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Changing screen styles (skin) possible?

Created by: Searchlight at: 1/26/2008 1:37 AM (8 Replies)

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1/26/2008 1:37 AM	Rate (0)
Searchlight Posts: 7 Rating: (0)	I really need some expert help here. I have a HMI application that is screen driven from the PLC logic. The logic is on many, many machines and we DO NOT want to change it. The HMI app which is created now in WinCC 2007 has about 10 different screens. The direction right now is that we want to change these screens and move stuff around, change colors and fonts, text, etc. No new data will be presented, they will only contain the same info as the old screens. But we want to keep the old screens as well, and simply be able to "toggle" the new screens on. But the PLC logic requires receiving the current screen number, so when I create new screens, the numbers sent will not be any good. So, is there a way to toggle the view of the screens? For example, I want two screens, both called FILL TUB. Both look completely different. The old fill tub screen is number 5 and the new one is number 15. I want to be able to toggle a button and start showing the new screen (15). But the logic will not undersand this new numberandwill cause issues. If I could just turn on a layer for the old screen, the turn it off and turn on a different layer, both under the same screen number, that would be fine. But how can I do this? Any suggestions out there? I need a way to be able to switch screen "skins" without changing the actual screen number OR find a way to "toggle" the screen numbers or something. ANY advice would be appreciated! Thanks, Greg
Searchlight Posts: 7 Rating: (0)
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1/28/2008 4:54 PM	Rate (0)
ZAK Gold Member Joined: 5/8/2006 Last visit: 10/16/2024 Posts: 1085 Rating: (78)	Hi, in WinCC flexible all screens have her own number. If you change the screen you change the number of the screen, too. I think the best way to solve your problem it is to use different layers. You should know that the layers only for WinCC flexible ES -not for the Runtime. The layers are veryhelpfulif you areinsert a lot of objects in a screen of your project. If you want to show or hide some objects in the Runtime you have to use the animations "visibility" of the objects. Bye

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1/29/2008 9:53 PM	Rate (0)
Floyd Posts: 130 Rating: (1)	Searchlight: How about a script to keep track of what "current" screen you are on. Something like this: When a screen loads, run a script that writes your "virtual" screen number to a tag "CurrentScreen as INTEGER" and use that tag in your PLC rather than the real screen number: Screen A --> Events --> Loaded ------ SetCurrentScreen_1 Screen B--> Events --> Loaded ------ SetCurrentScreen_2 and so on.... Screen Y (copy of screen A)--> Events --> Loaded ------ SetCurrentScreen_1 ScreenZ (copy of screen B)--> Events --> Loaded ------ SetCurrentScreen_2 Scripts Script SetCurrentScreen_1 SmartTags("CurrentScreen") = 1 Script SetCurrentScreen_2 SmartTags("CurrentScreen") = 2 and so on.... What do you think?
Floyd Posts: 130 Rating: (1)
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1/30/2008 10:50 AM	Rate (0)
ZAK Gold Member Joined: 5/8/2006 Last visit: 10/16/2024 Posts: 1085 Rating: (78)	Hi, if you use the area pointer "screen number" then that doesn't work. You can do that if you send the number of the screen via a simple tag. Bye

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1/30/2008 2:05 PM	Rate (0)
Searchlight Posts: 7 Rating: (0)	Thanks for ALL the replies so far, it is appreciated. Here is the problem, the PLC logic was created by a different group within my company and has been comonized among all our machines. They will NOT, in any way, allow changes to this logic. I need to find a way of doing this in WINCC, instead of the PLC logic. If I could only find a way to alter the screen numbers within WINCC based on toggling a button. For example, you press a button and a script runs that changes screen number 3 to screen number 300, until such time the button is presses again, which fires a script to return it back to 3. Is this possible?
Searchlight Posts: 7 Rating: (0)
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1/30/2008 5:19 PM	Rate (0)
Floyd Posts: 130 Rating: (1)	Searchlight: The above concept i posted should meet your needs w/o PLC code changes (though it's always possible i missed something simple). I can explain my idea further if needed.
Floyd Posts: 130 Rating: (1)
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1/30/2008 6:22 PM	Rate (0)
Searchlight Posts: 7 Rating: (0)	Yes, Floyd, please explain further. I have zero experience with scripts. FYI, more background: I have about 8 screens, number 1,3,4,5,100,200,210,300 that I need to change to duplicates at the toggling of a button. So, 1 becomes 800 3 becomes 801 4 becomes 802 5 becomes 803 100 becomes 804 200 becomes 805 210 becomes 806 300 becomes 807 When you press the button again, or a different button if needed, the screen numbers toggle back to original, i.e. 800 becomes 1 801 becomes 3 etc, etc... The entire reason why I want to do this is that my company wants to have two different sets of screens, both with nearly teh same info, but looking completely different in style. But again, the goto screen numbersare driven by the PLC logic which cannot be changed. So when you press a screen button, the PLC logic tells it to go to screen 200 or 210 or whatever. So the screen numbers need to be able to change in order for this to work. Does this make sense? :) TY
Searchlight Posts: 7 Rating: (0)
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1/30/2008 9:45 PM	Rate (0)
Floyd Posts: 130 Rating: (1)	Searchlight FYI, more background: I have about 8 screens, number 1,3,4,5,100,200,210,300 that I need to change to duplicates at the toggling of a button. So, 1 becomes 800 3 becomes 801 4 becomes 802 5 becomes 803 100 becomes 804 200 becomes 805 210 becomes 806 300 becomes 807 Ok, i had a bit of a different idea here. Your idea of a pushbutton that changes screeen mapping from "actual" to "mapped" could be done this way also. Adding to what i previously said: Create Tags "AlternateScreenFlag" as BOOL and "CurrentScreen" as INT. "AlternateScreenFlag" is your Toggle PB Script SetCurrentScreen_1 If SmartTags("AlternateScreenFlag") Then SmartTags("CurrentScreen") =800 Else SmartTags("CurrentScreen")=1 Script SetCurrentScreen_3 If SmartTags("AlternateScreenFlag") Then SmartTags("CurrentScreen") =801 Else SmartTags("CurrentScreen")=3 etc (1 script for each screen) (though these could be combined into a single script, but the script would be a bit more complicated. When the screen loads, just use the EVENT - LOADED to run the script associated with that screen to set theCurrentScreen to either "REAL" or "Alternate" based on the BOOL "AlternateScreenFlag". The only downside i can think of right now would be you would have to change a screen to after toggling your "Alternate" PB before the correct Screen would be sent ot the PLC. Does that help? This is only one way to do this, but until someone has a better idea, its the best i got.. If scripting is still unclear, (i come from doing a lot of Microsoft VBA programing), it might be worth looking for a bit of a tutorial or introduction. I don't have a good reference source for that. If you still are unclear, i can build out a little example project and you could use the simulator to play with it.
Floyd Posts: 130 Rating: (1)
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1/31/2008 10:50 AM	Rate (0)
ZAK Gold Member Joined: 5/8/2006 Last visit: 10/16/2024 Posts: 1085 Rating: (78)	Hi, how do you get the screen number in your project? -via area pointer -via screen name -> No. 14 in the following FAQ: http://support.automation.siemens.com/WW/view/de/26165877 If you know the number of the screen I would use only one skript. Code: : If SmartTags("CurrentScreen") = 801 then SmartTags("AlternateScreenFlag") =1 end If If SmartTags("CurrentScreen") = 802 then SmartTags("AlternateScreenFlag") =2 end If : : You read the current screen number and set the number of the alternative screen to the PLC. Bye

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