Communication Errors; Modbus Errors - LiteOn EVO600021S0D2E20F User Manual

23
EF6 (External Fault 6)
24
Retain
Retain
25
Retain
26
27
Retain
28
Retain
29
Retain
30
Retain

11.8 Communication Errors

11.8.1 Modbus Errors

The Modbus error codes are listed in the following table.
When an error occurs, remove the cause of the fault and restart communications. Each error
code may have different definitions depending on the function code.
Error Code Function Code
1
2
3
4
54
FbH (PID Feedback High)
55
FbL (PID Feedback Low)
56
CE (Modbus
57
Communication Error)
58
CF (Control Fault)
59
60
Retain
61
Retain
3,6,8,10 Function code error
3 Read data is outside the setting range
6 Write data is outside the setting range
Write data is outside the setting range
10
3 Read data exceeds 125 pieces
6 Write data is outside the setting range
8 Read request value error including CRC check error
Write data exceeds 123 pieces or byte count does not match
10
the amount of write data.
3 Read register error
6 Write register error
8 Response pocket error
10 Write register error
bUS (Option
Communication Error)
Err (EEPROM Error)
Description
188
85
Retain
86
Retain
Retain
87
TF07
88
Retain
89
Retain
90
Retain
91