 3.8 LEDs == 1069 1069 1070 1070 (% border="1" style="background-color:#f7faff; width:500px" %)