Allen-Bradley MicroLogix 1200 Reference Manual

1 Publication 1762-RM001C-EN-P
Chapter 15
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.
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.
Instruction Used To: Page
SQC - Sequencer Compare Compare 16-bit data with stored data 15-2
SQO - Sequencer Output Transfer 16-bit data to word addresses 15-5
SQL - Sequencer Load Load 16-bit data into a file 15-8

Allen-Bradley MicroLogix 1200 Specifications

General

Series	MicroLogix 1200
Type	Programmable Logic Controller (PLC)
Mounting	DIN rail or panel mount
Programming Language	Ladder Logic
Programming Software	RSLogix 500
I/O Points	Up to 40
Communication Ports	RS-232, RS-485
Memory	6 KB user memory
Power Supply	24V DC or 120/240V AC
Expansion	Supports expansion I/O modules
Operating Temperature	0°C to 55°C (32°F to 131°F)
Dimensions	90 mm x 110 mm
Weight	0.5 kg (1.1 lbs)