Rockwell Automation 1772-LS_LSP,D17726.8.6 PROG/OPER MANUAL-MINI PLC-2/05 - Manual (Page 131)

Sequencers
Chapter 12
12-5
Sequencer Input
Purpose: Compares input data to stored data for equality.
Programmed as an input instruction. The counter is externally controlled
by the ladder diagram logic in your program. This instruction requires 5-8
words of the program. May be programmed with a sequencer output
instruction. You can compare up to 64 bits. You can mask the unused
input bits.
If the rung becomes:
True - The instruction increments to the next step and compares the input
word to current step for equality.
False - No action is taken.
ATTENTION: The counter address of the sequencer input
instruction should be used only for the intended instruction and
the corresponding instructions which manipulate the preset or
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.
Keystrokes: Start by expanding your data table if required. Expand it to a
size large enough to store your program. See appendix C for data table
size values.
[SEARCH] The screen does not change.
The DATA TABLE CONFIGURATION appears. The cursor is on the first digit
of NUMBER OF 128 WORD D.T. BLOCKS.
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