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Rockwell Automation 5730 DriveLogix5730 Controller for PowerFlex 700S Drives with Phase II Control User Manual

Page 125

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Communicating with Devices on an EtherNet/IP Link

6-21

The DriveLogix5730 controller can send typed or word-range commands to
PLC-5 controllers. These commands read and write data differently. The
following diagrams show how the typed and word-range commands differ.

The DriveLogix5730 controller can process messages initiated from PLC or
SLC controllers. These messages use data table addresses. In order for these
controllers to access tags within the DriveLogix5730 controller, you map
tags to data table addresses.

DriveLogix5730
writes to PLC-2

In the DriveLogix5730 controller, select one of these data
types:

SINT, INT, DINT, or REAL

Example source element: array_1

Use the PLC-2 compatibility file.

Example destination tag: 010

DriveLogix5730
reads from PLC-5
or SLC

Specify the destination file type based on the destination
device:

PLC-5 typed read: S, B, N, or F
PLC-5 word-range read: S, B, N, F, I, O, A, or D
SLC: B, N or F

Example source element: N7:10

In the DriveLogix5730 controller, specify the destination data
type based on the destination device:

PLC-5: SINT, INT, DINT, or REAL
SLC: INT, REAL

Example destination tag: array_1

DriveLogix5730
reads from PLC-2

Use the PLC-2 compatibility file.

Example source element: 010

In the DriveLogix5730 controller, select one of these data
types:

SINT, INT, DINT, or REAL

Example destination tag: array_1

Type of MSG
Instruction:

Supported Source File Types:

Supported Destination File Types:

16-bit words in
PLC-5 controller

32-bit words in
DriveLogix5730 controller

The typed commands maintain data structure and value.

1

2

3

4

Typed read command

16-bit words in
PLC-5 controller

32-bit words in
DriveLogix5730 controller

The word-range commands fill the destination tag contiguously. Data
structure and value change depending on the destination data type.

Word-range read command

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2

3

4

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2

3

4

1

2

3

4

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