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WinCC scripts & tags & actions

Created by: FlorinR at: 3/2/2006 11:47 AM (4 Replies)

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3/2/2006 11:47 AM	Rate (0)
FlorinR Posts: 6 Rating: (0)	I have the next scenarion ... An action made in C ... 3 tags (T1, T2, T3) which are set to trigger the action made in C How can I find from the action (inside - C script) which tag from T1, T2, T3 has trigerred the action? Thanks
FlorinR Posts: 6 Rating: (0)
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3/2/2006 12:09 PM	Rate (0)
Ikkezelf Posts: 1084 Rating: (72)	As far as my knowledge goes this is not possible. with regards, Ikkezelf
Ikkezelf Posts: 1084 Rating: (72)
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3/2/2006 5:05 PM	Rate (0)
ranr_mids Bronze Member Joined: 12/5/2005 Last visit: 8/9/2021 Posts: 289 Rating: (19)	Hi. Presumably, it is one of the three tags changing that triggers the action. You could set up an internal tag for each 'real' tag, which are read at the start of the script and compared with the real tags. This would tell you which one 'changed'. At the end of the script, you set the internal tags to the values in the real tags. Just an idea, it may not even work.

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3/6/2006 3:04 PM	Rate (0)
Jaapie Gold Member Joined: 1/17/2006 Last visit: 10/27/2023 Posts: 799 Rating: (63)	It will work. That is what programming is all about Keep it Simple ;-)

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3/6/2006 3:49 PM	Rate (0)
Ikkezelf Posts: 1084 Rating: (72)	But if you only look at the values it could go "wrong". The script can be triggered with a quality change of the tag aswell. You can also try to go around that, but then the question resides if the effort is worth it. You have to decide for yourself. Still as far as I know, there is no variable or something like that that is able to tell you which tag triggered the action. with regards, ikkezelf
Ikkezelf Posts: 1084 Rating: (72)
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