Allen-Bradley PowerFlex 20-comm-c FRN 1. Series, User Manual

Page: 93 / 159

ControlLogix Applications 6-19
Figure 6.23 Explicit Messaging
A Get_Attributes_Scattered Message allows for reaching multiple
parameters that may or may not be in sequential order (
Figure 6.24 ).
•
A Service Code of “4B” indicates the Get_Attributes_Scattered
service (see
Page C-19 , Object Specific Services ).
•
A Class Number of “93” indicates accessing the DPI Parameter
Object (see
Page C-16 , DPI Parameter Object ).
•
An Instance Number of “0” is the Class Attributes for the Drive (see
Page C-16 , Instances ).
•
The Source identifies the service data with the request message to
send.
•
The Destination will contain the response message to the request.
Figure 6.24 Get_Attributes_Scattered Message Screen
Explicit Messaging Example
This rung sends a CIP message to the PowerFlex 70 drive at ControlNet address 2. The data sent is obtained
from the MessageSendData tag. The data received is stored in the MessageReplyData tag. This MSG instruction
can be configured to send any CIP message.
0
EnableDriveMessage
EN
DN
ER Type - CIP Generic
Message Control
DriveMessageControl ...
MSG
This rung sends a CIP message to the PowerFlex 70 drive at ControlNet address 2. The data sent is obtained
from the MessageSendData tag. The data received is stored in the MessageReplyData tag. This MSG instruction
can be configured to send any CIP message.
(End)
20COMM-UM003A-EN-P.book Page 19 Wednesday, November 7, 2001 3:46 PM
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