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Adjusting the TV-UC561 driver properties
TruVu™ UC561
CARRIER CORPORATION ©2021
Installation and Start-up Guide
All rights reserved
31
Periodic rebinding interval
If a microblock uses a wildcard in its address, this timer determines how often the
microblock will attempt to find the nearest instance of its target. For example, if
an outside air temperature address uses a wildcard, a VAV application will look for
the outside air temperature on the same network segment or on the nearest
device containing that object.
BACnet COV Throttling
Enable COV Throttling
Under normal circumstances, COV Throttling should be enabled to prevent
excessive network traffic if an object's COV Increment is set too low. See
EXCEPTION below.
When enabled, if an object generates excessive COV broadcasts (5 updates in 3
seconds), the driver automatically throttles the broadcasts to 1 per second. Also,
if the object's value updates excessively for 30 seconds, an alarm is sent to the i-
Vu® application listing all objects that are updating excessively. A Return-to-
normal alarm is sent only after all objects have stopped updating excessively.
EXCEPTION: In rare circumstances, such as process control, a subscribing object
may require COV updates more frequently than once per second. For these
situations, clear this checkbox, but make sure that your network can support the
increased traffic. You will also need to disable the
Excessive COV
alarms under
the driver's
Common Alarms
.
Trend Sampling
Collect a daily midnight
sample for all points in this
controller that are sampling
on COV
For values that change infrequently, select to verify at midnight daily that the
point is still able to communicate trend values.
Local Network Configuration
Allow Local Network
Configuration from other
devices on the local network
for 24 hours
You can unlock a device for 24 hours to make IP address changes.
Debug
Enable Debug Messages
Enable only if directed by Carrier Control Systems Support.
Summary of Contents for TruVu UC561
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