APPX
Appendix 1 Error Codes
701
A
APPENDICES
Appendix 1 Error Codes
The CPU module stores the corresponding error code in the special register (SD) upon detection of an error by the self-
diagnostic function. If an error occurs when the data communications are requested from the engineering tool, intelligent
function module, or network system connected, the CPU module returns the corresponding error code to the request source.
The error details and cause can be identified by checking the error code. The error code can be checked in either of the
following ways:
• Module diagnostics by the engineering tool ( MELSEC iQ-R CPU Module User's Manual (Startup))
• Special register (SD0 (Latest self-diagnostics error code), SD10 to SD25 (Self-diagnostic error number)) ( Page 833
List of Special Register Areas)
This section describes errors that may occur in the CPU module and actions to be taken for the errors.
Error code system
All error codes are given in hexadecimal format (4 digits) (16-bit unsigned integer). The type of error includes the error, which
is detected through the self-diagnostic function of each module, and the common error, which is detected during data
communications between modules. The following table lists the error detection type and the error code ranges.
Error detection type Range Description
By the self-diagnostic function of
each module
Minor error 1000H to 1FFFH Error code specific to each module, such as self-diagnostic errors
Moderate error 2000H to 3BFFH
Major error 3C00H to 3FFFH
During data communications between modules 4000H to 4FFFH Error in the CPU module
6F00H to 6FFFH Error in the redundant function module
7000H to 7FFFH Error in the serial communication module
B000H to BFFFH Error in the CC-Link module
C000H to CFBFH Error in the Ethernet-equipped module
CFC0H to CFFFH Error in CC-Link IE Field Network Basic
D000H to DFFFH Error in the CC-Link IE Field Network module
E000H to EFFFH Error in the CC-Link IE Controller Network module
F000H to FFFFH Error in the MELSECNET/H network module or MELSECNET/10 network
module
To Next Page
Loading...
