Master Control Reset (Mcr); Relay Ladder - Allen-Bradley Logix5000 Reference Manual

1756 controllogix, 1768 compactlogix, 1769 compactlogix, 1789 softlogix, 1794 flexlogix, powerflex 700s with drivelogix
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Program Control Instructions (JMP, LBL, JSR, RET, SBR, JXR, TND, MCR, UID, UIE, AFI, NOP, EOT, SFP, SFR, EVENT)
Chapter 11

Master Control Reset (MCR)

The MCR instruction, used in pairs, creates a program zone that can disable all
rungs within the MCR instructions.
Operands:

Relay Ladder

None
Rockwell Automation Publication 1756-RM003N-EN-P - October 2011
467

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