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PLC Failure - Why, What ... why?

WHY? (From most likely to least.)
#1 Factor: Environment
#2 Factor: Brand/Model
#3 Factor: Electrical Design supporting PLC
#4 Factor: PLC Management

WHAT? (From most likely to least.)
  • PLC output modules
  • PLC input modules
  • PLC communication modules
  • PLC power supply
  • PLC processor module

All Equipment Failure (physics)
  1. Mechanical devices are more likely to fail than electrical,
  2. Electro-mechanical devices are more likely to fail then solid-state devices,
  3. High current devices are more likely to fail than low current devices.

To read details about the above, see ...

#-Link-Snipped-#
This article answers the question... What are PLC controller failure rates? It also covers equipment failure rate from a PLC failure rate perspective (automation controller).

What's your war story?

  1. Factor: Environment
  2. Factor: Brand/Model
  3. Factor: Electrical Design supporting PLC
  4. Factor: #-Link-Snipped-#

  1. Factor: Environment
  2. Factor: Brand/Model
  3. Factor: Electrical Design supporting PLC
  4. Factor: #-Link-Snipped-#

Replies

  • Don Engineering Training
    Don Engineering Training
    Author #-Link-Snipped-#

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