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Rockwell Automation 1785-LTx,D17856.2.1 Classic PLC-5 Programmable Controllers Users Manual User Manual

Page 98

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Transferring Discrete and BlockĆTransfer Data

Chapter 8

8-3

Figure 8.1

Automatic I/O Transfer between Supervisory and

AdapterĆMode Processors

15298

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03

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07

10

13

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17

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Word

0

1

2

3

4
5

6
7

Word

0

1

2

3

4
5

6
7

Supervisory Processor

AdapterĆMode Processor

I:30 - I:37 (or adapter image file)

Supervisory Processor

AdapterĆMode Processor

O:30 - O:37 (or adapter image file)

Supervisory Processor

PLCĆ2 0X0-0X7

PLCĆ3 OXX0-OXX7

PLCĆ5 O:X0-O:X7

Supervisory Processor

PLCĆ2 1X0-1X7

PLCĆ3 IXX0-IXX7

PLCĆ5 I:X0-I:X7

Output File

Input File

Input File

Output File

Word 0 is reserved for block transfer and status.

If data from the supervisory processor is intended to control outputs of the
adapter-mode processor, the ladder logic in the adapter-mode processor
must move the data from its input file (I/O rack 3 or the adapter image file)
to its output file (local I/O). Use XIC and OTE instructions for bit data;
use move and copy instructions for word data.

If you want the supervisory processor to read data from a data file in the
adapter-mode processor, ladder logic in the adapter-mode processor must
move that data to its output file (I/O rack 3 or the adapter image file) for
transfer to the supervisory processor.