Rockwell Automation 1772-LS_LSP,D17726.8.6 PROG/OPER MANUAL-MINI PLC-2/05 User Manual

Page 145

Sequencers

Chapter 12

12-19

00101010 10101010

The screen does not change.

[INSERT]

BINARY DATA MONITOR

SEQUENCER INPUT

STEP: 001

COUNTER ADDR: 200

SEQUENCER LENGTH: 006

FILE: 600Ć 613

DATA:

MASK ADDR: 075 076

DATA:

STEP

WORD 1

WORD 2

001

002

003

004

005

006

00000000

00000010

00001010

00010001

01000001

00000000

DATA:

OUTPUT ADDR: 012 013

00000000 00000000 00000000 00000000

00101010 10101010 00000000 00000000

00101010 10101010

[CANCEL COMMAND]

To display your rung.

Sequencer Load

Purpose: Places data into sequencer file that your established in the data
table for this instruction.

Programmed as an output instruction. You can not mask any unused bits.
The counter is internally controlled by the ladder diagram logic in
your program. This instruction requires 4-7 words of the user
program area.

A false-to-true rung transition enables the instruction.

When the rung becomes:

True - The instruction increments to the next step and loads the data.

False - No action is taken.

Use this instruction for:

Machine diagnostics - If the actual sequence of an operation becomes

mismatched with the desired sequence of operation as contained in the
sequencer input instruction, a fault signal can be enabled by the
user program.

Teach sequential operation - The I/O conditions representing the desired

operation can be loaded into the sequencer input tables as the machine is
manually stepped through the control cycle.