IM00120
127
IM00120
MSC-3 Instruction Manual
Function Code 04: Read Input Registers
Request:
Function code
1 byte
4
Starting address
2 bytes
0 to 18
Quantity of registers
2 bytes
1 to 19
Response:
Function code
1 byte
4
Byte count
1 byte
2 x (Quantity of registers)
Register value(s)
2 x (Quantity of registers) bytes
MSC-3nput register(s)
Error:
Function code
1 byte
132 (128+function code, 0x84)
Exception code
1 byte
1, 2 or 3
Function Code 05: Write Single Cell
Request:
Function code
1 byte
5
Output address
2 bytes
0 to 4
Output value
2 bytes
0x0000 or 0xFF00
Response:
Function code
1 byte
5
Output address
2 bytes
0 to 4
Output value
2 bytes
0x0000 or 0xFF00
Error:
Function code
1 byte
133 (128+function code, 0x85)
Exception code
1 byte
1, 2 or 3
Function Code 06: Write Single Register
Request:
Function code
1 byte
6
Register address
2 bytes
0 to 9
Register value
2 bytes
Data for MSC-3 holding register
Response:
Function code
1 byte
6
Register address
2 bytes
0 to 9
Register value
2 bytes
Data for MSC-3 holding register
Содержание MSC-3
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