Particular attention is paid to the file size. 64 KB is written to a file and then the next file is
begun. It is always started with OnDiagnose0. After file OnDiagnose10, it begins with
OnDiagnose0 again. After activation, it is also started with OnDiagnose0 the first time the
function is called.
OnInfo
This parameter defines whether the information output via the menu Info should be output to
a file.
The following
applies for the output to a file: The file is called OnInfoX.txt and is located in the
installation directory:
● ..\Siemens\WinCC\Diagnose
Particular attention is paid to the file size. 64 KB is written to a file and then the next file is
begun. It is always started with OnInfo0. After file OnInfo10, it begins with OnInfo0 again. After
activation, it is also started with OnInfo0 the first time the function is called.
6.3.3.5 Profile
Description
As of 10000 queued actions, by default, the system outputs message: "ActionOverflow:more
than 10000 Actions to work" to diagnostics file WinCC_Sys_01.log.
With this entry, determining the cause for an increase or overflow of the queue can only be
done with difficulty.
Menu command "Profile" now offers diagnostics information that enables the early detection
of growth or an overflow of the queue. Time measurements can be activated for actions and
an growth in the queue (ActionQueue) can be checked.
General Information on Queue Overflow
A queue overflows if too many actions are running in a cycle that is too small (gradually, the
actions to be processed will build up) or an action freezes (e.g. sleep, loop, dialog output,
waiting for a response from another application). All the other actions are then blocked in the
queue and cannot be processed.
This can be regained to a certain extend but with 10000 entries in the queue, this is no longer
possible.
WinCC diagnosis
6.3 ApDiag Menu Commands
WinCC: General information and installation
172 System Manual, 02/2017, A5E40840020-AA
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