Book Image

PLC and HMI Development with Siemens TIA Portal

By : Liam Bee
Book Image

PLC and HMI Development with Siemens TIA Portal

By: Liam Bee

Overview of this book

With automation requirements on the rise, Siemens’ TIA Portal development environment is almost a necessity for any automation engineer. The Totally Integrated Automation (TIA) environment helps seamlessly integrate all things automation, from PLC hardware and software design to HMI development. This book helps you understand the tools available in the TIA toolbox and shows you how to write code effectively. The book begins by introducing you to the TIA environment, covering the layout and tools available. Once you’ve got to grips with the environment, you’ll find out how to create hardware to write programs against, including adding IO modules and assigning memory for input and output. Next, you'll develop logic in all of the languages that TIA Portal offers, such as Ladder, Function Block Diagram, and Structured Text (SCL) (note that Statement List is not covered as a deprecated language), as well as the newest language, Cause and Effect (CEM). You’ll also discover how to store standard code in libraries, creating a version control system that is easy to manage and aids standard design. Finally, following the PLC design chapters, you’ll learn how to develop HMI applications in TIA Portal’s latest unified hardware. By the end of the book, you'll be well equipped to use all of the features that TIA Portal V17 offers.
Table of Contents (21 chapters)
1
Section 1 – The TIA Portal – Project Environment
5
Section 2 – TIA Portal – Languages, Structures, and Configurations
11
Section 3 – TIA Portal – HMI Development
16
Section 4 – TIA Portal – Deployment and Best Practices

Using scripts

TIA Portal's Unified system can make use of JavaScript against screen object properties. Historically, Siemens used Visual Basic Script (VBS) for dynamization in an HMI environment; however, Unified has moved to a more advanced and commonplace JavaScript language.

Scripting can be used by setting Dynamization to Script, as illustrated in the following screenshot:

Figure 10.17 – Visibility property set to Script for Dynamization, with the script shown to the right

When Script is used as the Dynamization type, a script file is displayed to the right of the window.

The script file can be used to perform more complex evaluations of data before setting the associated properties. This allows greater flexibility and customization than other dynamization options.

Construction of script files

Scripts are semi-constructed when the Script option is selected from the Dynamization list. TIA Portal will provide the necessary function...