WinCC Advanced V13 SP1 – Simple Sample: Discrete Alarm – alarm alerts (horn, warning lamp) controlled by PLC

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:

Many applications demands that an alarm would be signalized by means horn or a warning lamp activated by a controller.

In this sample project, an alarm (“Alarm 0 active”) could be monitored trigger and acknowledgment tags in the PLC and with the help of a FB, controls alarm alerts (horn, warning lamp).

Principle:

1 – Alarms are defined from Word / DWord variables (trigger variable)

2 – Non used bits of these trigger variable can be set as acknowledge functions (i.e. setting this bits, the PLC sends a command to acknowledge the Alarm in HMI). (Alarm properties → acknowledgment → PLC → Tag/bit)

3 – At same way, other Word / DWord variables bit could be used to send a feedback to the PLC that a alarm would be acknowledged (Alarm properties → acknowledgment → HMI → Tag/bit)

Requirements:

WinCC Advanced V13 SP1.

Project with a minimum configuration (stop - See references “WinCC Advanced V13 SP1 – Simple Sample: Discrete Alarm PLC Acknowledgment” https://support.industry.siemens.com/tf/br/en/posts/135059/ ).

Configuration main steps:

In HMI alarms are configured with the respective acknowledgment / trigger tags.

To simplify the controller program, in this example trigger and acknowledgment tags uses the rleative same bits each alarms.

In the controller, a FB monitors these words tags and generate a signal for alarm alerts (horn, warning lamp).

Here, the alarm acknowledgment quits the horn.

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 attached to a zip archive (data.zip).