Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.12 >
edited by Xiaoling
on 2022/06/06 11:22
To version < 58.33 >
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  (((
... ... @@ -831,6 +831,7 @@
831 831  
832 832  
833 833  
828 +
834 834  ==== **RS485 command timeout** ====
835 835  
836 836  (((
... ... @@ -936,142 +936,268 @@
936 936  
937 937  ==== **Manually trigger an Uplink** ====
938 938  
934 +(((
939 939  Ask device to send an uplink immediately.
936 +)))
940 940  
941 -* **AT Command:**
938 +* (((
939 +**AT Command:**
940 +)))
942 942  
942 +(((
943 943  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
944 +)))
944 944  
946 +(((
947 +
948 +)))
945 945  
946 -* **Downlink Payload:**
950 +* (((
951 +**Downlink Payload:**
952 +)))
947 947  
954 +(((
948 948  **0x08 FF**, RS485-LN will immediately send an uplink.
956 +)))
949 949  
950 950  
951 951  
960 +
952 952  ==== **Clear RS485 Command** ====
953 953  
963 +(((
954 954  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
965 +)))
955 955  
956 -* **AT Command:**
967 +* (((
968 +**AT Command:**
969 +)))
957 957  
971 +(((
958 958  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
973 +)))
959 959  
975 +(((
960 960  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
977 +)))
961 961  
979 +(((
962 962  Example screen shot after clear all RS485 commands. 
981 +)))
963 963  
983 +(((
984 +
985 +)))
964 964  
987 +(((
965 965  The uplink screen shot is:
989 +)))
966 966  
967 967  [[image:1654160691922-496.png]]
968 968  
969 969  
970 -* **Downlink Payload:**
994 +* (((
995 +**Downlink Payload:**
996 +)))
971 971  
998 +(((
972 972  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1000 +)))
973 973  
974 974  
975 975  
1004 +
976 976  ==== **Set Serial Communication Parameters** ====
977 977  
1007 +(((
978 978  Set the Rs485 serial communication parameters:
1009 +)))
979 979  
980 -* **AT Command:**
1011 +* (((
1012 +**AT Command:**
1013 +)))
981 981  
1015 +(((
982 982  Set Baud Rate:
1017 +)))
983 983  
984 984  (% class="box infomessage" %)
985 985  (((
1021 +(((
986 986  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
987 987  )))
1024 +)))
988 988  
1026 +(((
989 989  Set UART Parity
1028 +)))
990 990  
991 991  (% class="box infomessage" %)
992 992  (((
1032 +(((
993 993  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
994 994  )))
1035 +)))
995 995  
1037 +(((
996 996  Set STOPBIT
1039 +)))
997 997  
998 998  (% class="box infomessage" %)
999 999  (((
1043 +(((
1000 1000  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1001 1001  )))
1046 +)))
1002 1002  
1048 +(((
1049 +
1050 +)))
1003 1003  
1004 -* **Downlink Payload:**
1052 +* (((
1053 +**Downlink Payload:**
1054 +)))
1005 1005  
1056 +(((
1006 1006  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1058 +)))
1007 1007  
1060 +(((
1008 1008  **Example:**
1062 +)))
1009 1009  
1010 -* A7 01 00 60   same as AT+BAUDR=9600
1011 -* 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 +)))
1012 1012  
1071 +(((
1013 1013  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1073 +)))
1014 1014  
1075 +(((
1015 1015  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1077 +)))
1016 1016  
1017 1017  
1080 +
1081 +
1018 1018  == 3.6 Listening mode for RS485 network ==
1019 1019  
1084 +(((
1020 1020  This feature support since firmware v1.4
1086 +)))
1021 1021  
1088 +(((
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.
1090 +)))
1023 1023  
1024 1024  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1025 1025  
1094 +(((
1026 1026  To enable the listening mode, use can run the command AT+RXMODE.
1096 +)))
1027 1027  
1098 +(((
1099 +
1100 +)))
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)
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 +)))
1035 1035  
1129 +(((
1036 1036  **Downlink Command:**
1131 +)))
1037 1037  
1133 +(((
1038 1038  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1135 +)))
1039 1039  
1137 +(((
1138 +
1139 +)))
1040 1040  
1141 +(((
1041 1041  **Example**:
1143 +)))
1042 1042  
1145 +(((
1043 1043  The RS485-LN is set to AT+RXMODE=2,1000
1147 +)))
1044 1044  
1149 +(((
1045 1045  There is a two Modbus commands in the RS485 network as below:
1151 +)))
1046 1046  
1153 +(((
1047 1047  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1155 +)))
1048 1048  
1157 +(((
1049 1049  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1159 +)))
1050 1050  
1161 +(((
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
1163 +)))
1052 1052  
1165 +(((
1053 1053  [[image:image-20220602171200-9.png]]
1167 +)))
1054 1054  
1169 +(((
1170 +
1171 +)))
1055 1055  
1173 +(((
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.
1175 +)))
1057 1057  
1058 1058  
1059 1059  == 3.7 Buttons ==
1060 1060  
1061 1061  
1062 -(% border="1" style="background-color:#f7faff; width:500px" %)
1063 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1064 -|**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**
1065 -|**RST**|(% style="width:1420px" %)Reboot RS485
1066 -|**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"]]
1067 1067  
1187 +
1068 1068  == 3.8 LEDs ==
1069 1069  
1070 -(% border="1" style="background-color:#f7faff; width:500px" %)
1071 -|=**LEDs**|=**Feature**
1072 -|**PWR**|Always on if there is power
1073 -|**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.
1190 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1191 +|=(% style="width: 30px;" %)**LEDs**|=(% style="width: 400px;" %)**Feature**
1192 +|(% style="width:30px" %)**PWR**|=(% style="width: 400px;" %)Always on if there is power
1193 +|(% 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.
1074 1074  
1195 +
1075 1075  = 4. Case Study =
1076 1076  
1077 1077  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]]
... ... @@ -1081,19 +1081,26 @@
1081 1081  
1082 1082  == 5.1 Access AT Command ==
1083 1083  
1205 +(((
1084 1084  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.
1207 +)))
1085 1085  
1086 1086  [[image:1654162355560-817.png]]
1087 1087  
1088 1088  
1212 +(((
1089 1089  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:
1214 +)))
1090 1090  
1091 1091  [[image:1654162368066-342.png]]
1092 1092  
1093 1093  
1219 +(((
1094 1094  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/]]
1221 +)))
1095 1095  
1096 1096  
1224 +
1097 1097  == 5.2 Common AT Command Sequence ==
1098 1098  
1099 1099  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1248,7 +1248,6 @@
1248 1248  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1249 1249  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1250 1250  
1251 -
1252 1252  = 9.Packing Info =
1253 1253  
1254 1254  
... ... @@ -1265,7 +1265,6 @@
1265 1265  * Package Size / pcs : 14.5 x 8 x 5 cm
1266 1266  * Weight / pcs : 170g
1267 1267  
1268 -
1269 1269  = 10. FCC Caution for RS485LN-US915 =
1270 1270  
1271 1271  (((

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