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Thermostat (commercial RTU / heat pump, BACnet MS/TP) · BACnet points list
TCS Basys Controls UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050) BACnet points list
Updated 12 November 2026Unofficial source
Short answer
UbiquiSTAT is a touchscreen thermostat for conventional, heat pump and modulating RTU and zoning applications, with BACnet MS/TP (or TCSbus/Modbus) on RS-485. Appendix A of the product manual lists 244 objects: occupancy schedule and calendar, setpoint pairs, staging, fan, occupancy overrides, sensor inputs and BMS-writable sensor values, relay and analog outputs, economizer, demand ventilation, limits, service status and display settings. A per-model table shows which objects each model has.
This page lists 244 BACnet objects for the TCS Basys Controls UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050) — 202 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from a copy of TCS Basys Controls’s documentation hosted by Kele, not by TCS Basys Controls itself, so treat it as unofficial.
- Manufacturer
- TCS Basys Controls
- Model
- UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050)
- Equipment
- Thermostat (commercial RTU / heat pump, BACnet MS/TP)
- Equipment type
- Heat pumps
- BACnet objects
- 244 (202 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Also known as
- UbiquiSTAT, US4010, US4020, US4040, US4050, TCS UbiquiSTAT, TCS Basys UbiquiSTAT, TCS Basys thermostat
- Source document
- UbiquiSTAT Commercial BACnet Thermostat Product Manual, Appendix A BACnet object list · v0717.2 (unofficial copy, hosted by Kele)
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Reference only, provided as-is: verify against TCS Basys Controls’s current documentation and the live device before use. Not official TCS Basys Controls information. Terms of use.
BMS integration notes: TCS Basys Controls UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050)
Integration in brief
Set the RS-485 mode to BACnet, the MS/TP address and baud rate on the thermostat (device instance defaults to vendor ID 496 combined with the address), then command occupancy with MSV 700 or the schedule SCH 800 and write the setpoints. Read space temperature, system state and the outputs.
Minimum points to map
The short list most integrators start with — enough to run the unit from a BMS. Map more as the job needs.
| Object | Name | Why | Access |
|---|---|---|---|
| MV 700 | Occupancy State | Occupancy command / state | Command |
| MV 1000 | System Mode | System mode (off/auto/heat/cool) | Write |
| AV 71 | Active Cool Setpoint | Active cooling setpoint | Command |
| AV 70 | Active Heat Setpoint | Active heating setpoint | Command |
| MV 1101 | Occupied Fan Mode | Occupied fan mode | Write |
| AV 130 | Space Temperature | Space temperature (BMS can write) | Command |
| MV 1004 | System State | Current heating/cooling state | Read |
| BO 305 | G | Fan output | Write |
| Other 1200 | Service Status | Service and fault bits | Read |
Heartbeat & communication loss
Commands written at priority 10 are relinquished automatically after PIV 401 Command Override Timeout (default 600 s, 0-604800 s); rewrite them before it expires or use another priority.
Sensors & values from the BMS
Space temperature, discharge, outdoor and mixed air temperature, CO2 and RH (AV 130-135) are commandable, so a BMS can supply them; MSV 120-123 choose the source for space temperature, mixed air, CO2 and RH.
Network setup
- BACnet MS/TP default baud 38,400 bps (TCSbus defaults to 9,600).
- Device instance default combines the TCS vendor ID (496) with the network address; set your own unique numbers.
- RS-485 address, baud and mode are also objects (PIV 603, MSV 601, MSV 602).
Watch out for
- Many objects are stored in non-volatile memory (NVM); avoid writing those cyclically.
- Check the model columns: over 40 % of objects exist only on some models.
TCS Basys Controls UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050) BACnet objects
Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.
| Description | States | |||||
|---|---|---|---|---|---|---|
| BV | 803 | External Time Clock | Indicates occupancy mode as determined by some external device | Command | 0=Unoccupied, 1=Occupied | |
| SCH | 800 | Occupancy Schedule | Schedule determining setpoints in active use | Read | ||
| CAL | 801 | Schedule Calendar | Calendar for use by the occupancy schedule | Read | ||
| MV | 40 | Default Setpoint Pair | Setpoint pair used by occupied override and other features | Write | 1=Unocc, 2=Occ A, 3=Occ B, 4=Occ C, 5=Occ D | |
| MV | 41 | Active Setpoint Pair | Active Setpoint Pair | Read | 1=Unoccupied, 2=Occupied A, 3=Occupied B, 4=Occupied C, 5=Occupied D | |
| AVmin | 71 | Active Cool Setpoint | Currently active cool setpoint | °F | Command | |
| AVmin | 70 | Active Heat Setpoint | Currently active heat setpoint | °F | Command | |
| AV | 53 | A Cool Setpoint | A Cool Setpoint | °F | Write | |
| AV | 52 | A Heat Setpoint | A Heat Setpoint | °F | Write | |
| AV | 55 | B Cool Setpoint | B Cool Setpoint | °F | Write | |
| AV | 54 | B Heat Setpoint | B Heat Setpoint | °F | Write | |
| AV | 57 | C Cool Setpoint | C Cool Setpoint | °F | Write | |
| AV | 56 | C Heat Setpoint | C Heat Setpoint | °F | Write | |
| AV | 59 | D Cool Setpoint | D Cool Setpoint | °F | Write | |
| AV | 58 | D Heat Setpoint | D Heat Setpoint | °F | Write | |
| AV | 51 | Unoccupied Cool Setpoint | Unoccupied Cool Setpoint | °F | Write | |
| AV | 50 | Unoccupied Heat Setpoint | Unoccupied Heat Setpoint | °F | Write | |
| AV | 91 | User Setpoint Adjust Limit | User Setpoint Adjust Limit | °F | Write | |
| MV | 94 | User Setpoint Adjust Mode | User Setpoint Adjust Mode | Write | 1=Hold, 2=Timer | |
| PIV | 92 | User Setpoint Adjust Timeout | User Setpoint Adjust Timeout | min | Write | |
| AV | 90 | User Setpoint Adjust | User Setpoint Adjust | °F | Write | |
| PIV | 93 | User Setpoint Adjust Timer | User Setpoint Adjust Timer | s | Read | |
| BV | 950 | Cool Stage 1 Enable | Cool Stage 1 Enable | Write | 0=Disabled, 1=Enabled | |
| AV | 951 | Cool Stage 1 Offset | Cool Stage 1 Offset | °F | Write | |
| AV | 952 | Cool Stage 1 Differential | Cool Stage 1 Differential | °F | Write | |
| PIV | 953 | Cool Stage 1 Next Stage Enable Delay | Delay before next stage is allowed to become active | s | Write | |
| BV | 960 | Cool Stage 2 Enable | Cool Stage 2 Enable [US4020/US4040/US4050 only] | Write | 0=Disabled, 1=Enabled | |
| AV | 961 | Cool Stage 2 Offset | Cool Stage 2 Offset [US4020/US4040/US4050 only] | °F | Write | |
| AV | 962 | Cool Stage 2 Differential | Cool Stage 2 Differential [US4020/US4040/US4050 only] | °F | Write | |
| PIV | 963 | Cool Stage 2 Next Stage Enable Delay | Delay before next stage is allowed to become active [US4020/US4040/US4050 only] | s | Write | |
| BV | 970 | Cool Stage 3 Enable | Cool Stage 3 Enable [US4020/US4040/US4050 only] | Write | 0=Disabled, 1=Enabled | |
| AV | 971 | Cool Stage 3 Offset | Cool Stage 3 Offset [US4020/US4040/US4050 only] | °F | Write | |
| AV | 972 | Cool Stage 3 Differential | Cool Stage 3 Differential [US4020/US4040/US4050 only] | °F | Write | |
| PIV | 973 | Cool Stage 3 Next Stage Enable Delay | Delay before next stage is allowed to become active [US4020/US4040/US4050 only] | s | Write | |
| BV | 980 | Cool Stage 4 Enable | Cool Stage 4 Enable [US4020/US4040/US4050 only] | Write | 0=Disabled, 1=Enabled | |
| AV | 981 | Cool Stage 4 Offset | Cool Stage 4 Offset [US4020/US4040/US4050 only] | °F | Write | |
| AV | 982 | Cool Stage 4 Differential | Cool Stage 4 Differential [US4020/US4040/US4050 only] | °F | Write | |
| PIV | 983 | Cool Stage 4 Next Stage Enable Delay | Delay before next stage is allowed to become active [US4020/US4040/US4050 only] | s | Write | |
| BV | 900 | Heat Stage 1 Enable | Heat Stage 1 Enable | Write | 0=Disabled, 1=Enabled | |
| AV | 901 | Heat Stage 1 Offset | Heat Stage 1 Offset | °F | Write | |
| AV | 902 | Heat Stage 1 Differential | Heat Stage 1 Differential | °F | Write | |
| PIV | 903 | Heat Stage 1 Next Stage Enable Delay | Delay before next stage is allowed to become active | s | Write | |
| BV | 910 | Heat Stage 2 Enable | Heat Stage 2 Enable | Write | 0=Disabled, 1=Enabled | |
| AV | 911 | Heat Stage 2 Offset | Heat Stage 2 Offset | °F | Write | |
| AV | 912 | Heat Stage 2 Differential | Heat Stage 2 Differential | °F | Write | |
| PIV | 913 | Heat Stage 2 Next Stage Enable Delay | Delay before next stage is allowed to become active | s | Write | |
| BV | 920 | Heat Stage 3 Enable | Heat Stage 3 Enable [US4020/US4040/US4050 only] | Write | 0=Disabled, 1=Enabled | |
| AV | 921 | Heat Stage 3 Offset | Heat Stage 3 Offset [US4020/US4040/US4050 only] | °F | Write | |
| AV | 922 | Heat Stage 3 Differential | Heat Stage 3 Differential [US4020/US4040/US4050 only] | °F | Write | |
| PIV | 923 | Heat Stage 3 Next Stage Enable Delay | Delay before next stage is allowed to become active [US4020/US4040/US4050 only] | s | Write | |
| BV | 930 | Heat Stage 4 Enable | Heat Stage 4 Enable [US4020/US4040/US4050 only] | Write | 0=Disabled, 1=Enabled | |
| AV | 931 | Heat Stage 4 Offset | Heat Stage 4 Offset [US4020/US4040/US4050 only] | °F | Write | |
| AV | 932 | Heat Stage 4 Differential | Heat Stage 4 Differential [US4020/US4040/US4050 only] | °F | Write | |
| PIV | 933 | Heat Stage 4 Next Stage Enable Delay | Delay before next stage is allowed to become active [US4020/US4040/US4050 only] | s | Write | |
| AV | 1003 | Cool Error | Amount of cooling needed. A value of 0 indicates cooling satisfi ed | °F | Read | |
| AV | 1002 | Heat Error | Amount of heating needed. A value of 0 indicates heating satisfi ed | °F | Read | |
| BV | 850 | P+I Enable | Enables P+I feature on relay stage control | Write | 0=Disabled, 1=Enabled | |
| PIV | 851 | P+I Rate | Rate of the I component in Seconds/Degree, decrease for faster response | s | Write | |
| AV | 820 | Smart Recovery Cool Rate | Smart Recovery cooling setpoint ramp rate, degrees/hour | °F | Write | |
| AV | 821 | Smart Recovery Heat Rate | Smart Recovery heating setpoint ramp rate, degrees/hour | °F | Write | |
| AV | 822 | Smart Recovery Cool Delta | Current adjustment applied to cooling by Smart Recovery | °F | Read | |
| AV | 823 | Smart Recovery Heat Delta | Current adjustment applied to heating by Smart Recovery | °F | Read | |
| BV | 824 | Smart Recovery A Enable | Smart Recovery A Enable | Write | 0=Disabled, 1=Enabled | |
| BV | 825 | Smart Recovery B Enable | Smart Recovery B Enable | Write | 0=Disabled, 1=Enabled | |
| BV | 826 | Smart Recovery C Enable | Smart Recovery C Enable | Write | 0=Disabled, 1=Enabled | |
| BV | 827 | Smart Recovery D Enable | Smart Recovery D Enable | Write | 0=Disabled, 1=Enabled | |
| MV | 1100 | Active Fan Mode | Active Fan Mode | Read | 1=Auto, 2=On, 3=Cool, 4=Auto + Re-circ | |
| MVmin | 1101 | Occupied Fan Mode | Occupied Fan Mode | Write | 1=Auto, 2=On, 3=Cool, 4=Auto + Re-circ | |
| MV | 1102 | Unoccupied Fan Mode | Unoccupied Fan Mode | Write | 1=Auto, 2=On, 3=Cool, 4=Auto + Re-circ | |
| PIV | 1105 | Fan Post-Conditioning Runtime for Heat | How long the fan runs after all heat stages become inactive | s | Write | |
| PIV | 1106 | Fan Post-Conditioning Runtime for Cool | How long the fan runs after all cool stages become inactive | s | Write | |
| BV | 1110 | Fan Proving Input Status | Fan Proving Input Status | Command | 0=Inactive, 1=Active | |
| BV | 1111 | Fan Proving Failure Status | Fan proving failure; write inactive to reset | Write | 0=Ok, 1=Failed | |
| PIV | 1112 | Fan Proving Delay | Delay after fan is activated before proving is performed | s | Write | |
| PIV | 1113 | Fan Proving Recovery Attempts | Fan Proving Recovery Attempts | Write | ||
| PIV | 1114 | Fan Proving Recovery Delay | Delay between each recovery attempt after a proving failure | s | Write | |
| PIV | 1115 | Fan Recirc Period | Period over which the recirculation is calculated | min | Write | |
| PIV | 1116 | Fan Recirc Occupied Percentage | Minimum duty cycle for fan recirculation when occupied | % | Write | |
| PIV | 1117 | Fan Recirc Unoccupied Percentage | Minimum duty cycle for fan recirculation when unoccupied | % | Write | |
| MV | 1001 | Thermostat Type | Thermostat Type | Write | 1=Conventional, 2=Heat Pump | |
| MVmin | 1000 | System Mode | System Mode | Write | 1=Off, 2=Auto, 3=Heat, 4=Cool, 5=Emergency Heat, 6=Off + Fan Recirc | |
| PIV | 1010 | Power-Up Delay | Delay after power-up before any control is performed | s | Write | |
| PIV | 1011 | Reversing Valve Delay | Delay between reversing valve changing state and compressor running | s | Write | |
| MVmin | 1004 | System State | System State | Read | 1=System Off, 2=Disabled, 3=Idle, 4=Heating, 5=Cooling, 6=Heating Lockout, 7=Cooling Lockout | |
| MVmin | 700 | Occupancy State | Occupancy State | Command | 1=Unoccupied, 2=Occupied | |
| MV | 701 | Occupancy Override Mode | Allows user to override occupancy state | Write | 1=Disabled, 2=Enabled, 3=Unoccupied Only | |
| PIV | 703 | Occupancy State Override Time | Duration of timed occupancy state override | min | Write | |
| PIV | 704 | Occupied Transition Delay | Delay before scheduled transition to occupied occupancy state | s | Write | |
| MV | 705 | Occupancy Override State | Occupancy Override State | Read | 1=OFF, 2=ON (Timed), 3=ON (Hold) | |
| PIV | 706 | Occupancy Override Timer | Time remaining when override timer is active | s | Read | |
| BV | 707 | Momentary Occupancy Override | Momentary Occupancy Override | Command | 0=Inactive, 1=Active | |
| BV | 708 | External Occupancy Override | Continuous override to occupied occupancy state | Command | 0=Inactive, 1=Active | |
| AI | 100 | Internal Sensor Input | Built-in temperature input, includes user calibration | °F | Read | |
| AV | 110 | Internal Sensor User Calibration | Built-in temperature user calibration | °F | Write | |
| AI | 101 | T1 RTD Input | T1 terminal RTD temperature input, includes user calibration | °F | Read | |
| AV | 111 | T1 RTD User Calibration | T1 RTD User Calibration | °F | Write | |
| AI | 102 | T2 RTD Input | T2 terminal RTD temperature input, includes user calibration | °F | Read | |
| AV | 112 | T2 RTD User Calibration | T2 RTD User Calibration | °F | Write | |
| AI | 103 | T3 RTD Input | T3 terminal RTD temperature input, includes user calibration | °F | Read | |
| AV | 113 | T3 RTD User Calibration | T3 RTD User Calibration | °F | Write | |
| AI | 151 | AI1 | Analog Input 1 [US4040/US4050 only] | mA | Read | |
| MV | 170 | AI1 Input Range | AI1 Input Range [US4040/US4050 only] | Write | 1=4 - 20 mA, 2=0 - 20 mA | |
| AV | 161 | AI1 Scaled Min | AI1 Scaled Min [US4040/US4050 only] | Write | ||
| AV | 162 | AI1 Scaled Max | AI1 Scaled Max [US4040/US4050 only] | Write | ||
| AV | 181 | AI1 Scaled | Analog Input 1 in engineering units [US4040/US4050 only] | % | Read | |
| AI | 152 | AI2 | Analog Input 2 [US4050 only] | mA | Read | |
| MV | 171 | AI2 Input Range | AI2 Input Range [US4050 only] | Write | 1=4 - 20 mA, 2=0 - 20 mA | |
| AV | 163 | AI2 Scaled Min | AI2 Scaled Min [US4050 only] | Write | ||
| AV | 164 | AI2 Scaled Max | AI2 Scaled Max [US4050 only] | Write | ||
| AV | 182 | AI2 Scaled | Analog Input 2 in engineering units [US4050 only] | % | Read | |
| MV | 120 | Space Temperature Source | Space Temperature Source | Write | 1=Internal Temperature, 2=T1, 3=T1 & Internal Temp. Averaging | |
| AV | 129 | Space Temperature Averaging Weight | Weight given to the Internal Temperature when averaging | % | Write | |
| MV | 121 | Mixed Air Temperature Source | Mixed Air Temperature Source [US4040/US4050 only] | Write | 1=None, 2=T1 | |
| MV | 122 | Space Carbon Dioxide Source | Space Carbon Dioxide Source [US4040/US4050 only] | Write | 1=None, 2=AI1, 3=AI2 | |
| MV | 123 | Space Relative Humidity Source | Space Relative Humidity Source [US4050 only] | Write | 1=None, 2=AI1, 3=AI2 | |
| AVmin | 130 | Space Temperature | Space Temperature | °F | Command | |
| AV | 131 | Discharge Air Temperature | Discharge Air Temperature | °F | Command | |
| AV | 132 | Outdoor Air Temperature | Outdoor Air Temperature | °F | Command | |
| AV | 133 | Mixed Air Temperature | Mixed Air Temperature [US4040/US4050 only] | °F | Command | |
| AV | 134 | Space Carbon Dioxide | Space Carbon Dioxide [US4040/US4050 only] | ppm | Command | |
| AV | 135 | Space Relative Humidity | Space Relative Humidity [US4050 only] | %RH | Command | |
| BI | 251 | DI1 | Digital Input 1 | Read | 0=Off, 1=On | |
| MV | 261 | DI1 Mode | Digital Input 1 Mode | Write | 1=Monitor, 2=Filter Service, 3=Service, 4=Fan Proving, 5=Economizer Enable, 6=AquaStat, 7=Momentary Occupancy Override, 8=External Occupancy Override, 9=External Time Clock, 10=Setpoint Setback | |
| BI | 252 | DI2 | Digital Input 2 | Read | 0=Off, 1=On | |
| MV | 262 | DI2 Mode | Digital Input 2 Mode | Write | 1=Monitor, 2=Filter Service, 3=Service, 4=Fan Proving, 5=Economizer Enable, 6=AquaStat, 7=Momentary Occupancy Override, 8=External Occupancy Override, 9=External Time Clock, 10=Setpoint Setback | |
| BI | 253 | DI3 | Digital Input 3 | Read | 0=Off, 1=On | |
| MV | 263 | DI3 Mode | Digital Input 3 Mode | Write | 1=Monitor, 2=Filter Service, 3=Service, 4=Fan Proving, 5=Economizer Enable, 6=AquaStat, 7=Momentary Occupancy Override, 8=External Occupancy Override, 9=External Time Clock, 10=Setpoint Setback | |
| BO | 301 | W1 | Heat 1 / Auxiliary Heat 1 relay | Write | 0=Off, 1=On | |
| BO | 302 | W2 | Heat 2 / Auxiliary Heat 2 relay [US4020/US4040/US4050 only] | Write | 0=Off, 1=On | |
| BO | 303 | Y1 | Cool 1 / Compressor 1 relay | Write | 0=Off, 1=On | |
| BO | 304 | Y2 | Cool 2 / Compressor 2 relay [US4020/US4040/US4050 only] | Write | 0=Off, 1=On | |
| BOmin | 305 | G | Fan relay | Write | 0=Off, 1=On | |
| BO | 306 | B/O | Heat pump reversing valve relay, additional stages | Write | 0=Off, 1=On | |
| MV | 316 | B/O Mode | B/O relay mode | Write | 1=Off, 2=Reversing Valve, 3=Heat Stage 3, 4=Cool Stage 3, 5=Heat Stage 4, 6=Cool Stage 4 | |
| BO | 307 | TC | Time clock output relay, additional stages | Write | 0=Off, 1=On | |
| MV | 317 | TC Mode | TC relay mode | Write | 1=Off, 2=Time Clock, 3=Heat Stage 3, 4=Cool Stage 3, 5=Heat Stage 4, 6=Cool Stage 4 | |
| AO | 200 | AO1 | Analog Output 1 [US4010/US4040/US4050 only] | mA | Write | |
| AV | 240 | AO1 Percentage | Analog Output 1 percentage [US4010/US4040/US4050 only] | % | Command | |
| MV | 210 | AO1 Mode | Analog Output 1 mode [US4010/US4040/US4050 only] | Write | 1=Off, 2=Heat/Cool/Aquastat, 3=OA Damper, 4=Midpoint | |
| MV | 220 | AO1 Action | Analog Output 1 action [US4010/US4040/US4050 only] | Write | 1=Direct, 2=Reverse | |
| MV | 230 | AO1 Range | Analog Output 1 range [US4010/US4040/US4050 only] | Write | 1=4 - 20 mA, 2=0 - 20 mA | |
| AO | 201 | AO2 | Analog Output 2 [US4010/US4050 only] | mA | Write | |
| AV | 241 | AO2 Percentage | Analog Output 2 percentage [US4010/US4050 only] | % | Command | |
| MV | 211 | AO2 Mode | Analog Output 2 mode [US4010/US4050 only] | Write | 1=Off, 2=Heat/Cool/Aquastat, 3=OA Damper, 4=Midpoint | |
| MV | 221 | AO2 Action | Analog Output 2 action [US4010/US4050 only] | Write | 1=Direct, 2=Reverse | |
| MV | 231 | AO2 Range | Analog Output 2 range [US4010/US4050 only] | Write | 1=4 - 20 mA, 2=0 - 20 mA | |
| MV | 1400 | AO1 H/C/A Mode | Analog Output 1 Heat/ Cool/Aquastat Mode [US4010/US4050 only] | Write | 1=Heat, 2=Cool, 3=Aquastat | |
| AV | 1410 | AO1 H/C/A Min Position | Analog Output 1 Heat/ Cool/Aquastat minimum position [US4010/US4050 only] | % | Write | |
| AV | 1420 | AO1 H/C/A Max Position | Analog Output 1 Heat/Cool/Aquastat maximum position [US4010/US4050 only] | % | Write | |
| MV | 1430 | AO1 H/C/A Unoccupied Mode | Analog Output 1 Heat/Cool/Aquastat unoccupied mode [US4010/US4040/US4050 only] | Write | 1=Modulate, 2=Fixed | |
| AV | 1440 | AO1 H/C/A Unoccupied Fixed Output | Analog Output 1 Heat/Cool/Aquastat unoccupied fi xed output [US4010/US4040/US4050 only] | % | Write | |
| MV | 1401 | AO2 H/C/A Mode | Analog Output 2 Heat/ Cool/Aquastat Mode [US4010/US4050 only] | Write | 1=Heat, 2=Cool, 3=Aquastat | |
| AV | 1411 | AO2 H/C/A Min Position | Analog Output 2 Heat/ Cool/Aquastat minimum position [US4010/US4050 only] | % | Write | |
| AV | 1421 | AO2 H/C/A Max Position | Analog Output 2 Heat/Cool/Aquastat maximum position [US4010/US4050 only] | % | Write | |
| MV | 1431 | AO2 H/C/A Unoccupied Mode | Analog Output 2 Heat/Cool/Aquastat unoccupied mode [US4010/US4050 only] | Write | 1=Modulate, 2=Fixed | |
| AV | 1441 | AO2 H/C/A Unoccupied Fixed Output | Analog Output 2 Heat/Cool/Aquastat unoccupied fi xed output [US4010/US4050 only] | % | Write | |
| MV | 1450 | Aquastat Mode | Aquastat method for determining whether to heat or cool [US4010/US4050 only] | Write | 1=Analog, 2=Digital | |
| AV | 1451 | Aquastat Analog Setpoint | Setpoint used by analog aquastat mode [US4010/US4050 only] | °F | Write | |
| BV | 1452 | Aquastat Digital Control | Aquastat Digital Control [US4010/US4050 only] | Command | 0=Cool, 1=Heat | |
| AV | 1600 | Heat Analog Output | Heat Analog Output [US4010/US4050 only] | % | Read | |
| AV | 1601 | Cool Analog Output | Cool Analog Output [US4010/US4050 only] | % | Read | |
| AV | 1610 | Heat Prop Band | Proportional band for modulating heat [US4010/US4050 only] | °F | Write | |
| AV | 1611 | Cool Prop Band | Proportional band for modulating cool [US4010/US4050 only] | °F | Write | |
| AV | 1602 | AO Heat Setpoint Offset | Offset subtracted from the heat setpoint for modulating control [US4010/US4050 only] | °F | Write | |
| AV | 1603 | AO Cool Setpoint Offset | Offset added to the cool setpoint for modulating control [US4010/US4050 only] | °F | Write | |
| BV | 1604 | Heat Discharge Reset Enable | Heat Discharge Reset Enable [US4010/US4050 only] | Write | 0=Disabled, 1=Enabled | |
| AV | 1606 | Heat Discharge Reset Ratio | Heat Discharge Reset Ratio [US4010/US4050 only] | Write | ||
| AV | 1608 | Heat Discharge Reset Base Setpoint | Heat Discharge Reset Base Setpoint [US4010/US4050 only] | °F | Write | |
| AV | 1612 | Heat Discharge Reset Active Setpoint | Heat Discharge Reset Active Setpoint [US4010/US4050 only] | °F | Read | |
| BV | 1605 | Cool Discharge Reset Enable | Cool Discharge Reset Enable [US4010/US4050 only] | Write | 0=Disabled, 1=Enabled | |
| AV | 1607 | Cool Discharge Reset Ratio | Cool Discharge Reset Ratio [US4010/US4050 only] | Write | ||
| AV | 1609 | Cool Discharge Reset Base Setpoint | Cool Discharge Reset Base Setpoint [US4010/US4050 only] | °F | Write | |
| AV | 1613 | Cool Discharge Reset Active Setpoint | Cool Discharge Reset Active Setpoint [US4010/US4050 only] | °F | Read | |
| MV | 1622 | Heat Discharge Tempering Mode | Heat Discharge Tempering Mode [US4010/US4050 only] | Write | 1=Off, 2=On, 3=Occupied Only | |
| AV | 1620 | Heat Discharge Tempering Setpoint | Heat Discharge Tempering Setpoint [US4010/US4050 only] | °F | Write | |
| AV | 1624 | Heat Discharge Tempering Prop Band | Proportional band for heat discharge tempering [US4010/US4050 only] | °F | Write | |
| AV | 1626 | Heat Discharge Tempering Output | Heat Discharge Tempering Output [US4010/US4050 only] | % | Read | |
| MV | 1623 | Cool Discharge Tempering Mode | Cool Discharge Tempering Mode [US4010/US4050 only] | Write | 1=Off, 2=On, 3=Occupied Only | |
| AV | 1621 | Cool Discharge Tempering Setpoint | Cool Discharge Tempering Setpoint [US4010/US4050 only] | °F | Write | |
| AV | 1625 | Cool Discharge Tempering Prop Band | Proportional band used by cool discharge tempering [US4010/US4050 only] | °F | Write | |
| AV | 1627 | Cool Discharge Tempering Output | Cool Discharge Tempering Output [US4010/US4050 only] | % | Read | |
| AV | 1500 | Outdoor Damper Min Position | Outdoor Damper Min Position [US4040/US4050 only] | % | Write | |
| MV | 1501 | Outdoor Damper Control Source | Outdoor Damper Control Source [US4040/US4050 only] | Write | 1=Discharge Air, 2=Mixed Air | |
| AV | 1510 | Economizer Output | Economizer Output [US4040/US4050 only] | % | Read | |
| MV | 1511 | Economizer Mode | Determines when economizer is activated [US4040/US4050 only] | Write | 1=Off, 2=Digital Input, 3=Drybulb Setpoint, 4=Drybulb Compare | |
| AV | 1512 | Economizer Setpoint | Economizer Setpoint [US4040/US4050 only] | °F | Write | |
| AV | 1513 | Economizer Prop Band | Proportional band for economizer [US4040/US4050 only] | °F | Write | |
| AV | 1514 | Economizer OA Drybulb Setpoint | Economizer Outdoor Drybulb Setpoint [US4040/US4050 only] | °F | Write | |
| AV | 1515 | Economizer OA Drybulb Compare Delta | Difference between outdoor and space temperature before economizer is activated [US4040/US4050 only] | °F | Write | |
| BV | 1516 | Economizer Unoccupied Enable | Economizer Unoccupied Enable [US4040/US4050 only] | Write | 0=Disabled, 1=Enabled | |
| BV | 1517 | Economizer DI Enable | Economizer enable for Digital Input economizer mode [US4040/US4050 only] | Command | 0=Disabled, 1=Enabled | |
| BV | 1518 | Economizer Free Cooling Available | Indicates economizer can provide cooling [US4040/US4050 only] | Read | 0=False, 1=True | |
| BV | 1519 | Economizer Enabled | Indicates economizer is currently providing cooling [US4040/US4050 only] | Read | 0=False, 1=True | |
| AV | 1530 | Demand Ventilation Output | Demand Ventilation Output [US4040/US4050 only] | % | Read | |
| BV | 1531 | Demand Ventilation Enable | Demand Ventilation Enable [US4040/US4050 only] | Write | 0=Disabled, 1=Enabled | |
| AV | 1532 | Demand Ventilation Setpoint | Demand ventilation CO2 setpoint [US4040/US4050 only] | ppm | Write | |
| AV | 1533 | Demand Ventilation Prop Band | Demand ventilation CO2 proportional band [US4040/US4050 only] | ppm | Write | |
| BV | 1534 | Demand Ventilation LL Override Enable | Allows demand ventilation to override discharge air low limit [US4040/US4050 only] | Write | 0=Disabled, 1=Enabled | |
| AV | 1540 | OA Damper Discharge Air LL Output | OA Damper Discharge Air Low Limit Output [US4040/US4050 only] | % | Read | |
| BV | 1541 | OA Damper Discharge Air LL Enable | OA Damper Discharge Air Low Limit Enable [US4040/US4050 only] | Write | 0=Disabled, 1=Enabled | |
| AV | 1542 | OA Damper Discharge Air LL Setpoint | Setpoint at which the OA damper is fully closed [US4040/US4050 only] | °F | Write | |
| AV | 1550 | Pre-occ Purge Output | Pre-occupancy Purge Output [US4040/US4050 only] | % | Read | |
| BV | 1551 | Pre-occ Purge Enable | Pre-occupancy Purge Enable [US4040/US4050 only] | Write | 0=Disabled, 1=Enabled | |
| AV | 1552 | Pre-occ Purge OA Damper Position | Pre-occupancy Purge OA Damper Position [US4040/US4050 only] | % | Write | |
| PIV | 1553 | Pre-occ Purge Duration | Duration prior to occupied occupancy state when feature is active [US4040/US4050 only] | min | Write | |
| AV | 1700 | Midpoint Bias | Percent of output allocated to heating for midpoint control. [US4010/US4050 only] | % | Write | |
| Other | 1120 | Limit and Lockout Status | Limit and Lockout Status | Read | Bits: (1) OA Lockout Heat, (2) OA Lockout Cool, (3) DA Limit Heat, (4) DA Limit Cool, (5) LL Changeover | |
| BV | 1130 | Outdoor Air Lockout Enable | Outdoor Air Lockout Enable | Write | 0=Disabled, 1=Enabled | |
| AV | 1132 | Outdoor Air Lockout Cool Setpoint | Mechanical cooling is not allowed when outdoor air is below this value | °F | Write | |
| AV | 1131 | Outdoor Air Lockout Heat Setpoint | Heating is not allowed when outdoor air is above this value | °F | Write | |
| BV | 1140 | Discharge Air Limit Enable | Discharge Air Limit Enable | Write | 0=Disabled, 1=Enabled | |
| AV | 1142 | Discharge Air Limit Cool Setpoint | Cooling is not allowed when discharge air is below this value | °F | Write | |
| AV | 1141 | Discharge Air Limit Heat Setpoint | Heating is not allowed when discharge air is above this value | °F | Write | |
| BV | 1150 | Low Limit Changeover Enable | Outdoor air low limit changeover enable (heat pump only) | Write | 0=Disabled, 1=Enabled | |
| AV | 1151 | Low Limit Changeover Setpoint | Compressors are disabled below this outdoor air setpoint (heat pump only) | °F | Write | |
| BV | 1250 | DI Setpoint Setback State | DI Setpoint Setback State | Command | 0=Inactive, 1=Active | |
| BV | 1251 | DI Setpoint Setback Input | DI Setpoint Setback Input | Command | 0=Inactive, 1=Active | |
| PIV | 1252 | DI Setpoint Setback Start Delay | Duration setback input must remain active before setback state becomes active | s | Write | |
| PIV | 1253 | DI Setpoint Setback Minimum On Time | DI Setpoint Setback Minimum On Time | s | Write | |
| AV | 1254 | DI Setpoint Setback Value | Amount to setback the heating and cooling setpoints | °F | Write | |
| Othermin | 1200 | Service Status | Service Status | Read | Bits: (1) Check Filter, (2) Fan Proving Failure, (3) Discharge Limit Low, (4) Discharge Limit High, (5) DI1 Service, (6) DI2 Service, (7) DI3 Service | |
| CSV | 1210 | DI1 Service Status Custom Message | DI1 Service Status Custom Message | Write | ||
| CSV | 1211 | DI2 Service Status Custom Message | DI2 Service Status Custom Message | Write | ||
| CSV | 1212 | DI3 Service Status Custom Message | DI3 Service Status Custom Message | Write | ||
| PIV | 401 | Command Override Timeout | Commands at priority 10 are automatically relinquished after this time | s | Write | |
| BV | 802 | Daylight Saving Time Enable | Daylight Saving Time Enable | Write | 0=Disabled, 1=Enabled | |
| PIV | 603 | RS-485 Address | RS-485 Address | Write | ||
| MV | 601 | RS-485 Baud Rate | RS-485 Baud Rate | Write | 1=9,600, 2=19,200, 3=38,400, 4=57,600, 5=76,800, 6=115,200 | |
| MV | 602 | RS-485 Mode | Communication protocol used on the RS- 485 bus | Write | 1=TCSbus, 2=BACnet MS/TP | |
| BV | 1800 | Residential Mode Enable | Residential Mode Enable | Write | 0=Disabled, 1=Enabled | |
| MV | 1801 | Residential Mode Setpoint Source | Residential Mode Setpoint Source | Write | 1=Schedule, 2=Hold | |
| AV | 1802 | Residential Mode Hold Heat Setpoint | Residential Mode Hold Heat Setpoint | °F | Write | |
| AV | 1803 | Residential Mode Hold Cool Setpoint | Residential Mode Hold Cool Setpoint | °F | Write | |
| PIV | 501 | User Access Code | Access code for changes at the thermostat (0 = none) | Write | ||
| MV | 502 | Display Clock Format (12/24 hour) | Time format shown on local display | Write | 1=12 Hour, 2=24 Hour | |
| MV | 503 | Display Units (F/C) | Temperature units on local display | Write | 1=Fahrenheit, 2=Celsius | |
| MV | 504 | Display Brightness | Backlight brightness on local display | Write | 1=Low, 2=Medium, 3=High | |
| MV | 505 | Display Banner Mode | Information shown in top-right corner of local display | Write | 1=Date & Time and Name, 2=Date & Time Only | |
| CSV | 506 | Display Info Text | Optional text shown on local display. Automatically cleared after Command Timeout | Write | ||
| FILE | 1300 | Firmware Upgrade File | Firmware Upgrade File | Read | ||
| FILE | 1301 | Factory Settings File | Factory Settings File | Read | ||
| FILE | 1302 | User Settings File | User settings for backup and restore | Read | ||
| FILE | 1303 | Operation Statistics File | Operation Statistics File | Read | ||
| FILE | 1320 | Diagnostic Log File | Diagnostic Log File | Read |
No points match these filters.
Object ID lookup: TCS Basys Controls UbiquiSTAT commercial BACnet thermostat point IDs by name
BV803External Time ClockSCH800Occupancy ScheduleCAL801Schedule CalendarMV40Default Setpoint PairMV41Active Setpoint PairAV71Active Cool SetpointAV70Active Heat SetpointAV53A Cool SetpointAV52A Heat SetpointAV55B Cool SetpointAV54B Heat SetpointAV57C Cool SetpointAV56C Heat SetpointAV59D Cool SetpointAV58D Heat SetpointAV51Unoccupied Cool SetpointAV50Unoccupied Heat SetpointAV91User Setpoint Adjust LimitMV94User Setpoint Adjust ModePIV92User Setpoint Adjust TimeoutAV90User Setpoint AdjustPIV93User Setpoint Adjust TimerBV950Cool Stage 1 EnableAV951Cool Stage 1 OffsetAV952Cool Stage 1 DifferentialPIV953Cool Stage 1 Next Stage Enable DelayBV960Cool Stage 2 EnableAV961Cool Stage 2 OffsetAV962Cool Stage 2 DifferentialPIV963Cool Stage 2 Next Stage Enable DelayBV970Cool Stage 3 EnableAV971Cool Stage 3 OffsetAV972Cool Stage 3 DifferentialPIV973Cool Stage 3 Next Stage Enable DelayBV980Cool Stage 4 EnableAV981Cool Stage 4 OffsetAV982Cool Stage 4 DifferentialPIV983Cool Stage 4 Next Stage Enable DelayBV900Heat Stage 1 EnableAV901Heat Stage 1 OffsetAV902Heat Stage 1 DifferentialPIV903Heat Stage 1 Next Stage Enable DelayBV910Heat Stage 2 EnableAV911Heat Stage 2 OffsetAV912Heat Stage 2 DifferentialPIV913Heat Stage 2 Next Stage Enable DelayBV920Heat Stage 3 EnableAV921Heat Stage 3 OffsetAV922Heat Stage 3 DifferentialPIV923Heat Stage 3 Next Stage Enable DelayBV930Heat Stage 4 EnableAV931Heat Stage 4 OffsetAV932Heat Stage 4 DifferentialPIV933Heat Stage 4 Next Stage Enable DelayAV1003Cool ErrorAV1002Heat ErrorBV850P+I EnablePIV851P+I RateAV820Smart Recovery Cool RateAV821Smart Recovery Heat RateAV822Smart Recovery Cool DeltaAV823Smart Recovery Heat DeltaBV824Smart Recovery A EnableBV825Smart Recovery B EnableBV826Smart Recovery C EnableBV827Smart Recovery D EnableMV1100Active Fan ModeMV1101Occupied Fan ModeMV1102Unoccupied Fan ModePIV1105Fan Post-Conditioning Runtime for HeatPIV1106Fan Post-Conditioning Runtime for CoolBV1110Fan Proving Input StatusBV1111Fan Proving Failure StatusPIV1112Fan Proving DelayPIV1113Fan Proving Recovery AttemptsPIV1114Fan Proving Recovery DelayPIV1115Fan Recirc PeriodPIV1116Fan Recirc Occupied PercentagePIV1117Fan Recirc Unoccupied PercentageMV1001Thermostat TypeMV1000System ModePIV1010Power-Up DelayPIV1011Reversing Valve DelayMV1004System StateMV700Occupancy StateMV701Occupancy Override ModePIV703Occupancy State Override TimePIV704Occupied Transition DelayMV705Occupancy Override StatePIV706Occupancy Override TimerBV707Momentary Occupancy OverrideBV708External Occupancy OverrideAI100Internal Sensor InputAV110Internal Sensor User CalibrationAI101T1 RTD InputAV111T1 RTD User CalibrationAI102T2 RTD InputAV112T2 RTD User CalibrationAI103T3 RTD InputAV113T3 RTD User CalibrationAI151AI1MV170AI1 Input RangeAV161AI1 Scaled MinAV162AI1 Scaled MaxAV181AI1 ScaledAI152AI2MV171AI2 Input RangeAV163AI2 Scaled MinAV164AI2 Scaled MaxAV182AI2 ScaledMV120Space Temperature SourceAV129Space Temperature Averaging WeightMV121Mixed Air Temperature SourceMV122Space Carbon Dioxide SourceMV123Space Relative Humidity SourceAV130Space TemperatureAV131Discharge Air TemperatureAV132Outdoor Air TemperatureAV133Mixed Air TemperatureAV134Space Carbon DioxideAV135Space Relative HumidityBI251DI1MV261DI1 ModeBI252DI2MV262DI2 ModeBI253DI3MV263DI3 ModeBO301W1BO302W2BO303Y1BO304Y2BO305GBO306B/OMV316B/O ModeBO307TCMV317TC ModeAO200AO1AV240AO1 PercentageMV210AO1 ModeMV220AO1 ActionMV230AO1 RangeAO201AO2AV241AO2 PercentageMV211AO2 ModeMV221AO2 ActionMV231AO2 RangeMV1400AO1 H/C/A ModeAV1410AO1 H/C/A Min PositionAV1420AO1 H/C/A Max PositionMV1430AO1 H/C/A Unoccupied ModeAV1440AO1 H/C/A Unoccupied Fixed OutputMV1401AO2 H/C/A ModeAV1411AO2 H/C/A Min PositionAV1421AO2 H/C/A Max PositionMV1431AO2 H/C/A Unoccupied ModeAV1441AO2 H/C/A Unoccupied Fixed OutputMV1450Aquastat ModeAV1451Aquastat Analog SetpointBV1452Aquastat Digital ControlAV1600Heat Analog OutputAV1601Cool Analog OutputAV1610Heat Prop BandAV1611Cool Prop BandAV1602AO Heat Setpoint OffsetAV1603AO Cool Setpoint OffsetBV1604Heat Discharge Reset EnableAV1606Heat Discharge Reset RatioAV1608Heat Discharge Reset Base SetpointAV1612Heat Discharge Reset Active SetpointBV1605Cool Discharge Reset EnableAV1607Cool Discharge Reset RatioAV1609Cool Discharge Reset Base SetpointAV1613Cool Discharge Reset Active SetpointMV1622Heat Discharge Tempering ModeAV1620Heat Discharge Tempering SetpointAV1624Heat Discharge Tempering Prop BandAV1626Heat Discharge Tempering OutputMV1623Cool Discharge Tempering ModeAV1621Cool Discharge Tempering SetpointAV1625Cool Discharge Tempering Prop BandAV1627Cool Discharge Tempering OutputAV1500Outdoor Damper Min PositionMV1501Outdoor Damper Control SourceAV1510Economizer OutputMV1511Economizer ModeAV1512Economizer SetpointAV1513Economizer Prop BandAV1514Economizer OA Drybulb SetpointAV1515Economizer OA Drybulb Compare DeltaBV1516Economizer Unoccupied EnableBV1517Economizer DI EnableBV1518Economizer Free Cooling AvailableBV1519Economizer EnabledAV1530Demand Ventilation OutputBV1531Demand Ventilation EnableAV1532Demand Ventilation SetpointAV1533Demand Ventilation Prop BandBV1534Demand Ventilation LL Override EnableAV1540OA Damper Discharge Air LL OutputBV1541OA Damper Discharge Air LL EnableAV1542OA Damper Discharge Air LL SetpointAV1550Pre-occ Purge OutputBV1551Pre-occ Purge EnableAV1552Pre-occ Purge OA Damper PositionPIV1553Pre-occ Purge DurationAV1700Midpoint BiasBV1130Outdoor Air Lockout EnableAV1132Outdoor Air Lockout Cool SetpointAV1131Outdoor Air Lockout Heat SetpointBV1140Discharge Air Limit EnableAV1142Discharge Air Limit Cool SetpointAV1141Discharge Air Limit Heat SetpointBV1150Low Limit Changeover EnableAV1151Low Limit Changeover SetpointBV1250DI Setpoint Setback StateBV1251DI Setpoint Setback InputPIV1252DI Setpoint Setback Start DelayPIV1253DI Setpoint Setback Minimum On TimeAV1254DI Setpoint Setback ValueCSV1210DI1 Service Status Custom MessageCSV1211DI2 Service Status Custom MessageCSV1212DI3 Service Status Custom MessagePIV401Command Override TimeoutBV802Daylight Saving Time EnablePIV603RS-485 AddressMV601RS-485 Baud RateMV602RS-485 ModeBV1800Residential Mode EnableMV1801Residential Mode Setpoint SourceAV1802Residential Mode Hold Heat SetpointAV1803Residential Mode Hold Cool SetpointPIV501User Access CodeMV502Display Clock Format (12/24 hour)MV503Display Units (F/C)MV504Display BrightnessMV505Display Banner ModeCSV506Display Info TextFILE1300Firmware Upgrade FileFILE1301Factory Settings FileFILE1302User Settings FileFILE1303Operation Statistics FileFILE1320Diagnostic Log File
Integration notes
- From the product manual Appendix A (Object ID, Name, Description, Default, PV Access, Object Profile, model columns). The appendix pages are rotated; text was read by word position.
- Access: R/W in the PV Access column = W; objects with a Commandable profile = C; others R. PV Access also says whether the value is stored in RAM or non-volatile memory (NVM).
- Objects not available on every model carry the model list in the description, e.g. [US4040/US4050 only].
- BSV-1120 and BSV-1200 are BitString Value objects (type listed as Other) with the bit meanings in the states field. The device object itself is not listed.
- The newer 2022 product manual drops this appendix and refers to a separate BACnet Explorer guide; this list is from the older manual (v0717.2) hosted by Kele.
Check it against the live device. A points list tells you what the controller can expose; the unit in front of you may differ by firmware or installed options. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050) and exports what it actually has to Excel — free. New to BACnet? Start with what a BACnet points list is and what the object types mean.
Questions about the TCS Basys Controls UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050)
How many BACnet points does the TCS Basys Controls UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050) have?
This list has 244 BACnet objects: 6 analog inputs, 2 analog outputs, 102 analog values, 3 binary inputs, 7 binary outputs, 36 binary values, 1 calendar, 5 files, 1 schedule, 45 multi-state values, 4 characterstring values, 30 positive integer values, 2 others. The exact set on a given unit depends on its firmware, installed options and configuration.
Which TCS Basys Controls UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050) BACnet points are writable?
202 of the 244 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done.
Where is the official TCS Basys Controls UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050) BACnet documentation?
TCS Basys Controls does not publish it on its own website. This list comes from UbiquiSTAT Commercial BACnet Thermostat Product Manual, Appendix A BACnet object list (v0717.2), a copy hosted by Kele at https://assets.kele.com/Catalog/22%20Thermostats_Controllers/PDFs/UbiquiSTAT%20Product%20Manual.pdf. Ask TCS Basys Controls or its representative for the current revision.
What are the minimum BACnet points to integrate the TCS Basys Controls UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050)?
Start with MV 700 Occupancy State (Occupancy command / state); MV 1000 System Mode (System mode (off/auto/heat/cool)); AV 71 Active Cool Setpoint (Active cooling setpoint); AV 70 Active Heat Setpoint (Active heating setpoint); MV 1101 Occupied Fan Mode (Occupied fan mode); AV 130 Space Temperature (Space temperature (BMS can write)); MV 1004 System State (Current heating/cooling state); BO 305 G (Fan output); Other 1200 Service Status (Service and fault bits).
Does the TCS Basys Controls UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050) need a BACnet heartbeat or have a communication timeout?
Commands written at priority 10 are relinquished automatically after PIV 401 Command Override Timeout (default 600 s, 0-604800 s); rewrite them before it expires or use another priority.
Can the BMS supply sensor values to the TCS Basys Controls UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050)?
Space temperature, discharge, outdoor and mixed air temperature, CO2 and RH (AV 130-135) are commandable, so a BMS can supply them; MSV 120-123 choose the source for space temperature, mixed air, CO2 and RH.
How do I check these points on the real UbiquiSTAT commercial BACnet thermostat (US4010 / US4020 / US4040 / US4050)?
Scan the network with a BACnet IP browser such as Easy BACnet, open the device and compare its object list with this table. Anything missing is usually an option that isn't installed or a point that is disabled in the controller's configuration.
Source: UbiquiSTAT Commercial BACnet Thermostat Product Manual, Appendix A BACnet object list · v0717.2. Object names, instances and units are reproduced as published; descriptions are our own.