Error Code List And Action - Mitsubishi Electric MELSEC-Q Structured Programming Manual

FXCPU Structured Programming Manual
[Device & Common]
5.2.2

Error Code List and Action

PLC
Error operation
code at error
occurrence
I/O configuration error [M8060(D8060)]
Head unconnected I/O device number
Example: When X020 is unconnected
Example: Continues
1020 operation
• 1st to 3rd digits: Device number
• 4th digit: I/O type (1:Input X 0:Output Y)
Example: When D8060 stores "1020", inputs X020
PLC hardware error [M8061(D8061)]
0000 - No error
6101 RAM error
6102 Operation circuit error
6103 I/O bus error (while M8069 is ON)
Stops
6104 24V failure in function unit (while M8069 is ON)
operation
6105 Watchdog timer error
6110 Function extension memory failure (sum check error) Confirm that the function extension memory is attached correctly.
256
Contents of error
1 0 2 0 Value converted into BCD
Device number
1:Input X 0:Output Y
and later are unconnected.
5.2 FX1S/FX1N/FX1NC/FX2N/FX2NC PLCs
Action
Unconnected I/O relay numbers are programmed.
The PLC continues its operation.
Modify the program if necessary.
Confirm that extension cables are connected correctly.
The sampling (scan) time exceeds the value stored in D8000.
Check the program.
5 Errors