Omron CPM1 - PROGRAMING MANUAL 02-2001 Programming Manual page 574

Error Log
1, 2, 3...
SRM1 Error Log Area
Error log pointer
DM2000
DM2001
Error log record 1
DM2002
DM2003
to
DM2019
Error log record 7
DM2020
DM2021
1, 2, 3...
556
Note An error record with an error code of 00 will be stored in the error log for power
interruptions.
Error Log Storage Methods
The error log storage method is set in the PC Setup (DM 6655). Set any of the
following methods.
1. You can store the most recent 7 error log records and discard older records.
This is achieved by shifting the records as shown below so that the oldest
record (record 0) is lost whenever a new record is generated.
2. You can store only the first 7 error log records, and ignore any subsequent
errors beyond those 7.
3. You can disable the log so that no records are stored.
The default setting is the first method. Refer to Error Log Settings on page 21 for
details on the PC Setup for the error log.
Clearing the Error Log
To clear the entire error log, turn ON SR 25214 from a Programming Device. (Af-
ter the error log has been cleared, SR 25214 will turn OFF again automatically.)
In SRM1(-V2) PCs, the error log is stored in DM 2000 through DM 2021.
Indicates the number of records stored in the log (0 to 7). A 0 indi-
cates no records.
Each error log record is configured as follows:
Error Log Storage Methods
The error log storage method is set in the PC Setup (DM 6655). Set any of the
following methods.
1. You can store the most recent 7 error log records and discard older records.
This is achieved by shifting the records as shown below so that the oldest
record (record 0) is lost whenever a new record is generated.
2. You can store only the first 7 error log records, and ignore any subsequent
errors beyond those 7.
Lost
Error log record 1
Error log record 2
All records shifted
Error log record 6
Error log record 7
New record added
Bit 15
Leading word Error classification
Leading word + 1 00
Leading word + 2 00
Error classification: 00: Nonfatal
Lost
Error log record 1
Error log record 2
All records shifted
Error log record 6
Error log record 7
New record added
Section 9-6
8 7 0
Error code
00
00
80: Fatal