Programmable logic controllers, known for short as PLCs, are an integral part of automation at the lower, middle and upper performance levels. Due to the ever increasing size and complexity of the hardware and software required in automation projects, the industry has had to develop faster, more capable and effective automation systems and to simplify handling for users. All the exercises in this book have been developed and tested using Siemens’ SIMATIC S7-300 PLC. The command set of this controller ranges from binary processing to 32-bit floating point arithmetic. The controller is programmed under the Windows XP operating system and it is assumed that users have an appropriate basic knowledge. All the procedures for programming the SIMATIC S7-300 are demonstrated exactly and are easy to understand for users. The topic builds up from “easy to hard” and is ideally suited for use in vocational and technical training colleges, etc. as well as for use on a teach-yourself basis.
Contents
+ Chapter 1: Introduction
The programmable logic controller (PLC) has the job of carrying out open-loop or closed-loop control of a machine or plant’s individual operations in accordance with a specified function cycle depending on encoder signals.
+ Chapter 2: Arrangement of a PLC
PLCs are mass-produced. Initially, they do not yet have a task. Manufacturers integrate all the components necessary for the control engineering such as the logic elements, latching/unlatching functions, times, counters, etc. and these components are linked to form a functioning controller by means of programming.
+ Chapter 3: Way of Functioning of a PLC
+ Chapter 4: Program Processing and Programming
+ Chapter 5: Logic operations
+ Chapter 6: Program Input
+ Chapter 7: Creating Momentary Impulses
+ Chapter 8: Timing Functions
+ Chapter 9: Clock Generators
+ Chapter 10: Counters
+ Chapter 11: Comparators
+ Chapter 12: Practical Examples with Simulators
+ Chapter 13: Sequence Control Systems
+ Chapter 14: Safety Regulations
If you are a student or someone who wants to learn about PLCs and wants to have this book, please leave your email address in the comment section of the article, I will send this book when i read.
