Asked by Luqman Waheeduddin on May 04, 2024
Verified
Power to the PLC input and output devices are usually controlled by means of a hardwired Master Control Relay circuit.
Master Control Relay
A relay used to control the operation of multiple circuits or functions in a control system, often serving as a main safety or operating control.
Hardwired
The physical interconnection of electric and electronic components with wire.
- Understand the importance and application of Master Control Relay (MCR) circuits in PLC systems.
Verified Answer
ZK
Zybrea KnightMay 07, 2024
Final Answer :
True
Explanation :
A Master Control Relay circuit is commonly used to power and control input and output devices in a PLC system.
Learning Objectives
- Understand the importance and application of Master Control Relay (MCR) circuits in PLC systems.
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