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6.1.4 Explicit Messaging
Explicit Messaging is used in commissioning and parameterizing of the EtherNet/IP device. Explicit
messages provide multipurpose, point-to-point communication paths between two devices. They
provide the typical request/response-oriented network communication used to perform nodecon-
figuration and problem diagnosis. Explicit messages typically use low priority identifiers and con-
tain the specific meaning of the message right in the data field. This includes the service to be
performed and the specific object attribute address.
NOTE! If Class 1 connection (cyclic data) has been established then Explicit Messages cannot be
used to control Output Data. However this restriction doesn’t apply for IO Data reading.
6.1.4.1 List of Object Classes
The Communication Interface supports the following object classes.
CIP Objects
Vendor Specific Objects
Table 4.
Class Object Details
0x01 Identity Object See 6.2.1.1
0x04 Assembly Object See 6.2.2.1
0x06 Connection Manager Object See 6.2.1.3
0x02 Message router class See 6.2.1.2
0x28 Motor Data Object See 6.2.2.2
0x29 Control Supervisor Object See 6.2.2.3
0x2A AC/DC Drive Object See 6.2.2.4
0xF5 TCP/IP Interface Object See 6.2.1.4
0xF6 Ethernet Link Object See 6.2.1.5
Table 5.
Class Object Details
0xA0 Vendor Parameters Object See 6.2.3.1
0xBE
Assembly Instance Selector
Object
See 6.2.3.2
0xA1 Motor Control Mode Object See 6.2.3.3
0xA2 Fault History Object See 6.2.3.4
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