Instances, Instance attributes, Services – Rockwell Automation 1440-TPS02-01RB XM-320 Position Module User Manual

Page 102: Instances instance attributes services

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Publication GMSI10-UM005C-EN-P - May 2010

94 DeviceNet Objects

Instances

Instance Attributes

Services

1

Attributes can only be set while the device is in Program Mode. See the description of the Device Mode Object
for more information.

Table C.21 Analog Input Point Object Instances

Instance

Name

Description

1

Position

Position measurement for transducer 1.

2

Position

Position measurement for transducer 2.

Table C.22 Analog Input Point Object Class Attributes

Attr ID

Access
Rule

Name Data

Type

Description

Semantics

3

Get

Value

REAL

The position
measurement value.

The raw measured value plus
any offset specified by
Calibration Bias.

4

Get

Status

BOOL

Indicates if a fault or
alarm has occurred.

0 = Operating without alarms or
faults
1 = Alarm or fault condition
exists. The Value attribute may
not represent the actual field
value.

8

Get

Value Data Type USINT

Determines the data type
of the Value.

1 = REAL

122

Get/Set

Calibration Bias

REAL

Offset added into the raw
measured value.

Used to set the "zero point."

147

Get/Set

Data Units

ENGUNIT

The units context of the
Value attribute.

See DeviceNet Specification
Volume 1 Appendix.

Table C.23 Analog Input Point Object Services

Service
Code

Class/Instance Usage

Name

Description

0E

h

Class/Instance

Get_Attribute_Single

Returns the contents of the
specified attribute.

10

h

Instance

Set_Attribute_Single

Sets the contents of the
specified attribute.

1

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