Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.9 >
edited by Xiaoling
on 2022/06/06 11:22
To version < 58.28 >
edited by Xiaoling
on 2022/06/06 11:41
>
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  (((
... ... @@ -831,200 +831,373 @@
831 831  
832 832  
833 833  
828 +
834 834  ==== **RS485 command timeout** ====
835 835  
831 +(((
836 836  Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action.
833 +)))
837 837  
835 +(((
838 838  Default value: 0, range:  0 ~~ 65 seconds
837 +)))
839 839  
840 -* **AT Command:**
839 +* (((
840 +**AT Command:**
841 +)))
841 841  
842 842  (% class="box infomessage" %)
843 843  (((
845 +(((
844 844  **AT+CMDDLaa=hex(bb cc)*1000**
845 845  )))
848 +)))
846 846  
850 +(((
847 847  **Example:**
852 +)))
848 848  
854 +(((
849 849  **AT+CMDDL1=1000** to send the open time to 1000ms
856 +)))
850 850  
858 +(((
859 +
860 +)))
851 851  
852 -* **Downlink Payload:**
862 +* (((
863 +**Downlink Payload:**
864 +)))
853 853  
866 +(((
854 854  **0x AA aa bb cc**
868 +)))
855 855  
870 +(((
856 856  Same as: AT+CMDDLaa=hex(bb cc)*1000
872 +)))
857 857  
874 +(((
858 858   **Example:**
876 +)))
859 859  
878 +(((
860 860   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
880 +)))
861 861  
862 862  
863 863  
884 +
864 864  ==== **Uplink payload mode** ====
865 865  
887 +(((
866 866  Define to use one uplink or multiple uplinks for the sampling.
889 +)))
867 867  
891 +(((
868 868  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
893 +)))
869 869  
870 -* **AT Command:**
895 +* (((
896 +**AT Command:**
897 +)))
871 871  
872 872  (% class="box infomessage" %)
873 873  (((
901 +(((
874 874  **AT+DATAUP=0**
875 875  )))
904 +)))
876 876  
877 877  (% class="box infomessage" %)
878 878  (((
908 +(((
879 879  **AT+DATAUP=1**
880 880  )))
911 +)))
881 881  
913 +(((
914 +
915 +)))
882 882  
883 -* **Downlink Payload:**
917 +* (((
918 +**Downlink Payload:**
919 +)))
884 884  
921 +(((
885 885  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
923 +)))
886 886  
925 +(((
887 887  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
927 +)))
888 888  
889 889  
890 890  
931 +
891 891  ==== **Manually trigger an Uplink** ====
892 892  
934 +(((
893 893  Ask device to send an uplink immediately.
936 +)))
894 894  
895 -* **AT Command:**
938 +* (((
939 +**AT Command:**
940 +)))
896 896  
942 +(((
897 897  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
944 +)))
898 898  
946 +(((
947 +
948 +)))
899 899  
900 -* **Downlink Payload:**
950 +* (((
951 +**Downlink Payload:**
952 +)))
901 901  
954 +(((
902 902  **0x08 FF**, RS485-LN will immediately send an uplink.
956 +)))
903 903  
904 904  
905 905  
960 +
906 906  ==== **Clear RS485 Command** ====
907 907  
963 +(((
908 908  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
965 +)))
909 909  
910 -* **AT Command:**
967 +* (((
968 +**AT Command:**
969 +)))
911 911  
971 +(((
912 912  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
973 +)))
913 913  
975 +(((
914 914  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
977 +)))
915 915  
979 +(((
916 916  Example screen shot after clear all RS485 commands. 
981 +)))
917 917  
983 +(((
984 +
985 +)))
918 918  
987 +(((
919 919  The uplink screen shot is:
989 +)))
920 920  
921 921  [[image:1654160691922-496.png]]
922 922  
923 923  
924 -* **Downlink Payload:**
994 +* (((
995 +**Downlink Payload:**
996 +)))
925 925  
998 +(((
926 926  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1000 +)))
927 927  
928 928  
929 929  
1004 +
930 930  ==== **Set Serial Communication Parameters** ====
931 931  
1007 +(((
932 932  Set the Rs485 serial communication parameters:
1009 +)))
933 933  
934 -* **AT Command:**
1011 +* (((
1012 +**AT Command:**
1013 +)))
935 935  
1015 +(((
936 936  Set Baud Rate:
1017 +)))
937 937  
938 938  (% class="box infomessage" %)
939 939  (((
1021 +(((
940 940  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
941 941  )))
1024 +)))
942 942  
1026 +(((
943 943  Set UART Parity
1028 +)))
944 944  
945 945  (% class="box infomessage" %)
946 946  (((
1032 +(((
947 947  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
948 948  )))
1035 +)))
949 949  
1037 +(((
950 950  Set STOPBIT
1039 +)))
951 951  
952 952  (% class="box infomessage" %)
953 953  (((
1043 +(((
954 954  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
955 955  )))
1046 +)))
956 956  
1048 +(((
1049 +
1050 +)))
957 957  
958 -* **Downlink Payload:**
1052 +* (((
1053 +**Downlink Payload:**
1054 +)))
959 959  
1056 +(((
960 960  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1058 +)))
961 961  
1060 +(((
962 962  **Example:**
1062 +)))
963 963  
964 -* A7 01 00 60   same as AT+BAUDR=9600
965 -* 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 +)))
966 966  
1071 +(((
967 967  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1073 +)))
968 968  
1075 +(((
969 969  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1077 +)))
970 970  
971 971  
1080 +
1081 +
972 972  == 3.6 Listening mode for RS485 network ==
973 973  
1084 +(((
974 974  This feature support since firmware v1.4
1086 +)))
975 975  
1088 +(((
976 976  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 +)))
977 977  
978 978  [[image:image-20220602171200-8.png||height="567" width="1007"]]
979 979  
1094 +(((
980 980  To enable the listening mode, use can run the command AT+RXMODE.
1096 +)))
981 981  
1098 +(((
1099 +
1100 +)))
982 982  
983 -(% border="1" style="background-color:#ffffcc; width:500px" %)
984 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
985 -|(% 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.
986 -|(% 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
987 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
988 -|(% 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 +)))
989 989  
1129 +(((
990 990  **Downlink Command:**
1131 +)))
991 991  
1133 +(((
992 992  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1135 +)))
993 993  
1137 +(((
1138 +
1139 +)))
994 994  
1141 +(((
995 995  **Example**:
1143 +)))
996 996  
1145 +(((
997 997  The RS485-LN is set to AT+RXMODE=2,1000
1147 +)))
998 998  
1149 +(((
999 999  There is a two Modbus commands in the RS485 network as below:
1151 +)))
1000 1000  
1153 +(((
1001 1001  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1155 +)))
1002 1002  
1157 +(((
1003 1003  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1159 +)))
1004 1004  
1161 +(((
1005 1005  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 +)))
1006 1006  
1165 +(((
1007 1007  [[image:image-20220602171200-9.png]]
1167 +)))
1008 1008  
1169 +(((
1170 +
1171 +)))
1009 1009  
1173 +(((
1010 1010  (% 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 +)))
1011 1011  
1012 1012  
1013 1013  == 3.7 Buttons ==
1014 1014  
1015 1015  
1016 -(% border="1" style="background-color:#f7faff; width:500px" %)
1017 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1018 -|**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**
1019 -|**RST**|(% style="width:1420px" %)Reboot RS485
1020 -|**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"]]
1021 1021  
1187 +
1188 +
1022 1022  == 3.8 LEDs ==
1023 1023  
1024 -(% border="1" style="background-color:#f7faff; width:500px" %)
1025 -|=**LEDs**|=**Feature**
1026 -|**PWR**|Always on if there is power
1027 -|**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:500px" %)
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.
1028 1028  
1029 1029  = 4. Case Study =
1030 1030  
... ... @@ -1035,19 +1035,26 @@
1035 1035  
1036 1036  == 5.1 Access AT Command ==
1037 1037  
1205 +(((
1038 1038  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 +)))
1039 1039  
1040 1040  [[image:1654162355560-817.png]]
1041 1041  
1042 1042  
1212 +(((
1043 1043  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 +)))
1044 1044  
1045 1045  [[image:1654162368066-342.png]]
1046 1046  
1047 1047  
1219 +(((
1048 1048  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 +)))
1049 1049  
1050 1050  
1224 +
1051 1051  == 5.2 Common AT Command Sequence ==
1052 1052  
1053 1053  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1202,7 +1202,6 @@
1202 1202  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1203 1203  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1204 1204  
1205 -
1206 1206  = 9.Packing Info =
1207 1207  
1208 1208  
... ... @@ -1219,7 +1219,6 @@
1219 1219  * Package Size / pcs : 14.5 x 8 x 5 cm
1220 1220  * Weight / pcs : 170g
1221 1221  
1222 -
1223 1223  = 10. FCC Caution for RS485LN-US915 =
1224 1224  
1225 1225  (((

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