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

Page 269

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Quick Reference

Appendix C

CĆ13

Table C.L

Sequencer Instructions

Key Sequence

1779-T3 Display

Instruction Notes

SEQ 0

EN

Sequencer Output

Counter Addr:

Current Step:

Seq Length:

Words per Step:

File:

001

001

1

110Ć 110

DN

030

Mask:

010Ć 010

030

17

030
15

Output Words

1:

3:

010

2:

4:

Output instruction.
Increments, then transfers data.
Same data transferred each scan that the rung is true.
Counter is indexed by the instruction.
Unused output bits can be masked.
Requires 5-8 words of your program.

SEQ 1

Sequencer Input

Counter Addr:

Current Step:

Seq Length:

Words per Step:

File:

000

001

1

110Ć 110

030

Mask:

010Ć 010

Input Words

1:

3:

010

2:

4:

Input instruction.
Compares input data with current step for equality.
Counter must be externally indexed by your program.
Unused input bits can be masked.
Requires 5-8 words of your program.

SEQ 2

EN

Sequencer Load

Counter Addr:

Current Step:

Seq Length:

Words per Step:

File:

000

001

1

110Ć 110

DN

030

030

17

030
15

1:

3:

010

2:

4:

Output Words

Output instruction.
Increments, then loads data.
Counter is indexed by the instruction.
Does not mask.
Requires 4-7 words of your program.

NOTE: Numbers shown are default values. Numbers in shaded areas must be replaced by your entered values. The number of default

address digits initially displayed (3 or 4) will depend on the size of the data table.
To access the Data Monitor Display, enter all instruction parameters. Press key sequence:

[DISPLAY][0] for the binary monitor mode;

[DISPLAY][1] for the hexadecimal monitor mode.

This Value:

Stores the:

This Value:

Stores the:

Counter Address

Address of the instruction in the

accumulated value area of the data table

Mask

Starting address of the mask file

Position

Position in the sequencer table

(accumulated value of counter)

Word Address

Address of the source word or destination

word outside of the file

Seq Length

Number of steps (preset value of the

counter)

Output Words

Words controlled by the instruction

Words per Step

Width of the sequencer table

Load Words

Words fetched by the instruction

File

Starting address of the source file

Input Words

Words monitored by the instruction

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