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CREATING A MESSAGE OBJECT
Notice that the Source Element and Source Length fields are now inactive.
6. Populate the Class, Attribute, and Instance fields as follows:
– Class: 4 (Hex)
To Read an assembly instance is a Class 4 (Hexadecimal) Assembly operation.
– Attribute: 3 (Hex)
This is a set Attribute option.
– Instance: 100
This is assembly instance 100 that you configured within the EtherNet/IP Configurator.
For more information on the Class and Attributes, see form 1770, the EtherNet/IP for SNAP
PAC Protocol Guide.
So far, the Message Configuration dialog box should look like this:
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IO4AB User’s Guide
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