EtherNet/IP 4-3
© 2005 HMS Industrial Networks
AB7665 User manual
Assembly Objects and Connections
There are 3 Assembly Object instances accessible from EtherNet/IP: input, output
and status. The input and output assemblies are linked to the input and output data
tables. The status assembly provides current status information about the Anybus-
X.
The assembly instances associated with these 3 assemblies are listed below.
Connection Points
Class 1 connections can be established to these assemblies using the connection
points listed in Table 4-2.
Connection sizes, when connecting to the input and output assemblies can be set
according to the size of the configured I/O data tables configured plus the status
and command words in the I/O assemblies. (see the assembly formats below) If a
connection is created with a size larger than the configured I/O data table size, the
extra data will be filled with 0.
Assembly
Instance
Description
Size in Bytes
100
Input
508 max
101
Status
10
150
Output
508 max
Table 4-1 EtherNet/IP Assembly Instances
Conn
Point
Description
Size
in Bytes
Use
3
Heartbeat
0
Output connection point
for input-only connections.
100
Input
0-508
Input connection point.
101
Status
10
Input connection point.
150
Output
0-508
Output connection point.
Table 4-2 EtherNet/IP Connection Points
