Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual
Last modified by Bei Jinggeng on 2025/01/16 11:36
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... ... @@ -795,35 +795,18 @@ 795 795 796 796 ==== **Fast command to handle MODBUS device** ==== 797 797 798 -((( 799 799 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]]. 800 -))) 801 801 802 -((( 803 803 This command is valid since v1.3 firmware version 804 -))) 805 805 806 -((( 807 807 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. 808 -))) 809 809 810 -((( 811 - 812 -))) 813 813 814 -((( 815 815 **Example:** 816 -))) 817 817 818 -* ((( 819 -AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN. 820 -))) 821 -* ((( 822 -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. 823 -))) 824 -* ((( 825 -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. 826 -))) 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. 827 827 828 828 [[image:image-20220602165351-6.png]] 829 829