Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.8 >
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

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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  (((
... ... @@ -795,18 +795,35 @@
795 795  
796 796  ==== **Fast command to handle MODBUS device** ====
797 797  
792 +(((
798 798  AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
794 +)))
799 799  
796 +(((
800 800  This command is valid since v1.3 firmware version
798 +)))
801 801  
800 +(((
802 802  AT+MBFUN can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
802 +)))
803 803  
804 +(((
805 +
806 +)))
804 804  
808 +(((
805 805  **Example:**
810 +)))
806 806  
807 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
808 -* AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
809 -* AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
812 +* (((
813 +AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
814 +)))
815 +* (((
816 +AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
817 +)))
818 +* (((
819 +AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
820 +)))
810 810  
811 811  [[image:image-20220602165351-6.png]]
812 812  
... ... @@ -814,200 +814,373 @@
814 814  
815 815  
816 816  
828 +
817 817  ==== **RS485 command timeout** ====
818 818  
831 +(((
819 819  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 +)))
820 820  
835 +(((
821 821  Default value: 0, range:  0 ~~ 65 seconds
837 +)))
822 822  
823 -* **AT Command:**
839 +* (((
840 +**AT Command:**
841 +)))
824 824  
825 825  (% class="box infomessage" %)
826 826  (((
845 +(((
827 827  **AT+CMDDLaa=hex(bb cc)*1000**
828 828  )))
848 +)))
829 829  
850 +(((
830 830  **Example:**
852 +)))
831 831  
854 +(((
832 832  **AT+CMDDL1=1000** to send the open time to 1000ms
856 +)))
833 833  
858 +(((
859 +
860 +)))
834 834  
835 -* **Downlink Payload:**
862 +* (((
863 +**Downlink Payload:**
864 +)))
836 836  
866 +(((
837 837  **0x AA aa bb cc**
868 +)))
838 838  
870 +(((
839 839  Same as: AT+CMDDLaa=hex(bb cc)*1000
872 +)))
840 840  
874 +(((
841 841   **Example:**
876 +)))
842 842  
878 +(((
843 843   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
880 +)))
844 844  
845 845  
846 846  
884 +
847 847  ==== **Uplink payload mode** ====
848 848  
887 +(((
849 849  Define to use one uplink or multiple uplinks for the sampling.
889 +)))
850 850  
891 +(((
851 851  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
893 +)))
852 852  
853 -* **AT Command:**
895 +* (((
896 +**AT Command:**
897 +)))
854 854  
855 855  (% class="box infomessage" %)
856 856  (((
901 +(((
857 857  **AT+DATAUP=0**
858 858  )))
904 +)))
859 859  
860 860  (% class="box infomessage" %)
861 861  (((
908 +(((
862 862  **AT+DATAUP=1**
863 863  )))
911 +)))
864 864  
913 +(((
914 +
915 +)))
865 865  
866 -* **Downlink Payload:**
917 +* (((
918 +**Downlink Payload:**
919 +)))
867 867  
921 +(((
868 868  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
923 +)))
869 869  
925 +(((
870 870  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
927 +)))
871 871  
872 872  
873 873  
931 +
874 874  ==== **Manually trigger an Uplink** ====
875 875  
934 +(((
876 876  Ask device to send an uplink immediately.
936 +)))
877 877  
878 -* **AT Command:**
938 +* (((
939 +**AT Command:**
940 +)))
879 879  
942 +(((
880 880  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
944 +)))
881 881  
946 +(((
947 +
948 +)))
882 882  
883 -* **Downlink Payload:**
950 +* (((
951 +**Downlink Payload:**
952 +)))
884 884  
954 +(((
885 885  **0x08 FF**, RS485-LN will immediately send an uplink.
956 +)))
886 886  
887 887  
888 888  
960 +
889 889  ==== **Clear RS485 Command** ====
890 890  
963 +(((
891 891  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
965 +)))
892 892  
893 -* **AT Command:**
967 +* (((
968 +**AT Command:**
969 +)))
894 894  
971 +(((
895 895  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
973 +)))
896 896  
975 +(((
897 897  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
977 +)))
898 898  
979 +(((
899 899  Example screen shot after clear all RS485 commands. 
981 +)))
900 900  
983 +(((
984 +
985 +)))
901 901  
987 +(((
902 902  The uplink screen shot is:
989 +)))
903 903  
904 904  [[image:1654160691922-496.png]]
905 905  
906 906  
907 -* **Downlink Payload:**
994 +* (((
995 +**Downlink Payload:**
996 +)))
908 908  
998 +(((
909 909  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1000 +)))
910 910  
911 911  
912 912  
1004 +
913 913  ==== **Set Serial Communication Parameters** ====
914 914  
1007 +(((
915 915  Set the Rs485 serial communication parameters:
1009 +)))
916 916  
917 -* **AT Command:**
1011 +* (((
1012 +**AT Command:**
1013 +)))
918 918  
1015 +(((
919 919  Set Baud Rate:
1017 +)))
920 920  
921 921  (% class="box infomessage" %)
922 922  (((
1021 +(((
923 923  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
924 924  )))
1024 +)))
925 925  
1026 +(((
926 926  Set UART Parity
1028 +)))
927 927  
928 928  (% class="box infomessage" %)
929 929  (((
1032 +(((
930 930  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
931 931  )))
1035 +)))
932 932  
1037 +(((
933 933  Set STOPBIT
1039 +)))
934 934  
935 935  (% class="box infomessage" %)
936 936  (((
1043 +(((
937 937  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
938 938  )))
1046 +)))
939 939  
1048 +(((
1049 +
1050 +)))
940 940  
941 -* **Downlink Payload:**
1052 +* (((
1053 +**Downlink Payload:**
1054 +)))
942 942  
1056 +(((
943 943  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1058 +)))
944 944  
1060 +(((
945 945  **Example:**
1062 +)))
946 946  
947 -* A7 01 00 60   same as AT+BAUDR=9600
948 -* 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 +)))
949 949  
1071 +(((
950 950  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1073 +)))
951 951  
1075 +(((
952 952  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1077 +)))
953 953  
954 954  
1080 +
1081 +
955 955  == 3.6 Listening mode for RS485 network ==
956 956  
1084 +(((
957 957  This feature support since firmware v1.4
1086 +)))
958 958  
1088 +(((
959 959  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 +)))
960 960  
961 961  [[image:image-20220602171200-8.png||height="567" width="1007"]]
962 962  
1094 +(((
963 963  To enable the listening mode, use can run the command AT+RXMODE.
1096 +)))
964 964  
1098 +(((
1099 +
1100 +)))
965 965  
966 -(% border="1" style="background-color:#ffffcc; width:500px" %)
967 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
968 -|(% 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.
969 -|(% 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
970 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
971 -|(% 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 +)))
972 972  
1129 +(((
973 973  **Downlink Command:**
1131 +)))
974 974  
1133 +(((
975 975  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1135 +)))
976 976  
1137 +(((
1138 +
1139 +)))
977 977  
1141 +(((
978 978  **Example**:
1143 +)))
979 979  
1145 +(((
980 980  The RS485-LN is set to AT+RXMODE=2,1000
1147 +)))
981 981  
1149 +(((
982 982  There is a two Modbus commands in the RS485 network as below:
1151 +)))
983 983  
1153 +(((
984 984  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1155 +)))
985 985  
1157 +(((
986 986  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1159 +)))
987 987  
1161 +(((
988 988  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 +)))
989 989  
1165 +(((
990 990  [[image:image-20220602171200-9.png]]
1167 +)))
991 991  
1169 +(((
1170 +
1171 +)))
992 992  
1173 +(((
993 993  (% 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 +)))
994 994  
995 995  
996 996  == 3.7 Buttons ==
997 997  
998 998  
999 -(% border="1" style="background-color:#f7faff; width:500px" %)
1000 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1001 -|**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**
1002 -|**RST**|(% style="width:1420px" %)Reboot RS485
1003 -|**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"]]
1004 1004  
1187 +
1188 +
1005 1005  == 3.8 LEDs ==
1006 1006  
1007 -(% border="1" style="background-color:#f7faff; width:500px" %)
1008 -|=**LEDs**|=**Feature**
1009 -|**PWR**|Always on if there is power
1010 -|**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.
1011 1011  
1012 1012  = 4. Case Study =
1013 1013  
... ... @@ -1018,19 +1018,26 @@
1018 1018  
1019 1019  == 5.1 Access AT Command ==
1020 1020  
1205 +(((
1021 1021  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 +)))
1022 1022  
1023 1023  [[image:1654162355560-817.png]]
1024 1024  
1025 1025  
1212 +(((
1026 1026  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 +)))
1027 1027  
1028 1028  [[image:1654162368066-342.png]]
1029 1029  
1030 1030  
1219 +(((
1031 1031  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 +)))
1032 1032  
1033 1033  
1224 +
1034 1034  == 5.2 Common AT Command Sequence ==
1035 1035  
1036 1036  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1185,7 +1185,6 @@
1185 1185  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1186 1186  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1187 1187  
1188 -
1189 1189  = 9.Packing Info =
1190 1190  
1191 1191  
... ... @@ -1202,7 +1202,6 @@
1202 1202  * Package Size / pcs : 14.5 x 8 x 5 cm
1203 1203  * Weight / pcs : 170g
1204 1204  
1205 -
1206 1206  = 10. FCC Caution for RS485LN-US915 =
1207 1207  
1208 1208  (((

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