Rockwell Automation 2098-DSD-xxx Ultra3000 Digital Servo Drives with DeviceNet User Manual

Page 113

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Publication 2098-RM004A-EN-P – August 2002

Programming Reference

2-97

Parameter Object
Instance Attributes

Attr ID

Access
Rule

Stub/
Full

Name

Data Type

Description

1

1

Stub

Parameter
Value

Data type specified in Descriptor, Data
Type and Data Size

Actual value of parameter. It can be read
from or written to. This attribute is
read-only if bit 4 of Attribute 4 is TRUE.

2

Get

Link Path Size

USINT

Size of Link Path attribute. If this attribute
is 0, then no link is specified. Number of
BYTEs in attribute 3.

3

Link Path

ARRAY of DeviceNet path

Path to the object from where this
parameter value is retrieved.
The link path is limited to 255 BYTEs.

Segment
Type/Port

BYTE

Refer to the DeviceNet Specification listed
in Related Documentation on page P-2 for
a description of the data type: Segment
Type/Port.

Segment
Address

EPATH

Path (format depends on data contained in
segment type/port)

4

Descriptor

WORD

Descriptor of parameter. Bit Definitions for
Instance Attribute 4
on page 2-99

5

Data Type

USINT

Data type code. Data Types for Instance
Attribute 5
on page 2-99

6

Data Size

USINT

Number of BYTEs in Attribute 1, Parameter
Value

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