Automation of production processes. Methods of discrete process modeling and control programming.

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ISBN 83-204-3177-8, 978-83-204-3509-2
Author: Mikulczyński Tadeusz
Publisher: WNT

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About the book

The book presents methods of modeling discrete production processes and programming languages (SFC, LD, FBD, IŁ, ST) in accordance with the IEC 1131-3: 1993 standard. The methods of Grafpol, Grafcet and SFC are discussed, giving for each of them: the algorithm of process modeling, rules for creating the control algorithm and a simple example. Then, the standard programming languages of logic controllers are described: LD, FBD, IŁ, ST, knowledge of which is necessary in the automation of industrial processes. There are also examples of modeling of PLC programming processes for the control of pneumatic drive units.

The book is a compendium of knowledge in the field of practical design of control procedures and PLC programming in typical solutions of industrial automation control systems.

It is intended for students of mechanical and electrical faculties of technical universities, as well as for engineers involved in the automation of discrete processes.

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Table of Contents

Preface

1. Introduction

2. Grafpol method

2.1. Process algorithm. Networks: operational and Grafpol
2.1.1. Operating network
2.1.2. Grafpol GP network
2.1.3. Modeling: operational networks and Grafpol GP discrete algorithm procedures
production processes
2.2. Control algorithm. Grafpol GS network
2.2.1. Modeling with the Grafpol GS network of control algorithms procedures
2.3. Summary

3. Grafcet method

3.1. Process algorithm
3.1.1. Grafcet network modeling rules of the process algorithm
3.2. Control algorithm
3.2.1. Grafcet network modeling rules routines for control algorithms
3.3. Summary

4. SFC method

4.1. Process algorithm
4.1.1. SFC network modeling rules for algorithms of processes
4.2. Control algorithm
4.2.1. Rules for modeling SFC network procedures of control algorithms
4.3. Summary

5. Standard IEC 1131-3 Programming Languages - Polish equivalent

standards PN-EN 61131-3: 1998

5.1. Elements of PLC programming languages
5.2. Common elements of PLC programming languages - data and variables
5.2.1. Declaration of data
5.2.2. Data types. Initial values
5.2.3. Types of variables. Declaration of variables
5.2.4. Organizational units (elements) of the software - functions, functional blocks and
programs
5.2.5. Sequential functional block SFC
5.2.6. Rules for the implementation of control algorithms for discrete processes
manufacturing
5.3. PLC programming languages
5.3.1. The ladder logic language LD
5.3.2. The language of FBD block diagrams
5.3.3. The language of the JL instruction list
5.3.4. Structured text language ST

6. Examples of process modeling and PLC programming

6.1. Modeling and programming work of one pneumatic drive unit
6.2. Modeling and programming of work of two pneumatic drive units
6.3. Modeling and programming of work of three pneumatic drive units
6.4. Modeling and programming of concurrent procedures

7. Synthesis with the Grafpol method of sequential control algorithms

7.1. Rules for realizing memory and determining functions of output and elementary variables
memory cells
7.2. Application of the Grafpol method for the synthesis of PLC application programs

Literature
Index