Danfoss EtherNet/IP Midi Drive FC 280 Programming Manual page 16

Control
4.2.4 Control Word Profile
The control profile is selected in parameter 8-10 Control
Word Profile.
•
ODVA gives access to the ODVA-specific profiles
and assembly instances:
-
4 4
-
-
-
•
FC profile enables the Danfoss profile and
assembly instances:
-
-
-
-
-
-
For more information on the different profiles, refer to
chapter 4.3 FC Control Profile and chapter 4.4 ODVA Control
Profile.
NOTICE
Change of control profile.
It is only possible to change the control profile while the
frequency converter is stopped. Control word and
reference are not recalculated to match the selected
profile but are kept at the last good known value.
Illustration 4.1 Different PCDs and Corresponding Filter Parameters
14
EtherNet/IP
20
21
70
71
100
101
103
150
151
153
Danfoss A/S © 06/2016 All rights reserved.
4.2.5 Change-of-State, COS
The event-controlled operating mode is used to minimize
network traffic. Messages are transmitted only if a defined
state or value has changed. The insertion of COS filters
determines the condition for triggering a COS message
(parameter 12-38 COS Filter), for each bit in the different
PCD-words.
The filter acts like a logical AND-function: If a bit in the
filter is set to 1, the COS-function triggers when there is a
change to the corresponding bit for the PCD-word.
To filter out undesired events for COS, use
Parameter 12-38 COS Filter. If a filter bit is set to 0, the
corresponding I/O instance bit is unable to produce a COS
message. By default, all bits in the COS filters are set to 0.
To signal that the connection has not been interrupted, or
the device is not powered off, a heartbeat message is
transmitted within a specified time interval (heartbeat
interval). This interval is defined in attribute heartbeat time
of the connection object, Class 0x01.
To prevent the device from producing heavy network
traffic when a value changes frequently, a production
inhibit time is defined in parameter 12-37 COS Inhibit Timer.
This parameter defines the minimum time between 2 COS
messages. If parameter 12-37 COS Inhibit Timer is set to 0,
the production inhibit timer is disabled.
MG07H102