How To Control The Fc 300; I/O Assembly Instances - Danfoss VLT AutomationDrive Manual
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VLT
AutomationDrive EtherNet/IP
How to Control the FC 300
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 consistent to the profile: ODVA or FC profile
The controlling instance can be read in par. 12-20 Control Instance.
The figure below shows the I/O Assembly Instance options for controlling and monitoring the FC 300
drive.
Profile
Direction
(par. 8-10)
Originator -> Target
ODVA
Target -> Originator
Originator -> Target
FC
Target -> Originator
Instance
(decimal)
20
21
70
71
100
101
103
150
151
153
th
MG.90.Jx.02 ver. 5
September 2007 – VLT is a registered Danfoss trademark
Size
(bytes)
4
CTW
(20)
4
CTW
(21)
4
4
4
8
20
4
STW
(FC)
8
20
Data
REF
REF
MAV
20
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