A logger point is implemented in the function block for the Application Logger. After calling up this method successfully, the function block sends messages to the Application Logger via this logger point. This method is identical to the call-up of the RegisterLoggerPoint method at APL.FB_LoggerPoint.
After registration:
The function block automatically sends messages to the Application Logger.
The APL.ET_LogLevel enumeration (logger level) describes the type and importance of a message.
Depending on the respective function block, various information is forwarded within a message (e.g. a list of diagnostic outputs).
|
Input |
Data type |
Description |
|---|---|---|
|
i_ifParent |
The parent logger point under which the logger point of the function block is to be registered. The global variable G_ifApplicationLogger is also a logger point. |
|
|
i_sName |
STRING[80] |
The name of the function block logger point that shall be displayed in the Application Logger has to be defined here. |
|
Output |
Data type |
Description |
|---|---|---|
|
q_etDiag |
General, library-independent statement on the diagnostic. A value unequal to ET_Diag.Ok corresponds to an error message. |
|
|
q_etDiagExt |
POU-specific output on the diagnostic. q_etDiag = ET_Diag.Ok -> Status message q_etDiag <> ET_Diag.Ok -> Error message |
|
q_etDiag |
q_etDiagExt |
Enumeration value |
Description |
|---|---|---|---|
|
OK |
Ok |
0 |
Ok |
|
InputParameterInvalid |
MaxNumberOfLoggerPointsExeeded |
161 |
The maximum number of logger points was exceeded. |
|
InputParameterInvalid |
ParentInvalid |
159 |
The parent object is invalid. |
|
InputParameterInvalid |
ParentNotRegistered |
160 |
The parent object is not registered. |
|
UnexpectedProgramBehavior |
UnexpectedDiagExt |
147 |
An unexpected detected error occurred during the execution. |
|
Enumeration name: |
MaxNumberOfLoggerPointsExeeded |
|
Enumeration value: |
161 |
|
Description: |
The maximum number of logger points was exceeded. |
|
Issue |
Cause |
Solution |
|---|---|---|
|
- |
It was attempted to register more than APL.Gc_udiMaxNumberOfLoggerPoints logger points in the Application Logger. |
The global parameter APL.Gc_udiMaxNumberOfLoggerPoints must be increased. |
|
Enumeration name: |
Ok |
|
Enumeration value: |
0 |
|
Description: |
Ok |
The logger point was successfully registered in the Application Logger.
|
Enumeration name: |
ParentInvalid |
|
Enumeration value: |
159 |
|
Description: |
The parent object is invalid. |
|
Issue |
Cause |
Solution |
|---|---|---|
|
- |
An invalid object has been transferred at the input i_ifParent. |
At the input i_ifParent an object of the type APL.FB_LoggerPoint or APL.IF_ApplicationLogger has to be transferred. |
|
Enumeration name: |
ParentNotRegistered |
|
Enumeration value: |
160 |
|
Description: |
The parent object is not registered. |
|
Issue |
Cause |
Solution |
|---|---|---|
|
- |
The logger points transferred at the input i_ifParent is not registered in the Application Logger. |
The logger point transferred at the input i_ifParent must be registered in the application logger first. |