PLCs and SCADA Systems - afternoon course

THE WORKSHOP

The objective of this workshop is to help you troubleshoot, identify, prevent and fix common PLC and SCADA problems. The emphasis is on practical hard hitting information that goes beyond typical theory, focusing unerringly on providing you with the necessary skills to solve your problems whether it is a PLC, SCADA system, or indeed communications system linking the two together.

The automation system on your plant underpins your entire operation. It is thus critical that you have the knowledge and tools to quickly identify and fix problems as they occur to ensure you have a safe, secure and productive system. No compromise is obviously possible here. This workshop distils all the tips and tricks learnt over many years.

CONTENT SUMMARY

INTRODUCTION TO PLCs AND SCADA SYSTEMS

  • PLC block diagram of components
  • PLC processor module and memory organisation
  • PLC input/output modules
  • SCADA hardware
  • Good installation practice

FUNDAMENTALS OF PLC SOFTWARE

  • Boolean algebra
  • Instruction code
  • Graphical representation: functional logic diagrams and ladderlogic
  • Ladderlogic instruction set (coils and contacts/timers/counters)
  • Advanced instructions (program flow/arithmetic/data transfer and PID)
  • Good programming habits

SCADA SOFTWARE

  • Communication architectures
  • HMI interface
  • SCADA software blocks

BASICS OF TROUBLESHOOTING AND DIAGNOSING EQUIPMENT

  • Overall basic steps
  • Communications issues
  • Earthing, shielding and noise
  • Review of the key PLC troubleshooting issues
  • Visual inspection
  • Power supply test
  • Earthing and screening/shielding
  • Internal memory status against the field activity
  • Digital input/output status
  • Leaky inputs and outputs
  • Isolation problems

SCADA TROUBLESHOOTING ROAD MAP

  • Review of the key SCADA troubleshooting issues
  • SCADA system troubleshooting
  • PLC/SCADA interfacing problems

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