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Rockwell Automation Publication 842E-UM001C-EN-P - September 2016
Chapter 3
EtherNet/IP Overview
I/O Assembly
The I/O data are retrieved/output via instances.
Figure 15 - Connections for the Configuration Assembly
Instance
Byte
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
1
0
Position value (least significant byte)
1
Position value
2
Position value
3
Position value (most significant byte)
2
0
Position value (least significant byte)
1
Position value
2
Position value
3
Position value (most significant byte)
4
Warning Alarm
3
0
Position value (least significant byte)
1
Position value
2
Position value
3
Position value (most significant byte)
4
Velocity value (least significant byte)
5
Velocity value
6
Velocity value
7
Velocity value (most significant byte)
Table 12 - Data Format of the Attributes of the I/O Assembly
23 h Position Sensor
02h Message
Router
01h Identity
F6h
06h Connection Manager
04h Assembly
F4h
F5h
Network
48 h QoS
47 h DLR
I/O
I/O
