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Universal HVAC controller · BACnet points list
Regulator Automation TC6644 networkable universal controller BACnet points list
Updated 12 November 2026
The TC6644 is a pre-programmed universal controller (temperature, humidity, pressure, flow, CO and CO2 function blocks) with four relays and three analogue outputs. Over BACnet MS/TP it exposes run control, the relays and analogue outputs, the loop sensor value(s) and setpoint(s), and the readings of up to ten CO smart sensors.
This page lists 15 BACnet objects for the Regulator Automation TC6644 networkable universal controller — 10 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Regulator Automation’s own free documentation, linked below.
- Manufacturer
- Regulator Automation
- Model
- TC6644 networkable universal controller
- Equipment
- Universal HVAC controller
- Equipment type
- Other equipment
- BACnet objects
- 15 (10 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Default device instance
- 1
- Also known as
- TC6644, Regulator TC6644, Regulator Australia TC6644
Reference only, provided as-is: verify against Regulator Automation’s current documentation and the live device before use. Not official Regulator Automation information. Terms of use.
BMS integration notes: Regulator Automation TC6644 networkable universal controller
Start/stop the controller with BV 40, write the loop setpoint(s) and read the sensor value(s), relay and output states.
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 |
|---|---|---|---|
| BV 40 | Run Control | Run / stop command | Write |
| AV 500 | Setpoint Value loop 1 | Loop 1 setpoint | Write |
| BV 41 | Run Control Status | Run status | Read |
| AI 400 | Sensor Value loop 1 | Loop 1 sensor value | Read |
Network setup
- MS/TP master at 9600, 19200, 38400 or 76800 baud; up to 32 nodes per network.
Regulator Automation TC6644 networkable universal controller 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 | |||||
|---|---|---|---|---|---|---|
| BVmin | 40 | Run Control | Run / stop command | Write | ||
| BVmin | 41 | Run Control Status | Run status | Read | ||
| BO | 100 | Relay 1 | Relay 1 (SPCO) | Write | ||
| BO | 101 | Relay 2 | Relay 2 (SPNO) | Write | ||
| BO | 102 | Relay 3 | Relay 3 (SPNO) | Write | ||
| BO | 103 | Relay 4 | Relay 4 (SPNO) | Write | ||
| AO | 200 | Analog Out 1 | Analogue output 1 | Write | ||
| AO | 201 | Analog Out 2 | Analogue output 2 | Write | ||
| AO | 202 | Analog Out 3 | Analogue output 3 (printed AnalogOut 3 in the dual-loop table) | Write | ||
| AImin | 400 | Sensor Value loop 1 | Loop 1 sensor value (single-loop name: Sensor Value) | Read | ||
| AI | 401 | Sensor Value loop 2 | Loop 2 sensor value (dual-loop modes only) | Read | ||
| AVmin | 500 | Setpoint Value loop 1 | Loop 1 setpoint (single-loop name: Setpoint Value) | Write | ||
| AV | 501 | Setpoint Value loop 2 | Loop 2 setpoint (dual-loop modes only) | Write | ||
| AV | 600 | CO Smart Sensor CO - Addresses : 1-10* | CO reading of smart sensors 1-10 = AV 600-609 | Read | ||
| AV | 700 | CO Smart Sensor Temperature - Addresses : 1-10* | Temperature of smart sensors 1-10 = AV 700-709 | Read |
No points match these filters.
Object ID lookup: Regulator Automation TC6644 networkable universal controller point IDs by name
BV40Run ControlBV41Run Control StatusBO100Relay 1BO101Relay 2BO102Relay 3BO103Relay 4AO200Analog Out 1AO201Analog Out 2AO202Analog Out 3AI400Sensor Value loop 1AI401Sensor Value loop 2AV500Setpoint Value loop 1AV501Setpoint Value loop 2AV600CO Smart Sensor CO - Addresses : 1-10*AV700CO Smart Sensor Temperature - Addresses : 1-10*
Integration notes
- The data sheet prints two tables: single-loop modes (one sensor value AI 400 and setpoint AV 500) and dual-loop modes (adds AI 401 and AV 501, with 'loop 1/2' in the names). This list follows the dual-loop table.
- CO smart sensor objects are printed as ranges: CO readings AV 600-609 and temperatures AV 700-709 for sensor addresses 1-10. Only the first instance of each range is listed.
- Device object instance is printed as 1.
- Units are not printed; the sensor value follows the selected function block.
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 TC6644 networkable universal controller 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 Regulator Automation TC6644 networkable universal controller
How many BACnet points does the Regulator Automation TC6644 networkable universal controller have?
This list has 15 BACnet objects: 2 analog inputs, 3 analog outputs, 4 analog values, 4 binary outputs, 2 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Regulator Automation TC6644 networkable universal controller BACnet points are writable?
10 of the 15 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 Regulator Automation TC6644 networkable universal controller BACnet documentation?
The source is TC6644 Networkable Universal Controller Data Sheet (Ver. 10), revision 2021-01, published free by Regulator Automation at https://cdn.shopify.com/s/files/1/0229/3052/2190/files/TC6644_Data_Sheet___Ver._10.pdf.
What are the minimum BACnet points to integrate the Regulator Automation TC6644 networkable universal controller?
Start with BV 40 Run Control (Run / stop command); AV 500 Setpoint Value loop 1 (Loop 1 setpoint); BV 41 Run Control Status (Run status); AI 400 Sensor Value loop 1 (Loop 1 sensor value).
How do I check these points on the real TC6644 networkable universal controller?
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: TC6644 Networkable Universal Controller Data Sheet · Ver. 10 · rev. 2021-01. Object names, instances and units are reproduced as published; descriptions are our own.