In Vijeo Designer, can you control changing screens/panels from the PLC program?
Issue:
In Vijeo Designer, can you control changing screens/panels from the PLC program?
Product Line:
Vijeo Designer
Resolution:
Yes this could be done using the system variable _curPanelID. Select the system variable, from the properties inspector there are two options: "Read from Variable" to change the panel and "write To Variable" will be feedback.
To show all the System Variables, open the Variable Editor screen and click the button on the top toolbar that looks like a Magnifying Glass on top of a sheet of paper.
When that button is toggled ON, the Variable Editor will display all the System Variables. System Variables start with the underscore character as prefix. They are always there by default.
In the Variable Editor,
1. Select the "_CurPanelID" variable from the list
2a) Tick the checkbox next to "Read From Variable"
2b) Assign the desired PLC variable to the "Read From Variable" Property in the Property Inspector
[For HMIs in EcoStruxure Machine Expert]
For HMIs in EcoStruxure Machine Expert (or SoMachine), this will not work due to the "_SoM.Application.<POU/GVL/Namespace>.<TagName>" tag naming convention.
In order to get this to work, you must follow this example below.
Example:
The tag from the PLC to control the HMI is "ValueFromPLC":
The Imported External tag is (in the blue box) below: "_SoM.HMISCUxB5.Application.SR_MyPOU.ValueFromPLC"
You will need to create a new Internal UINT tag (in the green box): "InternalTagToAssignPanelID"
Create a Global Action with Conditional Trigger Type to trigger from the PLC variable On Data Change:
Use a Word Operation to Set the Internal tag to get the value from the External Tag. Click [Add >], then [Finish]
Go to the Variables node, select "_CurPanelID", and map the "Read From Variable" field to the tag: "InternalTagToAssignPanelID"
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