When programming an MCR instruction to control a fenced zone,an MCR rung with no conditional inputs is placed at the beginning of the zone and an MCR rung with conditional inputs is placed at the end of the zone.

Question

Quizplus · Accepted Answer

In an MCR (Master Control Relay) instruction, the MCR rung with conditional inputs is placed at the beginning of the zone to control the execution of the rungs within the zone, and the MCR rung without conditional inputs is placed at the end to mark the end of the zone.

When Programming an MCR Instruction to Control a Fenced Zone,an