Controllogix message requests and responses – Rockwell Automation 1203-EN1 EtherNet/IP-to-SCANport Module User Manual
Page 67
Using Explicit Messaging
6-3
ControlLogix Message Requests and Responses
Box
Description
➊
Message Type
The message type is usually CIP Generic.
➋
Service Type
The service type indicates the service (for example, Get Attribute Single or Set
Attribute Single) that you want to perform. Available services depend on the class
and instance that you are using. Refer to
.
➌
Service Code
The service code is the code for the requested EtherNet/IP service. This value
changes based on the Service Type that has been selected. In most cases, this is
a read-only box. If you select “Custom” in the Service Type box, then you need to
specify a service code in this box (for example, 32 for a Get Attributes Scattered
service or 34 for a Set Attributes Scattered service).
➍
Class
The class is an EtherNet/IP class. Refer to
, for
available classes.
➎
Instance
The instance is an instance (or object) of an EtherNet/IP class. Refer to
, for available instances for each class.
➏
Attribute
The attribute is a class or instance attribute. Refer to
,
, for available attributes for each class or instance.
➐
Source Element
This box contains the name of the tag for any service data to be sent from the
scanner or bridge to the module and drive.
➑
Source Length
This box contains the number of bytes of service data to be sent in the message.
➒
Destination
This box contains the name of the tag that will receive service response data from
the module and drive.
➓
Path
The path is the route that the message will follow.
Tip: Click Browse to find the path or type in the name of an module that you
previously mapped.
Name
The name for the message.
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