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dekor

Counting on WinCC Flexible

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Dear friends, I intend to count how many times a binary tag from PLC is changing and to display counted value on WinCCFlexible runtime screen but without creating the counter in PLC program. Is it possible in WinCC Flexible? dekor.

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WinCC is for visualization not for logic.
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Hi, HMI sure ain't recommended for computation, though, you still can use a VBscript for this kind of purpose if you don't consider your counter as critical for your system. Efficiency of your counter will depend on your net speed, the frequency of your bit's blink and the time it's held on. Most HMI are quite low, and PLCs have higher priorities than HMI com management, might even be the least of their concern (whenever they have some spare time). On my side, I sure wouldn't use this kind of trick if it took to go under 500ms at the very lowest for either frequency or signal duration. From my own experience, 2 seconds signals can be considered as reliable. Just to say it depends on what you wanna count. Regards.
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