“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:

HMI have already an efficient system alarm diagnose that inform the communication status to the users.

In some applications, however, it is necessary to represent the communication status in another form (like a icon on the screen).

There are many ways to get the controller communication status.

In this simple sample example, we show two ways:

1 – Via simple life bit (that flashes on the picture).

2 – Via controller logic + HMI script for getting a boolean indication of communication ok / not ok.

Requirements:

WinCC Comfort V13 SP1.

Configuration main steps:

1 – Via simple life bit (that flashes on the picture).

• Set in the PLC a clock memory

• Use the 0.5Hz signal on HMI (e.g. drag & drop for digital indication – or use text / graphic list, etc.)

2 – Via controller logic + HMI script for getting a boolean indication of communication OK / not OK.

• In PLC build a logic so that a variable changes continuously

• Define the PLC variable in HMI (e.g by drag and drop - “Tag_1”).

• Set variable the properties → Settings → Acquisition Mode → Cyclick continuous / Acquisition cycle = 1s

• Create HMI internal Tags, for monitoring HMI_Tag_1 Dint) and signalling (HMI_Tag_2 Bool)

• In HMI build a script that check if the PLC variables is changing like follow:

Sub VBFunction_1()

'Tip:

SmartTags("HMI_Tag_2") = (SmartTags("HMI_Tag_1") <> SmartTags("Tag_1"))

SmartTags("HMI_Tag_1") = SmartTags("Tag_1")

End Sub

• Call the HMI script in the schedule on each1 minute.

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:

Due a size/ format restrictions, the project was attached as Project.zip.