Specifications
BACnetT‐StatUser’sManualRev1.1,7/28/11 Page|11
Instance Description  Writable?  Limits Default  Notes 
MI-2  Control Mode  Y  1..4  1  1 – Auto (both cool and heat) 
2 – Cooling only 
3 – Heating only 
4 - Off 
MI-3  Operation Mode Status  N  1..6  0  1 – Off 
2 – Cooling stage 1 
3 – Cooling stage 2 
4 – Heating stage 1 
5 – Heating stage 2 
6 – Heating stage 3 
Device Object Detail 
Supported Properties  Writable?  Default  Property Range 
Restrictions 
Notes 
Object Identifier  N  1  N/A  Note that the device 
object id is the 
MSTP Network * 
1000 + the MAC 
address. 
Object Name  N  QSTAT10000-0-1  N/A  Built up with model 
name-MSTP 
Network Address-
MAC Address 
Object Type  N  N/A  N/A   
Description N Qstat10000 N/A  
Model Name  N  Qstat10000  N/A   
System Status  N  N/A  N/A   
Vendor Name  N  Quest Controls  N/A   
Vendor Identifier  N  506  N/A   
Firmware Revision  N  Major.Minor.Bug  N/A   
Application Software 
Version 
N Major.Minor.Bug N/A  
Protocol Version   N  1  N/A   
Protocol Revision  N  5  N/A   
Protocol Service Supported  N  See BIBB list above  N/A   
Protocol Object Types 
Supported 
N  See Object list above  N/A   
Object List  N  Object Count  N/A   
Maximum APDU Length 
Accepted 
N 50 N/A  
Segmentation Supported  N  Not supported  N/A   










