EBK ACTIVITIES MANUAL FOR PROGRAMMABLE
EBK ACTIVITIES MANUAL FOR PROGRAMMABLE
5th Edition
ISBN: 8220102795983
Author: Petruzella
Publisher: YUZU
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Chapter 1, Problem 14RQ

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Changing the process control operation in a relay-based system::

  • • Instead of using a relay based system, the process control operation is more reliable and easy to process using a PLC based system.
  • • In a relay system, whenever there is a change in the input field, there must be a change in the rewiring of input devices,
  • • This input device may be temperature switches, pressure switches, or manual push buttons...

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