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

Page 152

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Communicating with Devices on a ControlNet Link

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.

Mapping Addresses

The programming software includes a PLC/SLC mapping tool which allows
you to make an existing controller array tag in the local controller available
to PLC-2, PLC-3, PLC-5, or SLC controllers.

DriveLogix writes
to PLC-2

In the DriveLogix 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

DriveLogix 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 or N

Example source element: N7:10

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

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

Example destination tag: array_1

DriveLogix reads
from PLC-2

Use the PLC-2 compatibility file.

Example source element: 010

In the DriveLogix 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.

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2

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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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