Rockwell Automation 1772-L8_LW_LWP_LX_LXP,D17726.5.8 User Manual User Manual

Page 297

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Data Transfer File Instuction

Chapter 19

19-5

Table 19.A

Modes of Operation

Mode of Operation

R = Rate Per Scan

Number of Words

Operated Upon

Complete

R = File Length

Entire file per scan

Distributed complete

0<R< File Length

R words per scan

Incremental

R = 0

One word per rung

transition

ATTENTION: The counter address for the File-to-File Move
instruction should be reserved for that instruction only. Do not
manipulate the counter accumulated or preset word. Changes to
these values could result in unexpected machine operation with
damage to equipment and/or injury to personnel.

When the rung becomes:

True

The data is transferred from the source file to the destination
file at the specified rate per scan.

False

No action is taken.

Here is an explanation of each value:

This Value:

Stores This:

Counter address

Address of the instruction's file position in the accumulated

value area of the data table.

Position

Current word being operated upon (accumulated value of

the counter).

File length

Number of words in file (preset value of the counter).

File A

Starting address of the source file.

File R

Starting address of the destination file.

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