4 Modbus
TCP
26
Festo – GDCP-CMMO-ST-LK-C-HP-EN – 2017-05b – English
Modbus
command
Significance
Read excep
tion status
Read the fault number
Read exception status request (0x07)
Field
Bytes
Values
Byte no.
Function code
1
0x07
8
Read exception status response (0x07)
Field
Bytes
Values
Byte no.
Function code
1
0x07
8
Output data
1
0x01 ... 0xFF: Exception status
(fault number)
0x00: No fault
9
Read exception status exception (0x87)
Field
Bytes
Values
Byte no.
Error code
1
0x87
8
Exception code
1
0x01: illegal function
0x02: illegal data address
0x03: illegal data value
0x04: server device failure
9
Содержание CMMO-ST-C5-1-LKP
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