Yaskawa MP900 Series Ladder Programming Manual - Manual (Page 354)

5.11 C-language Control Instructions
5.11.2 C-language Task Control (TSK-CTRL)
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Instructions
5
( 3 ) Programming Example
In the following programming example, the CTASK1 C-language task is executed.
First the CTASK1 C-language task is loaded into the Controller.
Next, when the TSK1 execute command (MB000000) turns ON, the CTASK1 C-language task is executed by the
TSK-CTRL instruction.