Ać14, Plc programming considerations appendix a, Output data (block transfer write) – Rockwell Automation 2711 PANELBUILDER SOFTWARE USER MANUAL User Manual

Page 378

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PLC Programming Considerations

Appendix A

A-14

Figure A.9

Input and Output Data Files

Word

1
2
3
4
5
6
7
8
9

10

16
17
18

24
58

64

Word

1
2
3
4
5
6
7
8
9

10

16
17
18

24
58

64

20219

Read File

(Inputs)

Word

0
1
2
3
4
5
6
7

10

11

17
20
21

27
70

77

0
0
0
0
0

Fault Counter

0
0

0
0
0
0
0
0

Fault Table

0

Discrete Input Data

from Rack #1

Discrete Input Data

from Rack #2

Slot 1

Slot 0

Fault

Bit

17

00

10 07

Bit

Write File

(Outputs)

Word

0
1
2
3
4
5
6
7

10

11

17
20
21

27
70

77

0
0
0
0
0
0
0
0

0
0
0
0
0
0
0
0

Discrete Output Data

to Rack #1

Discrete Output Data

to Rack #2

Slot 1

Slot 0

17

00

10 07

Bit

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

Discrete Input Data

from Rack #7

Discrete Output Data

to Rack #7

.

.

.

.

.

.

.

.

.

.

.

.

Output Data (Block Transfer Write)

Use a format similar to input data (Figure A.9). Reserve eight words of
output data for each full remote I/O chassis. Do not use the first eight
words. Remote I/O addresses corresponding to rack numbers 1 and 2 start
at words 10 and 20 octal, respectively.

Block Transfer Write File

Assign write block transfer file for sending output data via the 1771-SN to
the PanelView terminal. Output data for rack 1 uses words 10 through 17
octal, and rack 2 uses words 20 through 27 octal. For example, you could
assign a write file at 200 through 227 (octal). Choose your own method for
moving output data into the BTW file.

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