Master Control Reset
The MCR block implements the
MCR instruction. The block
simulates a master control relay that can selectively disable a section of rungs.
EnableIn— Enable Input
Controls the execution of the block. EnableIn reflects the rung state preceding the block. If the rung state preceding the block is false, EnableIn is false, the block does not execute and the outputs are not updated.
EnableOut— Enable Output
When the block executes, it automatically sets the EnableOut to false. This disables all the subsequent blocks on the rung.