Rockwell Automation RECOMM-DNET DeviceNet Adapter for use with DPI AC Drives User Manual
Page 69
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Using Explicit Messaging
7-3
Table 7.1 – ControlLogix Message Requests and Responses
Box
Description
➀
Message Type
The message type must be CIP Generic.
➁
Service Code
The service code is the requested DeviceNet service.
Available services depend on the class and instance
that you are using. Refer to Appendix C, DeviceNet
Objects.
➂
Object Type
The object type is a DeviceNet class. Refer to
Appendix C, DeviceNet Objects, for available classes.
➃
Object ID
The object ID is an instance of a DeviceNet class. Refer
to Appendix C, DeviceNet Objects, for available
instances.
➄
Object Attribute
The object attribute is a class or instance attribute. Refer
to Appendix C, DeviceNet Objects, for available classes.
➅
Source
This box contains the name of the tag for any service
data to be sent from the scanner to the adapter and
drive. A tag must be specified even if it is not used.
➆
Num. of Elements
This box contains the number of bytes of service data to
be sent or received in the message.
➇
Destination
This box contains the name of the tag that will receive
service response data from the adapter and drive. A tag
must be specified even if it is not used.
➈
Path
The path includes the following:
• Name of the DeviceNet scanner.
• Communication port on the front of the 1756-DNB
scanner. Always 2.
• Node address of the DeviceNet adapter. This is set
with switches or parameters in the DeviceNet adapter.
Click Browse to find the path or type in the name of a
adapter that you previously mapped.