Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.15 >
edited by Xiaoling
on 2022/06/06 11:23
To version < 58.32 >
edited by Xiaoling
on 2022/06/06 11:47
>
Change comment: There is no comment for this version

Summary

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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  (((
... ... @@ -937,16 +937,29 @@
937 937  
938 938  ==== **Manually trigger an Uplink** ====
939 939  
934 +(((
940 940  Ask device to send an uplink immediately.
936 +)))
941 941  
942 -* **AT Command:**
938 +* (((
939 +**AT Command:**
940 +)))
943 943  
942 +(((
944 944  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 +)))
946 946  
947 -* **Downlink Payload:**
950 +* (((
951 +**Downlink Payload:**
952 +)))
948 948  
954 +(((
949 949  **0x08 FF**, RS485-LN will immediately send an uplink.
956 +)))
950 950  
951 951  
952 952  
... ... @@ -953,25 +953,44 @@
953 953  
954 954  ==== **Clear RS485 Command** ====
955 955  
963 +(((
956 956  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
965 +)))
957 957  
958 -* **AT Command:**
967 +* (((
968 +**AT Command:**
969 +)))
959 959  
971 +(((
960 960  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
973 +)))
961 961  
975 +(((
962 962  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
977 +)))
963 963  
979 +(((
964 964  Example screen shot after clear all RS485 commands. 
981 +)))
965 965  
983 +(((
984 +
985 +)))
966 966  
987 +(((
967 967  The uplink screen shot is:
989 +)))
968 968  
969 969  [[image:1654160691922-496.png]]
970 970  
971 971  
972 -* **Downlink Payload:**
994 +* (((
995 +**Downlink Payload:**
996 +)))
973 973  
998 +(((
974 974  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1000 +)))
975 975  
976 976  
977 977  
... ... @@ -978,103 +978,197 @@
978 978  
979 979  ==== **Set Serial Communication Parameters** ====
980 980  
1007 +(((
981 981  Set the Rs485 serial communication parameters:
1009 +)))
982 982  
983 -* **AT Command:**
1011 +* (((
1012 +**AT Command:**
1013 +)))
984 984  
1015 +(((
985 985  Set Baud Rate:
1017 +)))
986 986  
987 987  (% class="box infomessage" %)
988 988  (((
1021 +(((
989 989  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
990 990  )))
1024 +)))
991 991  
1026 +(((
992 992  Set UART Parity
1028 +)))
993 993  
994 994  (% class="box infomessage" %)
995 995  (((
1032 +(((
996 996  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
997 997  )))
1035 +)))
998 998  
1037 +(((
999 999  Set STOPBIT
1039 +)))
1000 1000  
1001 1001  (% class="box infomessage" %)
1002 1002  (((
1043 +(((
1003 1003  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1004 1004  )))
1046 +)))
1005 1005  
1048 +(((
1049 +
1050 +)))
1006 1006  
1007 -* **Downlink Payload:**
1052 +* (((
1053 +**Downlink Payload:**
1054 +)))
1008 1008  
1056 +(((
1009 1009  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1058 +)))
1010 1010  
1060 +(((
1011 1011  **Example:**
1062 +)))
1012 1012  
1013 -* A7 01 00 60   same as AT+BAUDR=9600
1014 -* A7 01 04 80  same as AT+BAUDR=115200
1064 +* (((
1065 +A7 01 00 60   same as AT+BAUDR=9600
1066 +)))
1067 +* (((
1068 +A7 01 04 80  same as AT+BAUDR=115200
1069 +)))
1015 1015  
1071 +(((
1016 1016  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1073 +)))
1017 1017  
1075 +(((
1018 1018  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1077 +)))
1019 1019  
1020 1020  
1080 +
1081 +
1021 1021  == 3.6 Listening mode for RS485 network ==
1022 1022  
1084 +(((
1023 1023  This feature support since firmware v1.4
1086 +)))
1024 1024  
1088 +(((
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.
1090 +)))
1026 1026  
1027 1027  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1028 1028  
1094 +(((
1029 1029  To enable the listening mode, use can run the command AT+RXMODE.
1096 +)))
1030 1030  
1098 +(((
1099 +
1100 +)))
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)
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 +)))
1038 1038  
1129 +(((
1039 1039  **Downlink Command:**
1131 +)))
1040 1040  
1133 +(((
1041 1041  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1135 +)))
1042 1042  
1137 +(((
1138 +
1139 +)))
1043 1043  
1141 +(((
1044 1044  **Example**:
1143 +)))
1045 1045  
1145 +(((
1046 1046  The RS485-LN is set to AT+RXMODE=2,1000
1147 +)))
1047 1047  
1149 +(((
1048 1048  There is a two Modbus commands in the RS485 network as below:
1151 +)))
1049 1049  
1153 +(((
1050 1050  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1155 +)))
1051 1051  
1157 +(((
1052 1052  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1159 +)))
1053 1053  
1161 +(((
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
1163 +)))
1055 1055  
1165 +(((
1056 1056  [[image:image-20220602171200-9.png]]
1167 +)))
1057 1057  
1169 +(((
1170 +
1171 +)))
1058 1058  
1173 +(((
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.
1175 +)))
1060 1060  
1061 1061  
1062 1062  == 3.7 Buttons ==
1063 1063  
1064 1064  
1065 -(% border="1" style="background-color:#f7faff; width:500px" %)
1066 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1067 -|**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**
1068 -|**RST**|(% style="width:1420px" %)Reboot RS485
1069 -|**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"]]
1070 1070  
1187 +
1188 +
1071 1071  == 3.8 LEDs ==
1072 1072  
1073 -(% border="1" style="background-color:#f7faff; width:500px" %)
1074 -|=**LEDs**|=**Feature**
1075 -|**PWR**|Always on if there is power
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.
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.
1077 1077  
1196 +
1197 +
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]]
... ... @@ -1084,19 +1084,26 @@
1084 1084  
1085 1085  == 5.1 Access AT Command ==
1086 1086  
1207 +(((
1087 1087  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 +)))
1088 1088  
1089 1089  [[image:1654162355560-817.png]]
1090 1090  
1091 1091  
1214 +(((
1092 1092  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 +)))
1093 1093  
1094 1094  [[image:1654162368066-342.png]]
1095 1095  
1096 1096  
1221 +(((
1097 1097  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 +)))
1098 1098  
1099 1099  
1226 +
1100 1100  == 5.2 Common AT Command Sequence ==
1101 1101  
1102 1102  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1251,7 +1251,6 @@
1251 1251  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1252 1252  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1253 1253  
1254 -
1255 1255  = 9.Packing Info =
1256 1256  
1257 1257  
... ... @@ -1268,7 +1268,6 @@
1268 1268  * Package Size / pcs : 14.5 x 8 x 5 cm
1269 1269  * Weight / pcs : 170g
1270 1270  
1271 -
1272 1272  = 10. FCC Caution for RS485LN-US915 =
1273 1273  
1274 1274  (((

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