Front Cover; Programmable Controllers: An Engineer's Guide; Copyright Page; Table of Contents; Preface; Chapter1. Computers and industrial control; 1.1 Introduction; 1.2 Types of control strategies; 1.3 Enter the computer; 1.4 Input/output connections; 1.5 Remote I/O; 1.6 The advantages of PLC control; Chapter 2.Programming techniques; 2.1 Introduction; 2.2 The program scan; 2.3 Identification of input/output and bit addresses; 2.4 Programming methods; 2.5 Bit storage; 2.6 Timers; 2.7 Counters; 2.8 Numerical applications; 2.9 Combinational and event-driven logic; Chapter 3.Programming style

3.1 Introduction3.2 Software engineering; 3.3 Top-down design; 3.4 Program structure in various PLCs; 3.5 Housekeeping and good software practice; Chapter 4.Analog signals, closed loop control and intelligent modules; 4.1 Introduction; 4.2 Common analog signals; 4.3 Signals and standards; 4.4 Analog interfacing; 4.5 Analog output signals; 4.6 Analog-related program functions; 4.7 Closed loop control; 4.8 Specialist control processors; 4.9 Intelligent modules; 4.10 Installation notes; Chapter 5.Distributed systems; 5.1 Parallel and serial communications; 5.2 Serial standards; 5.3 Area networks

5.4 The ISO/OSI Model5.5 Proprietary systems; 5.6 Safety and practical considerations; 5.7 Fibre optics; Chapter 6.The man-machine interface; 6.1 Introduction; 6.2 Simple digital controls and indicators; 6.3 Numerical outputs and inputs; 6.4 Alarm annunciation; 6.5 Analog indication; 6.6 Computer graphics; 6.7 Message displays; Chapter 7.Industrial control with conventional computers; 7.1 Introduction; 7.2 Bus-based machines; 7.3 Programming for real time control; Chapter 8.Practical aspects; 8.1 Introduction; 8.2 Safety; 8.3 Design criteria; 8.4 Constructional notes

8.5 Maintenance and fault findingAppendix Number systems; Index