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ATIM_ACW-DINRSM_UG_EN_V2.8
The ACW will return a response to the "Modbus Request" command, as described :
Description and value
Byte 1
Answer to frames of command: 0x07
Byte 2
Modbus request command: 0x7F
Byte 3..n
Function
code
0x01, 0x02
Byte(s) including the reading of requested bits. The
number of Bytes turned back dealing with the number of
multiples of 8 from the number of requested bits plus 1.
Eg : If the reading of 7 bits is requested, the answer will
only hold one Byte grouping all 7 bits.
If 9 bits are requested, the answer will hold with 2
octects.
Function
code
0x03, 0x04
Bytes holding the requested registers values.
Function
code
0x0F
The answer does hold one only Byte (Byte 3) which deals
with the number of written bits (coded on 1 Byte)
Function
code
0x10
The answer does hold one only Byte (Byte 3) which deals
with the number of written registers (coded on 1 Byte)
