KonNad C2000-A2-SDD8020-DD3, Руководство пользователя

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01 Function
Code
1 Byte, 01 = Read
01 Data Length 1 Byte, Data Length
01 Data 1 Byte, Binary of 0x01 is "0000 0001" (1 bit indicates 1 channel), 1 is closed, 0 is
open
5.2.3. Write DO Status (0x0F)
You can write 0 or 1 to the register, the value 0 indicates COM and NO are open, and the value 1 indicates COM
and NO are close.
Close DO1 and open DO2, the command is as follows:
0x000100000008FF0F006400020101
Command Field Description
0001 Transaction ID 2 Bytes, identification of a Modbus Request/Response transaction
0000 Protocol ID 2 Bytes, 0000 = Modbus protocol
0008 Length Field 2 Bytes, number of following bytes
FF Unit ID 1 Byte, 0xFF = Master device
0F Function Code 1 Byte, 0F = Write
0064 Starting Address 2 Bytes, address of the first register
0002 Quantity of
Registers
2 Bytes, the number of required registers
01 Data Length 1 Byte, Data Length
01 Data 1 Byte, Binary of 0x01 is "0001" (1 bit indicates 1 channel), 1 is closed, 0 is
open
In the response from the device we get:
0x000100000006FF0F00640002
Command Field Description
0001 Transaction ID 2 Bytes, identification of a Modbus Request/Response transaction
0000 Protocol ID 2 Bytes, 0000 = Modbus protocol
0006 Length Field 2 Bytes, number of following bytes
C2000-A2-SDD8020-DD3 User Manual
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