Programmable Logic Controllers (PLCs) & SCADA – An Introduction

Day 1

Chapter 1: Introductions

• General Introduction
• Chapter 2: PLC Hardware
• Central Processing Units.
• Digital Input / Output Modules.
• Analogue Input / Output Modules.
• Power Supplies.
• Communications Processors (CP).
• Profibus Modules.
• Remote / Point I/O.
• Ethernet Modules.
• Exercises.
• Chapter 3: Fundamentals of PLC Software
• Methods of Representation i.e. Ladder Logic (LAD), Statement List (STL), Structured Text (ST), and Flow Block Diagrams (FBD).
• Normally OPEN & CLOSED Contacts
• Create a user program
• AND, OR Logic Function.
• AND Before OR.
• OR Before AND.
• Contacts Normally OPEN & CLOSED.
• Motor Start/Stop Circuit
• Exercises
• Chapter 3: Projects.
• Setup a Threebay Horse Shed.
• Domestic Hot Water System for a house.

Day 2

Chapter 4: Timers

• Pulse Timer.
  On Delay Timer.
  Off Delay Timer.
• Explain the Timing diagrams.
  7 Day Weekly Timer.
  Exercises
• Enchance the Threebay Horse shed with Automatic features.
  Enchance the Domestic Hot Water System with Automatic Features.
  Pump Monitoring System.
• Chapter 5: SCADA / HMIs
• Setup communiucations between a PLC and a HMi over Ethernet.
• Assign both the PLC and the HMi with an IP Address.
• Generate the graphic for a Motor Start / Stop circuit using Function Keys from a HMi.
• Chapter 5: SCADA / HMIs
• Download both the graphics and the SCADA / HMi software and test it.
• Add additional features onto the graphics e.g. Motor Running Status (On / OFF)