Rockwell-automation 1203-EN1 EtherNet/IP-to-SCANport Module Manual do Utilizador Página 74

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6-10 Using Explicit Messaging
A Get Attributes Scattered message reads the values of multiple
attributes. In this example, we read the values of various parameters in a
1305 drive.
Example Message Format
Figure 6.8 Message Format for a Get Attributes Scattered Message
The following table identifies key settings for the message format:
Example Get Attributes Scattered Message
Configuration Value Description Refer to . . .
Service Type
Service Code
Class
Instance
Attribute
Source Element
Source Length
Destination
Custom
32
93 (Hex.)
0 (Dec.)
0 (Hex.)
ScatteredReadRequest
16 Bytes
ScatteredReadResponse
Required for scattered messages
Code for Get Attributes Scattered
SCANport Pass-Through Parameter Object
Required for scattered messages
Required for scattered messages
Controller tag for request data
Eight 16-bit words of data
Controller tag for response data
C-22
C-20
6-12
6-12
6-11
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