How can add 1 second trigger?

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Split from Trigger wincc tia poral.

Hi,

I would use a timer in the PLC code and let it set a (trigger) tag. You can use the change of the value of this (Trigger) tag to call you script.

Open the HMI table. Select your PLC (Trigger) tag. Go to "Properties > Events > Value Change". Add your VB script. Use the script to choose how you want to react to a positive /negative edge. (If 'TriggerTag' Then [...] Else [...] Endif)

Use the timer in the PLC to set the Duration/waiting time.

Don't build timers/waiting loops in your VB script, because while a script is busy it blocks other functions and scripts. (Or at least only for shorter periods than a second.)

About the Scheduled tasks: you can't add self-defined times/Triggers.