Omron CS1 -, Operation Manual

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9-2 Section Error Log
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9-1 Types of Troubleshooting Information
The Customizable Counter Unit records error information when an error occurs
in the Customizable Counter Unit or in the CPU Unit. The following types of infor-
mation are recorded in the Customizable Counter Unit.
One of the error flags will be turned ON to indicate when an error has occurred.
There are two types of error codes: Special I/O Unit error codes and Customiz-
able Counter Unit error codes.
The Special I/O Unit error codes are general error codes used by the Special I/O
Units. These error codes are placed in the first word of an error record in the error
log. The Customizable Counter Unit error codes provide specific information
about Customizable Counter Unit errors. These error codes are stored in
SR 23500 to SR 23507, in the detailed information in the error log, and in bits 00
to 07 of n+5 in the CIO Area words allocated in the CPU Unit.
Error Codes
Type Applicability Storage location Description
Special I/O Unit
error codes All Special I/O
Units First word of error
log record General error
information for
Special I/O Units
Customizable
Counter Unit error
codes Only the
Customizable
Counter Unit SR 23500 to
SR 23507 and
detailed
information in error
log Specific error
information for
Customizable
Counter Unit.
An error record is created in the error log when an error occurs. Each error re-
cord contains the Special I/O Unit error code, detailed information, and the time
read from the CPU Unit (see note). Up to 11 error records will be stored in the
error log, which is located in DM 6144 to DM 6199.
Note If the time cannot be accessed from the CPU Unit, all zeros will be stored for the
time.
Error occurs
Error flag(s) turned ON
Customizable Counter Unit
error code stored
Error record created
Relevant flags turned ON
SR 23500 to SR 23507
Customizable Counter
Unit error code
Special I/O Unit error code
Details 1 Details 2
Time of error
Note The Customizable Counter Unit
error code or other information
is stored for Details 2.
Note Refer to the manuals for the CS1-series PC for information on CPU Unit error
information.
9-2 Error Log
The error log registers the error records for errors that occur in the Customizable
Counter Unit. The error information stored in the error log can be used for trou-
bleshooting.
Error Flags
Unit Error Codes
Error Log