9-6
Section
Error Log
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, 2, 3...
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.
Error log record 6
Error log record 7
Error log record 1
Error log record 2
Lost
New record added
All records shifted
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.
DM2000
Error log pointer
DM2001
Error log record 1
DM2002
DM2003
DM2019
Error log record 7
DM2020
DM2021
to
Error classification
Error code
00
00
00
00
Leading word
Leading word + 1
Leading word + 2
Indicates the number of records stored in the log (0 to 7). A 0 indi-
cates no records.
Error classification: 00: Nonfatal
80: Fatal
Bit 15
8 7
0
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, 2, 3...
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.
Error log record 6
Error log record 7
Error log record 1
Error log record 2
Lost
New record added
All records shifted
2. You can store only the first 7 error log records, and ignore any subsequent
errors beyond those 7.
SRM1 Error Log Area