Rockwell Automation 1772-LS_LSP,D17726.8.6 PROG/OPER MANUAL-MINI PLC-2/05 User Manual
Page 165
Block Transfer
Chapter 14
14-10
Keystrokes: In this example, you enter a block transfer read instruction.
[BLOCK
XFER]
The screen does not change
EN
Block Xfer Read
Data Addr:
Module Addr:
Block Length:
File:
030
100
01
110
DN
010
07
110
07
110Ć
1
Note that the words BLOCK TRANSFER READ are flashing.
Insert the following values. The cursor moves automatically through the
instruction. The values are:
DATA ADDRESS 040
MODULE ADDRESS 130
BLOCK LENGTH 05
FILE
070-074
The instruction should look like this:
EN
Block Xfer Read
Data Addr:
Module Addr:
Block Length:
File:
040
130
05
074
DN
010
07
110
07
070Ć
Purpose: A block transfer writes data from the processor’s output image
table to an I/O module in one scan.
Programmed as an output instruction.
Block length depends on the type of module you are using.
Request for transfer is made in the program scan.
I/O scan is interrupted for the transfer.
Done bit remains on for one scan after a valid transfer.
Request requires two words of the data table.
Block Transfer Write