© Honeywell LT-MS4IOG Rev. 04 | Revised October 2015
49
INSTALLATION & OPERATIONS GUIDE | MICROSET 4
BV and AV assignments
Each Microset 4 has a number of pre-assigned data points—Binary and Analog Values (BVs and AVs).
These data points are available from the Microset 4 as BACnet objects; BACnet-compliant devices can
access the properties of these objects. For a complete reference of objects and properties available in
Microset 4s, see the
Programmer’s Guide and Reference for BACtalk Systems (LTBT-TM-PRGRMR)
.
Table 9 and Table 10 are concerned only with the Present Value property of the AV and BV objects.
These are listed as Data Points.
Table 9
BV assignments for the Microset 4.
DATA
POINT
READ
ONLY
DESCRIPTION
ON ACTION/STATUS
OFF ACTION/STATUS
BV-64
Controls occupied/unoccupied, rented/vacant
status (see Table 6 on page 21).
Sets Microset 4 to occupied
or rented operation.
Sets Microset 4 to
unoccupied or vacant
operation.
BV-65
Enables and disables ON/OFF mode (see
Table 6 on page 21).
Enable ON/OFF mode.
Disable ON/OFF mode.
BV-66
X
Override status. Activated in unoccupied/vacant
modes when the user initiates override from the
Microset 4.
ON when override timer (AV-
98) is non-zero.
OFF when override timer
(AV-98) is zero.
BV-67
X
Occupied status. Reflects value of BV-64 or BV-
66 as appropriate. Also reflects user selection of
ON/OFF mode when BV-64 is ON (see Table 6
on page 21). Use this as a flag in DDC to control
equipment occupied/unoccupied operation.
Space is occupied. Current
setpoints (AV-99, AV-100)
calculated using occupied
logic.
Space is unoccupied.
Current setpoints (AV-99, AV-
100) calculated using
unoccupied logic.
BV-68
Service modes lockout.
Lockout field service mode
and balance mode.
Allow field service mode and
balance mode access.
BV-69
English/metric mode swap. See “English and
metric units” on page 19.
Swap native units mode
from English to Metric or vice
versa.
Use units as determined by
native units mode.
BV-70
X
Microset 4 connection status.
Microset 4 connection
detected.
Microset 4 not detected.
BV-71
X
Native units mode status.
English units.
Metric units.
BV-72
a
Fan low speed.
Enable fan low speed status
indicator at Microset 4.
BV-73
a
Fan medium speed.
Enable fan medium speed
indicator at Microset 4.
BV-74
a
Fan high speed.
Enable fan high speed
indicator at Microset 4.
BV-76
Reserved for future fan auto icon.
n/a
n/a
BV-77
Display/hide heating icon.
Display heating icon.
Hide heating icon.
BV-78
Display/hide cooling icon.
Display cooling icon.
Hide cooling icon.
BV-80
Fan control mode (see Table 6 on page 21).
Fan control mode.
No-fan-control mode.
BV-81
Select office mode or hotel mode operation (see
Table 6 on page 21).
Hotel mode.
Office mode.
BV-82
Space temperature and time displays alternate.
Enable alternate time of day
display.
Disable alternate time of day
display.
BV-83
Select 12- or 24-hour time format.
Display time in 24-hour
format.
Display time in 12-hour
format.
BV-84
Display/hide room humidity.
Display room humidity.
Hide room humidity.
BV-85
LED Disable with new ROC for VLCs
Disables LEDs.
Factory default; LEDs
enabled.
BV-86
Lights Command with new ROC for VLCs
Display Lights Command
BV-87
Window Command with new ROC for VLCs
Display Window Command
