Siemens SIMATIC HMI Series System Manual page 171

OnErrorExecute
This parameter can be used to define whether the output of an OnErrorExecute (standard
function of WinCC, which is called by the system in case of an error) to a file or in the output
window. An OnErrorExecute is lost when the diagnostics window is not shown, another error
analysis is enabled with the output to a file, even afterward.
The following applies for the output to a file: The file is called OnErrorN.txt and is located in
the installation directory:
● ..\Siemens\WinCC\Diagnose
A certain number of entries is written to a file. Then the next file is begun. It is always started
with OnError0. After file OnError10, it begins with OnError0 again. After activating the project,
it starts with OnError0 again the first time the function is called. The size of the files can be
influenced by modifying the limit value for tag "dwErrorCount" of this WinCC standard function
in the C editor for the Global Script.
OnPrintf
This parameter can be used for setting whether the outputs created by printf() are made to a
file or to the output window.
The following applies for the output to a file: The file is called OnprintfX.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 Onprintf0. After file Onprintf10, it begins with Onprintf 0 again.
After activation, it is also started with Onprintf 0 the first time the function is called.
OnDiagnose
When the diagnosis is switched on, all trace information for the respective level can be routed
to a file.
The following applies for the output to a file: The file is called OnDiagnoseX.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 OnDiagnose0. After file OnDiagnose10, it begins with
OnDiagnose0 again. After activation, it is also started with OnDiagnose0 the first time the
function is called.
OnProfile
This parameter is used for defining whether the diagnostics information delivered with
OnProfile will be output in a file or the application window.
The following applies for the output to a file: The file is called OnDiagnoseX.txt and is located
in the installation directory:
● ..\Siemens\WinCC\Diagnose
WinCC: General information and installation
System Manual, 02/2017, A5E40840020-AA
WinCC diagnosis
6.3 ApDiag Menu Commands
171