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How to activate screen from a tag

4/27/2009 5:44 PM	Rate (0)
Anthony Perrone Regular Member Joined: 3/26/2009 Last visit: 4/24/2025 Posts: 14 Rating: (0)	Hey guys I have a screen that I want to activate when I get the signal from the tag. I went to the properties of the tag and set the event change value to activate my screen. Am I missing something else I have to set? The tag is just a regular bool bit. I have it working on an old file I had but I deleted it by accident. I cant get it to work again.

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This contribution was helpful to 1 thankful Users Pawel Mis

4/27/2009 6:51 PM	Rate (0)
Raghupathy Posts: 37 Rating: (2)	What you have tried was correct. It will work if you configured with the exact tag. One more thing i wanna mention is, if you are using "Change Value" of a tag then the screen will be activated during the rise as well as falling edge of the tag value (i.e. 0 to 1 transistion & 1 to 0 transition) to overcome this effect you have to keep the acqition cycle time of the WinCC Flexible tag greater than PLC cycle time (Say 2s). you can try PLC jobs also to do the same perfectly. Hope this will help you
Raghupathy Posts: 37 Rating: (2)
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4/28/2009 8:59 AM	Rate (0)
Wizard Diamond Expert Joined: 4/24/2006 Last visit: 12/24/2025 Posts: 9097 Rating: (1202)	Dear AP26, Perhaps the following links, might help you: how can you make a screen selection on a windows based operator panel by entering a screen number? how can you make a screen selection on a windows based operator panel via the controller without using a controller job? Best regards, Wizard

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9/1/2016 3:09 AM	Rate (0)
le anh Posts: 13 Rating: (0)	i have a problem with active screen use Tag. I select Tag and set > Change value > active screen. but i doesn't work :(
le anh Posts: 13 Rating: (0)
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4/11/2017 3:03 PM	Rate (0)
Joel288 Regular Member Joined: 6/17/2016 Last visit: 11/19/2024 Posts: 5 Rating: (0)	Hello, the manual in how can you make a screen selection on a windows based operator panel via the controller without using a controller job? work perfect actually. you need just hold the INT value of page in PLC some time to be sure that HMI catch it. And than you can put there 0, it dont change current page in HMI and you can be sure that HMI will show the page next time again. thank you.

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2/27/2023 5:47 PM	Rate (0)
AutoGen_4364786 Member Joined: 11/2/2022 Last visit: 3/7/2025 Posts: 1 Rating: (0)	Hello!! If you are using the "Value change" event just don´t forget to set the acquisition in "cyclic continuous" mode for the tag that you choose. Regards

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