11010-MEP

🔹 Module 1: Introduction to PLC Systems (6 Hours)

1.1 What is a PLC?

• Definition, evolution from relay-based systems

• Role in automation and control systems

1.2 Hardware Architecture

• CPU, memory, I/O modules, communication ports

• Power supply and wiring basics

1.3 PLC Types and Selection Criteria

• Siemens, Allen-Bradley, Schneider, Delta

• Compact vs. Modular PLCs

• Industrial application scenarios

1.4 Working Principle

• The Scan Cycle: Input scan, program execution, output update

• Real-time processing and cyclic nature