Overview Of Interlock Instructions - Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual

Sysmac cs/cj/one nsj series programmable controllers

Table of Contents

Sequence Control Instructions

Overview of Interlock Instructions

Interlock Instructions

Differences between

Interlocks and Multiple

NOP(000) can only be used with mnemonic displays, not with ladder pro-

The following instruction combinations can be used to interlock outputs in a

program section.

• INTERLOCK and INTERLOCK CLEAR (IL(002) and IL(003))

• MULTI-INTERLOCK DIFFERENTIATION HOLD and MULTI-INTERLOCK

CLEAR (MILH(517) and MILC(519))*

Note MILH(517) holds the status of the Differentiation Flag, so differentiat-

ed instructions that were interlocked are executed after the interlock

• MULTI-INTERLOCK DIFFERENTIATION RELEASE and MULTI-INTER-

LOCK CLEAR (MILR(518) and MILC(519))*

Note MILR(518) does not hold the status of the Differentiation Flag, so dif-

ferentiated instructions that were interlocked are not executed after

the interlock is cleared.

* These instructions are supported only by CS/CJ-series CPU Unit Ver. 2.0

Regular interlocks (IL(002) and IL(003)) cannot be nested, but multiple inter-

locks (MILH(517), MILR(518), and MILC(519)) can be nested. Ladder pro-

gramming can be simplified by nesting multiple interlocks, as shown in the

following diagram.

Interlocks with MILH and MILC

Interlocks with IL and ILC

Show Quick Links

Table of Contents