Hello

If you use WinCC Comfort/Advanced then you can use only the fastest trigger 1min in scheduled tasks.

Here you should use a Tag trigger for your script (but be careful, use aquisition mode-> cyclic continous for the trigger Tag)

If you have WinCC Professional Runtime: -> here you can use cyclic triggers that are much faster. But be careful!! fast cyclic scripts you should not use! its always better to use event-driven triggers like tag triggers.

Bye Murof