BACNET® FIXED FUNCTION THERMOSTAT
31-00093—01
6
Table 3. ISU Parameters.
ISU Parameter
Code
Description
Allowed Values
120
Year, first 2 digits
19-21
130
Year, second 2 digits
00-99 (00-54 if ISU 200=21)
140
Month
1-12
150
Day
1-31
160
Schedule format BV-133 0 – not programmable (BV-133=0) 4 – 7 day programmable (BV-133=1)
280
Backlight control BV-79 0 – on for 20 seconds after keypress
1 – low always on, bright after keypress
320
Swap English/Metric
BV-69
1 – show opposite units to specified in DDC header
330
Daylight saving
AV-127
0 – off; no automatic adjustments
1 – pre 2007 scheme
2 – 2007 and later scheme
500
Filter change reminder
AV-124
0 – reminder not used
1 – 10 days
2 – 30 days
3 – 60 days
4 – 90 days
5 – 120 days
6 – 365 days
510
Hum pad change
reminder
AV-125
0 – reminder not used
1 – 90 days
2 – 180 days
3 – 365 days
520
UV lamp change
reminder
AV-126
0 – reminder not used
1 – 365 days
540
Program periods
AV-129
2 – Wake/Sleep
4 – Wake/Leave/Return/Sleep
640
Clock format
BV-83
12 – 12 hour (BV-83=0)
24 – 24 hour (BV-83=1)
670
Keypad lock
AV-128
0 – no lock
1 – access temperature settings only
2 – fully locked
700
Sensed room
temperature offset (AV-
138)
-4 to +4 degrees F
701
Sensed room humidity
offset (AV-139)
-5% TO +5%
Humidity cannot be adjusted above 100% or below 0%.
702
Sensed outside air
temperature offset (AV-
140)
-4 to +4 degrees F
703
Sensed outside humidity
offset (AV-141)
-5% TO +5%
Humidity cannot be adjusted above 100% or below 0%.
800
MS/TP MAC
0-127
801
BACnet Device Instance
- first digit
0-4
802
BACnet Device Instance
second and third digits
00-99
803
BACnet Device Instance
forth and fifth digits
00-99
804
BACnet Device Instance
sixth and seventh digits
00-99