5 how to control, 1 how to control, Opceip ethernet/ip – GE Industrial Solutions AF-600 FP OPCEIP EtherNet_IP User Manual
Page 22: 1 i/o assembly instances
5 How to Control
5.1 How to Control
5.1.1 I/O Assembly Instances
I/O Assembly Instances are a number of defined process control objects with defined content comprising control and status information.
Unlike DeviceNet it is possible to run with asymmetrical instances. E.g. 101/153 = 8 bytes/20 bytes.
It is not possible to mix instances across profiles, e.g. 20/100. Assembly instances must be consistent to the: ODVA or Drive profile.
The controlling instance can be read in par. EN-20, Control Instance.
The figure below shows the I/O Assembly Instance options for controlling and monitoring the AF-650 GP/AF-600 FP drive.
Profile
Direction
Instances
(decimal)
Size
(bytes)
Data
ODVA
Originator
→Target
20
4
21
4
Target
→Originator
70
4
71
4
Drive
Originator
→Target
100
4
CTW
(Drive)
101
8
CTW
(Drive)
103
20
CTW
(Drive)
Target
→Originator
150
4
STW
(Drive)
151
8
STW
(Drive)
130BA920.10
153
20
STW
(Drive)
OPCEIP EtherNet/IP
21
5