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Hello,
Basically, WinCC Calendar/Scheduler option can be used in the Runtime with limitations. When you put CalendarControl on the graphic page, user can only select already predefined actions and put them into the schedule, with the desired trigger time and date. But, the actions themselves cannot be changed in the Runtime, they can be changed only in the Configuration mode.
I think this is huge, I mean HUGE drawback of the whole Calendar/Scheduler option!!
Is there any back-door way to change Calendar actions in the Runtime?
Hello, You're right to identify the limitation – WinCC Calendar/Scheduler actions are fixed post-configuration and cannot be *directly* modified at runtime. There isn't a supported "backdoor" to alter actions themselves while running. However, you can achieve a similar effect using these workarounds: * **Indirect Action Triggering:** Use the Calendar to trigger *variables* which then control the actual actions via scripting or logic. Changing these variables at runtime effectively alters behavior. * **Dynamic Graphic Pages:** Call different graphic pages (containing different actions) based on Calendar selections. * **External Scheduling:** Integrate WinCC with an external scheduling system that *does* allow runtime modifications, and have WinCC react to changes from that system. These options offer flexibility but require additional development effort. For detailed guidance and examples, please refer to these SiePortal resources: * [WinCC Help - Calendar Control](https://support.industry.siemens.com/cs/ww/en/view/109756991) * [WinCC FAQ - Runtime Changes](https://support.industry.siemens.com/cs/ww/en/view/22485381) Siemens Self Support.
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