PLC emergency stop circuits should be:
A)hardwired outside the controller program.
B)programmed as part of the master control reset instruction.
C)programmed as part of the zone control last state instruction.
D)programmed as an immediate input instruction.

Question

Quizplus · Accepted Answer

PLC emergency stop circuits should be hardwired outside the controller program to ensure that they can halt the machine or process quickly and safely in emergency situations without being affected by any potential programming errors or glitches in the system.

PLC Emergency Stop Circuits Should Be