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

Page 173

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background image

Block Transfer

Chapter 14

14-18

Figure 14.8

Buffering Data

R
1

0

Block Length

Code

1

0

4

0

0

5

Block Transfer Data (Buffer)

Block Transfer Data (Valid)

R
1

0

014

030

050

052

114

130

150

152

U

010

00

Rung 2

EN

Block Transfer Read

Data Addr:

Module Addr:

Block Length:

File:

030

140

03

052

DN

PUT

010

07

152

333

Rung 7

010

00

010

02

Rung 1

L

014

07

010

00

Rung 4

PUT

010

02

150

111

Rung 5

PUT

010

02

151

222

Rung 6

114

07

111

11

Rung 3

014

07

050-

114

07

050

G

111

051

G

222
052

G

333

Diagnostic Bit

10228ĆI

Data in the buffer file

050-052 will be moved

to 150-152 when:
A. Done Bit 114/07

is set (Valid transfer)

B. Diagnostic Bit is TRUE

for each word to be

moved in rungs 5-7

(valid data)

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