Error Codes; Appendix 1.1; Reading Error Codes - Mitsubishi Electric Q26UD(E)HCPU User Manual

Appendix 1.1

There are two types of errors: errors detected by the self-diagnostic function of the CPU module and errors detected
during communication with the CPU module. The following table shows the relationship between the error detection
pattern, error location, and error code.
Error detection
Error location
pattern
By the self-diagnostic
function of the CPU CPU module
module
CPU module
Serial communication
module, etc.
CC-Link (including the built-in
CC-Link function)
Ethernet (including the built-
During
in Ethernet function)
communication with
the CPU module
CC-Link IE Field Network
Basic
CC-Link IE Field Network
CC-Link IE Controller
Network
MELSECNET/H
*1 Error codes are classified into three levels.
• Minor error: Errors that allow a CPU module to continue its operation, such as a battery error
• Moderate error: Errors that may cause a CPU module to stop its operation, such as a WDT error (Error code:
1300 to 10000)
• Major error: Errors that may cause a CPU module to stop its operation, such as a RAM error (Error code: 1000 to
1299)
Whether the CPU module continues or stops its operation can be checked in the CPU Status column of the Error code
list (Page 308, Appendix 1.3 to Page 402, Appendix 1.9).
*2 If an error code that is not described in the list is detected, please consult your local Mitsubishi representative.
Appendix 1.2
Error codes can be read using a programming tool. For details on the operating method, refer to the following.
 Operating manual for the programming tool used

Error codes

Error code
*1*2
 Page 308, Appendix 1.3 to Page 402, Appendix 1.9
1000 to 10000
4000 to 4FFF Page 411, Appendix 1.11
H H
7000 to 7FFF
User's manuals for the serial communication module, etc.
H H
B000 to BFFF
User's manual of the CC-Link system master/local module
H H
• Ethernet Interface Module User's Manual
C000 to CFBF
• QnUCPU User's Manual (Communication via Built-in Ethernet Port)
H H
• MELSEC-L CPU Module User's Manual (Built-in Ethernet Function)
CFC0 to CFFF Page 411, Appendix 1.11
H H
D000 to DFFF
User's manual of the CC-Link IE Field Network module
H H
E000 to EFFF
• CC-Link IE Controller Network Reference Manual
H H
• Q Corresponding MELSECNET/H Network System Reference Manual
F000 to FFFF
H H
• For QnA/Q4AR MELSECNET/10 Network System Reference Manual

Reading error codes

APPENDICES
Reference
307
A