WinCC Advanced V13 SP1 – Simple Sample: calling a script by a tag change

“Simple Samples” are small projects that demonstrate simple features. The target is give a quick overview about the theme and be used as start point for related discussions. Follow there are a short description and the configuration main steps.

Description:

By changing a value of a tag (HMI_Tag_1), a script will be called and increment the value of a second tag (HMI_Tag_2).

WinCC Advanced (and HMI e.g.) could call scripts by schedule. In some applications, however, the schedules options are not enough. In this case, it is possible to call a script by a tag change. It makes possible, for example, to call a script (indirectly) by a PLC command.

Requirements:

WinCC Advanced V13 SP1.

Project with a minimum configuration (stop button, tags, etc. ).

Configuration main steps:

• Create a Project

• Create a VB Script (“Script”, “VB Script”, “Add new VB Function”)

Configure the script as follow:

Sub VBFunction_1()

IncreaseTag "HMI_Tag_2", 1

End Sub

• Create two Integer tags (Project Tree → Show all tags-> <add new>, Name = HMI_Tag_1, Data Type = Int, <add new>, Name = HMI_Tag_2, Data Type = Int)

• Note: this sample program uses internal tags, for PLC tags, it is necessary to set the property “Acquisition mode” = “Cyclic Continous” (properties → settings).

• Attribute to HMI_Tag_1 changes the call of VBFunction_1 Script (HMI_Tag_1 properties, Events, Value Change, <Add Function>, VBFunction_1

• Open a screen

• Drag and drop HMI_Tag_1 and HMI_Tag_2 from Default Tag Table to the screen

References:

Manual

WinCC Professional V13.0

https://support.industry.siemens.com/cs/br/pt/view/92323076/en

Online helps system

WinCC Professional V13.0 SP1

https://support.industry.siemens.com/cs/br/pt/view/109096785/en

Application and tools

Demo projects for HMI operator panels under WinCC V13 (TIA Portal) for Basic Panels (2nd generation) and Comfort Panels

https://support.industry.siemens.com/cs/br/pt/view/96003274/en

FAQ

Which VBS information and VBS programming tools are there in WinCC (TIA Portal)?

https://support.industry.siemens.com/cs/br/pt/view/59885894/en

Tips and tricks for creating scripts in WinCC (TIA Portal)

https://support.industry.siemens.com/cs/br/pt/view/57132412/en

Project:

Project.zip