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Undoubtedly the single greatest source of error in group test administration is:
Instruction Address
A specific location in memory where an instruction or operation code is stored for CPU retrieval and execution.
PLC Emergency Stop Circuits
Safety features in Programmable Logic Controllers designed to halt operations immediately to prevent accidents or equipment damage.
MCR Instruction
Master Control Reset Instruction, used in programming PLCs to control the execution of blocks of logic.
De-energize MCR Coil
The process of removing electrical power from a Master Control Relay (MCR) coil, which stops the current path in the control circuit.
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