User Guide

BACnet Int egrat ion Guide – DOAS_08.000 Rev 2 Page | 6

Object Variable Description Active Text Inactive Text

Sensor Values

AV-26 Outside_RH_from_BM S Out side RH from BM S. Real (% RH)

AV-27 Outside_Temp_from_BM S Outside Temp from BMS Real (°F)

AV-28 Return_RH_from_BMS Ret urn RH from BMS Real (% RH)

AV-29 Return_Temp_from_BM S Ret urn Temp from BM S Real (°F)

AV-30 Space_1_CO2_from_BM S Space 1 CO2 from BM S Real (ppm)

AV-31 Space_2_CO2_from_BM S Space 2 CO2 from BM S Real (ppm)

AV-32 Return_CO2_from_BM S Return CO2 fr om BM S Real (ppm)

AV-33 Space_RH_from_BM S Space RH from BMS Real (% RH)

AV-34 Space_St atic_from _BM S Space St at ic from BM S Real (“ wc)

AV-35 Space_Temp_from_BM S Space Temp from BM S Real (°F)

Advanced BACnet Settings

M enu Structure Reference

M ain M enu

Control Variables

Advanced

Network Settings

Advanced Settings

Addit ional set tings can be accessed in the BACnet Advanced Sett ings menu including

BACnet Broadcast M anagement Device (BBM D) configuration, relinquish default

settings, Change of Value (COV) increments and restoring binary text values.

BBM D CONFIGURATION

To configure the controller to operate with a BACnet Broadcast M anagement Device

(BBMD) on IP networks, go t o the advanced BACnet settings menu and ent er the IP

address of the BBM D, foreign device configuration, and time to live set tings.

COV INCREM ENTS

BACnet COV is an optional portion of BACnet that supports providing new

values/ information only after an increase or decrease of t he value is at least the listed

COV increment. The controller’s COV increments are based on the unit of measure. All

variables wit h the same unit of measure share the same COV increment value. Values

can be adjusted on this screen, or by writing t o the COV increment propert y of any

BACnet object.

RELINQUISH DEFAULT SETTINGS

When the Return to Default function is enabled, the present value will not overwrite

the relinquish default value and on a loss of power the controller will boot with last

saved default values instead of last written values. This must also be enabled for the

BACnet Comm Loss relinquish default to work.

When the Enable Relinquish Default function is enabled any value in the priorit y array

for binary values or analog values will be cleared if a communication loss is det ected.

All commandable point s will revert to the relinquish default value.

Communication loss is det ermined based on the BM S Watchdog. The watchdog

function must be enabled. The function will execut e 5 minutes aft er the watchdog

status goes inactive.