H.J.

Hello Kokki,

you can use the system functions "ActivateScreen" (by screen name) or "ActivateScreenByNumber" (by screen number obviously - it's to be found in the general properties of the screen).

You can connect that to an event of an internal HMI tag or PLC tag (in "HMI tags").
Choose for example "On exceeding" (of 0 in case if an Integer that gets set as 1).
If you use Boolean tags you might want to not have the screen opened when the Boolean tag is reset to 0.

There would be a simple VBS solution, but basic panels can't do that. So you might need extra tags and some little logic in the PLC to set if the Boolean tag is set to 1 and the tag with the screen number is on the right value. Just feed the screen number to the screen number PLC tag (Integer or similar) on the event "Loaded" on each screen.

Short:

You open the first screen (number 1). ScreenNumber is set to 1.

If TagSensor=1 and ScreenNumber=Y then "ActivateScreen" number Z.

Now ScreenNumber is set to 2, and so on...

 Hi,

I want to learn Script writing of Siemens HMI.  Could you please suggest any document for beginners.

Thanks...

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Split from Change from screen by means of an Input Tag.