Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual page 239

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239
Sequencer Instructions
Sequencer instructions are used to control automatic assembly machines
or processes that have a consistent and repeatable operation. They are
typically time based or event driven.
Instruction
SQC - Sequencer Compare
SQO - Sequencer Output
SQL - Sequencer Load
Use the sequencer compare instruction to detect when a step is complete;
use the sequencer output instruction to set output conditions for each
step. Use the sequencer load instruction to load data into the sequencer
file.
The primary advantage of sequencer instructions is to conserve program
memory. These instructions monitor and control 16 (word) or 32 (long
word) discrete outputs at a time in a single rung.
You can use bit integer or double integer files with sequencer
instructions.
Used To:
Compare 16-bit data with stored data
Transfer 16-bit data to word addresses
Load 16-bit data into a file
Publication 1763-RM001C-EN-P - October 2009
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