Example Get Attribute Single Message - Allen-Bradley 22-COMM-E FRN 1.xxx User Manual

6-6 Using Explicit Messaging

Example Get Attribute Single Message

A Get Attribute Single message reads a single attribute value. In this
example, we read the value of a parameter in a PowerFlex 40 drive.
Example Message Format
Figure 6.4 Message Format for a Get Attribute Single Message
The following table identifies key settings for the message format:
Configuration
Service Type
Service Code
Class
Instance
Attribute
Destination
(1)
The default setting for Service Type is "Custom," which enables you to enter a Service
Code that is not available from the Service Type pulldown menu. When you select a
Service Type other than "Custom" from the pulldown menu, an appropriate Hex. value
is automatically assigned to the Service Code box which grays out (unavailable).
Value
(1)
Get Attribute Single
(1)
e (Hex.)
f (Hex.)
39 (Dec.)
1 (Hex.)
ParameterReadValue
Description
Read parameter data
Get_Attribute_Single
DSI Parameter Object
Parameter 39 - [Accel Time 1]
Parameter Value
Controller tag for response data
Refer to . . .
C-27
C-12
C-24
C-24
C-25
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