Logging may be disturbed by various symptoms
A description of this resolution:
- Reducing the number of formats used on one output level
The error has to be eliminated as follows:
Reducing the number of formats used on one output level (channels 2, 4 and 6) by
- distributing the logs in a way as to use the same formats as far as possible in the same channel; reducing the formats agglomeration depths.
The error has been eliminated from V7.2H, V8.0F and V7.2G-CE Minden.
'Logging may be disturbed by various symptoms' resolves the following:
Logs are not output according to the desired configuration.
The following symptoms may be appear:
- In matrix and status logs measuring points different from those entered in a tag group are represented. Logs are set 'off-scan' since destroyed formats would cause long record lengths (see Service Notice 7.1-143). Output formatting is faulty (too long log lines). Recipe: The batch log generates large files as the recipe log acc. to point 2. has generated too long record lengths. A disturbance course log cannot correctly interpret the tag group and will be output by printer only after a long period of time.
Further phenomena are imaginable!
The underlying cause is:
- Problem with format stack management
The stack is able to 'temporarily store' 20 formats of the tag groups. This means that the mass memory must not be constantly accessed.
If a format or a tag group is being processed new access to this format (tag group) on the stack will be interlocked. An error in this interlocking may cause deletion of a format (tag group) during processing.