Rockwell Automation 1772-LV Mini-PLC - 2/15 Programmable Controller (Series B) Programming and Operations - Manual (Page 89)

Advanced Instruction Set
Chapter 6
6Ć32
If the rung condition becomes:
True
Action is taken.
False
No action is taken.
WARNING: The counter address of the sequencer input
instruction should be used only for the intended instruction and
the corresponding instructions which manipulate the
accumulated value. Do not inadvertently manipulate the preset
or accumulated word. Changes to these values could result in
unpredictable machine operation or a run-time error. Damage to
equipment and/.or injury to personnel could occur.
Sequencer Output
Symbol: SEQ 0
Purpose: Controls consecutive outputs for every step of the sequencer.
Controls up to 64 outputs simultaneously.
Syntax: Programmed as an output instruction. Can be used with a sequencer
input instruction or another input instruction.
You mask the unused output bits (chapter 10 explains mask).
This instruction requires 5-8 words of the user program area.
Function: Outputs are controlled upon execution of the instruction then and
the counter increments to the next step.
When the rung becomes:
True
The counter increments to the next step and that data will be outputted every
scan that the rung remains true.
When AC=PR, the done bit is set.
False