Appendix 1.2 Error Code Detected During Device Monitor Execution; Appendix 1.2 - Mitsubishi Electric MELSEC Q Series User Manual

Appendix 1.2

This section describes error codes detected during device monitor function execution in Setting/monitoring tools for the
C Controller module.
Error code may not be returned as described in "(1) How to read error code".
Check details of "(2) Precautions for error code checking" first, and then refer to "(1) How to read error code".
(1) How to read error code
The error code is composed of 4 bytes.
The higher 2 bytes represents the error detection module and the lower 2 bytes represents the error details.
Error code
(Higher 2 bytes)
0101
0102
010A
010F
Error code
(Lower 2 bytes)
0000 to FFFF
H
(2) Precautions for error code checking
Precautions for error code checking are described below.
(a) Setting of "Transfer Setup" in Setting/monitoring tools for the C Controller module
Check that the actual system configuration and "Transfer Setup" are matched and monitored.
If the used system configuration and "Transfer Setup" setting are not matched, error code (higher 2 bytes) does
not indicate the correct error detection module.
For example, if the destination CPU module is actually QCPU (Q mode) and ACPU is set in "Transfer Setup",
error code (higher 2 bytes) may indicate the ACPU.
(b) To monitor another station
Check the manuals for used CPUs and the relayed network module also.
When it monitors another station, error details of the relayed network module (CC-Link IE Controller Network,
MELSECNET/H, MELSECNET/10, CC-Link, or CC-Link IE Field Network) may be stored in error code (lower 2
bytes).
In such case, error code (higher 2 bytes) may not match with the module in which any error occurs.
420
Error code detected during device monitor
execution
Error detection module
Higher
QCPU (A mode), ACPU
H
QnACPU
H
QCPU (Q mode), LCPU, C Controller module
H
GOT
H
Refer to the manual for the error detection module.
H
Error description
Lower
Error detection module
Error description