Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.7 >
edited by Xiaoling
on 2022/06/06 11:22
To version < 58.32 >
edited by Xiaoling
on 2022/06/06 11:47
>
Change comment: There is no comment for this version

Summary

Details

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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  (((
... ... @@ -704,64 +704,126 @@
704 704  
705 705  ==== **Set RS485 Sampling Commands** ====
706 706  
701 +(((
707 707  AT+COMMANDx or AT+DATACUTx
703 +)))
708 708  
705 +(((
709 709  These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
707 +)))
710 710  
709 +(((
710 +
711 +)))
711 711  
712 -* **AT Command:**
713 +* (((
714 +**AT Command:**
715 +)))
713 713  
714 714  (% class="box infomessage" %)
715 715  (((
719 +(((
716 716  **AT+COMMANDx: Configure RS485 read command to sensor.**
717 717  )))
722 +)))
718 718  
719 719  (% class="box infomessage" %)
720 720  (((
726 +(((
721 721  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
722 722  )))
729 +)))
723 723  
731 +(((
732 +
733 +)))
724 724  
725 -* **Downlink Payload:**
735 +* (((
736 +**Downlink Payload:**
737 +)))
726 726  
739 +(((
727 727  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
741 +)))
728 728  
743 +(((
729 729  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
745 +)))
730 730  
747 +(((
731 731  Format: AF MM NN LL XX XX XX XX YY
749 +)))
732 732  
751 +(((
733 733  Where:
753 +)))
734 734  
735 -* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
736 -* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
737 -* LL:  The length of AT+COMMAND or AT+DATACUT command
738 -* XX XX XX XX: AT+COMMAND or AT+DATACUT command
739 -* YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
755 +* (((
756 +MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
757 +)))
758 +* (((
759 +NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
760 +)))
761 +* (((
762 +LL:  The length of AT+COMMAND or AT+DATACUT command
763 +)))
764 +* (((
765 +XX XX XX XX: AT+COMMAND or AT+DATACUT command
766 +)))
767 +* (((
768 +YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
769 +)))
740 740  
771 +(((
741 741  **Example:**
773 +)))
742 742  
775 +(((
743 743  (% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
777 +)))
744 744  
779 +(((
745 745  (% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
781 +)))
746 746  
783 +(((
747 747  (% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
785 +)))
748 748  
749 749  
750 750  
789 +
751 751  ==== **Fast command to handle MODBUS device** ====
752 752  
792 +(((
753 753  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 +)))
754 754  
796 +(((
755 755  This command is valid since v1.3 firmware version
798 +)))
756 756  
800 +(((
757 757  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 +)))
758 758  
804 +(((
805 +
806 +)))
759 759  
808 +(((
760 760  **Example:**
810 +)))
761 761  
762 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
763 -* 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.
764 -* 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 +)))
765 765  
766 766  [[image:image-20220602165351-6.png]]
767 767  
... ... @@ -769,201 +769,376 @@
769 769  
770 770  
771 771  
828 +
772 772  ==== **RS485 command timeout** ====
773 773  
831 +(((
774 774  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 +)))
775 775  
835 +(((
776 776  Default value: 0, range:  0 ~~ 65 seconds
837 +)))
777 777  
778 -* **AT Command:**
839 +* (((
840 +**AT Command:**
841 +)))
779 779  
780 780  (% class="box infomessage" %)
781 781  (((
845 +(((
782 782  **AT+CMDDLaa=hex(bb cc)*1000**
783 783  )))
848 +)))
784 784  
850 +(((
785 785  **Example:**
852 +)))
786 786  
854 +(((
787 787  **AT+CMDDL1=1000** to send the open time to 1000ms
856 +)))
788 788  
858 +(((
859 +
860 +)))
789 789  
790 -* **Downlink Payload:**
862 +* (((
863 +**Downlink Payload:**
864 +)))
791 791  
866 +(((
792 792  **0x AA aa bb cc**
868 +)))
793 793  
870 +(((
794 794  Same as: AT+CMDDLaa=hex(bb cc)*1000
872 +)))
795 795  
874 +(((
796 796   **Example:**
876 +)))
797 797  
878 +(((
798 798   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
880 +)))
799 799  
800 800  
801 801  
884 +
802 802  ==== **Uplink payload mode** ====
803 803  
887 +(((
804 804  Define to use one uplink or multiple uplinks for the sampling.
889 +)))
805 805  
891 +(((
806 806  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
893 +)))
807 807  
808 -* **AT Command:**
895 +* (((
896 +**AT Command:**
897 +)))
809 809  
810 810  (% class="box infomessage" %)
811 811  (((
901 +(((
812 812  **AT+DATAUP=0**
813 813  )))
904 +)))
814 814  
815 815  (% class="box infomessage" %)
816 816  (((
908 +(((
817 817  **AT+DATAUP=1**
818 818  )))
911 +)))
819 819  
913 +(((
914 +
915 +)))
820 820  
821 -* **Downlink Payload:**
917 +* (((
918 +**Downlink Payload:**
919 +)))
822 822  
921 +(((
823 823  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
923 +)))
824 824  
925 +(((
825 825  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
927 +)))
826 826  
827 827  
828 828  
931 +
829 829  ==== **Manually trigger an Uplink** ====
830 830  
934 +(((
831 831  Ask device to send an uplink immediately.
936 +)))
832 832  
833 -* **AT Command:**
938 +* (((
939 +**AT Command:**
940 +)))
834 834  
942 +(((
835 835  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
944 +)))
836 836  
946 +(((
947 +
948 +)))
837 837  
838 -* **Downlink Payload:**
950 +* (((
951 +**Downlink Payload:**
952 +)))
839 839  
954 +(((
840 840  **0x08 FF**, RS485-LN will immediately send an uplink.
956 +)))
841 841  
842 842  
843 843  
960 +
844 844  ==== **Clear RS485 Command** ====
845 845  
963 +(((
846 846  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
965 +)))
847 847  
848 -* **AT Command:**
967 +* (((
968 +**AT Command:**
969 +)))
849 849  
971 +(((
850 850  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
973 +)))
851 851  
975 +(((
852 852  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
977 +)))
853 853  
979 +(((
854 854  Example screen shot after clear all RS485 commands. 
981 +)))
855 855  
983 +(((
984 +
985 +)))
856 856  
987 +(((
857 857  The uplink screen shot is:
989 +)))
858 858  
859 859  [[image:1654160691922-496.png]]
860 860  
861 861  
862 -* **Downlink Payload:**
994 +* (((
995 +**Downlink Payload:**
996 +)))
863 863  
998 +(((
864 864  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1000 +)))
865 865  
866 866  
867 867  
1004 +
868 868  ==== **Set Serial Communication Parameters** ====
869 869  
1007 +(((
870 870  Set the Rs485 serial communication parameters:
1009 +)))
871 871  
872 -* **AT Command:**
1011 +* (((
1012 +**AT Command:**
1013 +)))
873 873  
1015 +(((
874 874  Set Baud Rate:
1017 +)))
875 875  
876 876  (% class="box infomessage" %)
877 877  (((
1021 +(((
878 878  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
879 879  )))
1024 +)))
880 880  
1026 +(((
881 881  Set UART Parity
1028 +)))
882 882  
883 883  (% class="box infomessage" %)
884 884  (((
1032 +(((
885 885  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
886 886  )))
1035 +)))
887 887  
1037 +(((
888 888  Set STOPBIT
1039 +)))
889 889  
890 890  (% class="box infomessage" %)
891 891  (((
1043 +(((
892 892  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
893 893  )))
1046 +)))
894 894  
1048 +(((
1049 +
1050 +)))
895 895  
896 -* **Downlink Payload:**
1052 +* (((
1053 +**Downlink Payload:**
1054 +)))
897 897  
1056 +(((
898 898  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1058 +)))
899 899  
1060 +(((
900 900  **Example:**
1062 +)))
901 901  
902 -* A7 01 00 60   same as AT+BAUDR=9600
903 -* 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 +)))
904 904  
1071 +(((
905 905  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1073 +)))
906 906  
1075 +(((
907 907  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1077 +)))
908 908  
909 909  
1080 +
1081 +
910 910  == 3.6 Listening mode for RS485 network ==
911 911  
1084 +(((
912 912  This feature support since firmware v1.4
1086 +)))
913 913  
1088 +(((
914 914  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 +)))
915 915  
916 916  [[image:image-20220602171200-8.png||height="567" width="1007"]]
917 917  
1094 +(((
918 918  To enable the listening mode, use can run the command AT+RXMODE.
1096 +)))
919 919  
1098 +(((
1099 +
1100 +)))
920 920  
921 -(% border="1" style="background-color:#ffffcc; width:500px" %)
922 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
923 -|(% 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.
924 -|(% 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
925 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
926 -|(% 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 +)))
927 927  
1129 +(((
928 928  **Downlink Command:**
1131 +)))
929 929  
1133 +(((
930 930  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1135 +)))
931 931  
1137 +(((
1138 +
1139 +)))
932 932  
1141 +(((
933 933  **Example**:
1143 +)))
934 934  
1145 +(((
935 935  The RS485-LN is set to AT+RXMODE=2,1000
1147 +)))
936 936  
1149 +(((
937 937  There is a two Modbus commands in the RS485 network as below:
1151 +)))
938 938  
1153 +(((
939 939  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1155 +)))
940 940  
1157 +(((
941 941  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1159 +)))
942 942  
1161 +(((
943 943  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 +)))
944 944  
1165 +(((
945 945  [[image:image-20220602171200-9.png]]
1167 +)))
946 946  
1169 +(((
1170 +
1171 +)))
947 947  
1173 +(((
948 948  (% 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 +)))
949 949  
950 950  
951 951  == 3.7 Buttons ==
952 952  
953 953  
954 -(% border="1" style="background-color:#f7faff; width:500px" %)
955 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
956 -|**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**
957 -|**RST**|(% style="width:1420px" %)Reboot RS485
958 -|**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"]]
959 959  
1187 +
1188 +
960 960  == 3.8 LEDs ==
961 961  
962 -(% border="1" style="background-color:#f7faff; width:500px" %)
963 -|=**LEDs**|=**Feature**
964 -|**PWR**|Always on if there is power
965 -|**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.
966 966  
1196 +
1197 +
967 967  = 4. Case Study =
968 968  
969 969  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]]
... ... @@ -973,19 +973,26 @@
973 973  
974 974  == 5.1 Access AT Command ==
975 975  
1207 +(((
976 976  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 +)))
977 977  
978 978  [[image:1654162355560-817.png]]
979 979  
980 980  
1214 +(((
981 981  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 +)))
982 982  
983 983  [[image:1654162368066-342.png]]
984 984  
985 985  
1221 +(((
986 986  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 +)))
987 987  
988 988  
1226 +
989 989  == 5.2 Common AT Command Sequence ==
990 990  
991 991  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1140,7 +1140,6 @@
1140 1140  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1141 1141  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1142 1142  
1143 -
1144 1144  = 9.Packing Info =
1145 1145  
1146 1146  
... ... @@ -1157,7 +1157,6 @@
1157 1157  * Package Size / pcs : 14.5 x 8 x 5 cm
1158 1158  * Weight / pcs : 170g
1159 1159  
1160 -
1161 1161  = 10. FCC Caution for RS485LN-US915 =
1162 1162  
1163 1163  (((

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