Honeywell Centraline FALCON, Руководство пользователя, Страница: 68 / 276

FALCON USER GUIDE
EN2Z-0962GE51 R0715 64
Editing x x
Equivalent COV Period
Defines the amount of time in seconds between the periodic transmissions of the
present value. This property can be used alone or in combination with the Increment
property.
When the period property is used in combination with the increment property, the
present value will always be updated periodically independent on the transmissions
of the present value due to the COV setting.
Example:
Increment Period Present Value Update
0,2 K
when present value has
changed by 0,2 K or more
3 s every 3 s
0,2 K 3 s every 3 s and when present
value has changed by 0,2 K or
more
Priority Level
Datapoint Type AI AO AV BI BO BV MI MO MV PC RI RO
User Interface HTML Interface CARE
Editing -
Equivalent
The value of the present value is controlled by a command prioritization mechanism
which is based upon a fixed number of priorities that are assigned to command –
issuing entities (BACnet tasks, control strategy, time program, manual operator
inputs). Each of these entities writes to the present value with its assigned priority
level. The number of priorities is arranged in a priority list of descending priority.
Example (see next page):
Priority Level Value
1
Manual Life Safety -
2
-
3
-
4
-
5
Critical Equipment Control 19,5 °C
6
Minimum On Off
7
8
Manual Operator 21,0 °C
9
-
10
-
11
-
12
-
13
-
14
-
15
Control Program -