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

Hierarchy in TIA Portal

TIA Portal works by using a parent/child hierarchy, where parent objects call child objects that they depend on to function correctly. The following is an example of a parent/child hierarchy:

Figure 2.9 – Example of a parent/child hierarchy within the example project

The preceding diagram shows how the Pole_Lights function block is dependent on Pole_Light_Manager. If Pole_Light_Manager is modified, then the Pole_Lights function block would also need to be modified to utilize the new version. This is because the interface of the Pole_Lights function block would need to change its size to accommodate any new data that's added to Pole_Light_Manager.

This example also shows that input mapping and output mapping do not have any dependents, so they do not rely on any other function blocks or functions to process their logic.

Call structure

In TIA Portal, a view window can be opened that displays the call structure. This...