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Operator '__CURRENTTASK'dl-permalink__symbolPermalink

This operator is an extension of the IEC 61131-3 standard.

In runtime mode, the operator provides information about the IEC task that is currently running.

The operator is supported only on target systems in which the target system setting ‎memory-layout\max-stack-size‎ is set to a value > 0.

The operator allows for access to a structure with two variables:

  • ‎TaskIndex‎: Zero-based index that identifies the task

  • ‎pTaskInfo‎: Detailed information about the currently running task. It can be assigned to a ‎POINTER TO Task_Info2‎ from the library ‎CmpIecTask‎.

The operator cannot be used in the declaration of a POU. This would result in an error message. If the current task cannot be determined, then the ‎TaskIndex -1‎ and the ‎pTaskInfo‎ are zero.

Example

//Declaration
VAR
	idx : INT;
	pInfo : POINTER TO Task_Info2;
END_VAR

//Program code

idx := __CURRENTTASK.TaskIndex;
pInfo := __CURRENTTASK.pTaskInfo;