Contents

1. Introduction to Control System

1. Introduction

2. Systems

2.1 Control System

2.2 Classification of Control System

3. Servo System

3.1 Block Diagram

3.2 Classification of Servo System

4. Laplace Transform

4.1 Transfer Function

4.2 Transfer Functions of RC and RLC Electrical Circuit

5. Order of a System

6. Block Diagram Reduction Technique

6.1 Need of Reduction Technique

6.2 Block Diagram Reduction Rules

2. Time Response Analysis

1. Introduction

2. Time Domain Analysis

2.1 Time Response

2.2 Classification of Time Response

3. Standard Test Inputs

4. Pole’s and Zero’s

5. First Order Control System

6. Second Order Control System

7. Time Response Specification

8. Steady State Analysis

8.1 Type of System

8.2 Expression for Error Constant/Error Coefficient and Steady State Error

3. Stability

1. Introduction

2. Analysis of Control Systems

3. Root Location of S-Plane for Stable and Unstable Systems

4. Routh’s-Hurwitz (R-H) Criterion

5. Problems on Special Case

4. Control Actions

1. Introduction

2. Process Control System

2.1 Block Diagram

3. Control Actions

3.1 Discontinuous Control Action Mode

3.2 Continuous Control Action Mode

3.3 Composite Controllers

5. PLC Fundamentals

1. Introduction

2. Evolution of PLC in Automation

3. Need and Benefits of PLC in Automation

3.1 Need of PLC in Automation

3.2 Benefits of PLC in Automation

4. Block Diagram of PLC

4.1 Scanning Cycle

4.2 Speed of Execution

4.3 Power Supply Function and Block Diagram

4.4 Memory Section Function

4.5 Organisation of Memory

4.6 Input Module

4.7 Output Module

4.8 Programming Device

4.9 Fixed and Modular PLC’s

4.10 Fixed PLC

4.11 Modular PLC

6. PLC Hardware and Programming

1. Introduction

2. Discrete Module

2.1 Discrete Input Module

3. Discrete Output Module

4. Analog Modules

4.1 Analog Input Module

4.2 Analog Output Modules

5. I/O Addressing of PLC

5.1 PLC Instruction Set

5.2 PLC Programming Examples Using Ladder Programming Language