Error Codes; Procedure To Read An Error Code - Mitsubishi Q2ACPU User Manual

22. TROUBLESHOOTING

22.3.1 Error Codes

There are errors that is detected by the self-diagnostics function of the CPU module, and
that is detected while communicating with the CPU module.
The table below shows the link between the type of error detection, the point of error
detection and the error codes.
Error Detection Type
Detection by the self-
diagnostics function of CPU module
the CPU module
CPU module
Serial communication
Detection while
CC-Link module
communicating with
the CPU module
Ethernet module
MELSECNET/10 network
module

22.3.2 Procedure to read an error code

When an error occurs, error codes and error messages can be read with the peripheral
devices.
For details on the setting method for each function, refer to the GX Developer Operating
Manual or SW IVD-GPPQ Operating Manual (Offline).
Error Detection Point
1000 to 9999
4000
7000
B000
C000
F000
*1: The error codes of the CPU module are categorizes according to minor errors, moderate
errors and major errors.
Minor error:
Moderate error: Errors that CPU module such as a WDT error stops the operation
Minor error:
"The error that the QnACPU continues operation" and "the error that QnACPU stops
operation" are determined by "CPU operation status" of the error code list.
Error Code
*1
Section 22.3.3 to Section 22.3.9
to 4FFF Appendix 5
H H
to 7FFF Serial Communication Module User's Manual
H H
to BFFF CC-Link System Master/Local Module User's Manual
H H
to CFFF Ethernet Interface Module User's Manual
H H
QnA/Q4AR MELSECNET/10 Network System
to FFFF
H H
Reference Manual
Errors that CPU module such as a battery error continues the operation
(Error code: 1300 to 9999)
(Error code: 1300 to 9999)
Errors that CPU module such as a RAM error stops the operation
(Error code: 1000 to 1299)
22 - 16
Reference for Error Contents