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Indoor air quality sensor (CO2, VOC, temperature, humidity) · BACnet points list
Veris CW2 Protocol Series CO2, VOC, humidity and temperature room sensor BACnet points list
Updated 6 November 2026
The CW2 wall sensor measures temperature, humidity, CO2 and VOC and computes dew point, reported over BACnet MS/TP or Modbus. Writable values cover touchscreen setpoints, CO2 stoplight limits, offsets, CO2 calibration and display options.
This page lists 27 BACnet objects for the Veris CW2 Protocol Series CO2, VOC, humidity and temperature room sensor — 22 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Veris’s own free documentation, linked below.
- Manufacturer
- Veris
- Model
- CW2 Protocol Series CO2, VOC, humidity and temperature room sensor
- Equipment
- Indoor air quality sensor (CO2, VOC, temperature, humidity)
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 27 (22 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Default device instance
- Vendor ID + MS/TP address (nnn)
- Also known as
- CW2, CW2 Protocol, SpaceLogic SLP Air Quality, SLP Series Air Quality, Z207902, Living Space Room Unit
Reference only, provided as-is: verify against Veris’s current documentation and the live device before use. Not official Veris information. Terms of use.
BMS integration notes: Veris CW2 Protocol Series CO2, VOC, humidity and temperature room sensor
Set the MS/TP address and BACnet mode on the DIP switches, then read CO2, VOC, temperature and humidity. Offsets and limits are preserved settings to write once.
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 |
|---|---|---|---|
| AI 3 | CO2 Sensor | CO2 concentration, ppm | Read |
| AI 1 | Room Temperature | Room temperature | Read |
| AI 2 | Room Humidity | Room relative humidity, % | Read |
| AI 4 | VOC Sensor | VOC level | Read |
Network setup
- BACnet MS/TP on RS-485: DIP switch ADDRESS positions 1-7 set the MAC (0-127 for BACnet), position 8 selects BACnet or Modbus.
- Baud rates for BACnet: 9600, 19200, 38400, 76800, set on the CONFIG DIP switch.
- Device instance = Vendor_ID followed by the MS/TP address (e.g. 133nnn); it can be rewritten in the device object.
Watch out for
- Writing CO2 FRC 400 (BV 10) active re-baselines the CO2 sensor to 400 ppm; treat it as a one-off calibration.
- Occupancy Override logic is inverted: active means not occupied.
Veris CW2 Protocol Series CO2, VOC, humidity and temperature room sensor 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 | |||||
|---|---|---|---|---|---|---|
| AImin | 1 | Room Temperature | Room temperature | °C or °F | Read | |
| AImin | 2 | Room Humidity | Room relative humidity | %RH | Read | |
| AImin | 3 | CO2 Sensor | CO2 concentration | ppm | Read | |
| AImin | 4 | VOC Sensor | VOC level | Read | ||
| AI | 9 | Dew Point | Dew point temperature | °C or °F | Read | |
| AV | 1 | Temperature Setpoint* | Temperature setpoint, 0-50 | °C | Write | |
| AV | 2 | Humidity Setpoint* | Humidity setpoint, 0-100 | %RH | Write | |
| AV | 3 | CO2 Yellow Limit* | CO2 level for green-to-yellow screen, 400-10000 | ppm | Write | |
| AV | 4 | CO2 Red Limit* | CO2 level for yellow-to-red screen, 400-10000 | ppm | Write | |
| AV | 7 | Temperature Offset* | Offset added to temperature reading, -5 to 5 | Write | ||
| AV | 8 | Humidity Offset* | Offset added to humidity reading, -10 to 10 | Write | ||
| AV | 9 | CO2 Offset* | Offset added to CO2, -250 to 250 | ppm | Write | |
| AV | 10 | VOC Offset* | Offset added to VOC, -500 to 500 | Write | ||
| BV | 1 | CO2 Stoplight* | Enables the CO2 stoplight screen colors | Write | 0=Disabled, 1=Enabled | |
| BV | 2 | Touch Disable* | Disables touch response when active | Write | 0=Touch enabled, 1=Touch disabled | |
| BV | 3 | CO2 ABC Cal* | Enables automatic baseline calibration | Write | 0=Disabled, 1=Enabled | |
| BV | 4 | Temperature Units* | Display units | Write | 0=Celsius, 1=Fahrenheit | |
| BV | 5 | Occupancy Override | Occupancy override (active = room not occupied) | Write | 0=Occupied, 1=Not occupied | |
| BV | 6 | Screen Timeout* | Enables screen timeout | Write | 0=Disabled, 1=Enabled | |
| BV | 7 | Display Humidity* | Shows humidity on the screen | Write | 0=Hidden, 1=Shown | |
| BV | 8 | Display CO2* | Shows CO2 on the screen | Write | 0=Hidden, 1=Shown | |
| BV | 9 | Display VOC* | Shows VOC on the screen | Write | 0=Hidden, 1=Shown | |
| BV | 10 | CO2 FRC 400 | Active sets 400 ppm CO2 baseline (forced calibration) | Write | 0=No action, 1=Set 400 ppm baseline | |
| BV | 11 | Select Temperature Display* | Main screen shows setpoint (active) or room temperature | Write | 0=Room temp on main screen, 1=Setpoint on main screen | |
| BV | 13 | Display Setpoint* | Shows temperature setpoint on home screen | Write | 0=Hidden, 1=Shown | |
| MV | 1 | Screen Color Set* | Screen color theme, 1-4 | Write | ||
| MV | 2 | Fan Speed* | Fan speed selection, 1-5 | Write |
No points match these filters.
Object ID lookup: Veris CW2 Protocol Series CO2, VOC, humidity and temperature room sensor point IDs by name
AI1Room TemperatureAI2Room HumidityAI3CO2 SensorAI4VOC SensorAI9Dew PointAV1Temperature Setpoint*AV2Humidity Setpoint*AV3CO2 Yellow Limit*AV4CO2 Red Limit*AV7Temperature Offset*AV8Humidity Offset*AV9CO2 Offset*AV10VOC Offset*BV1CO2 Stoplight*BV2Touch Disable*BV3CO2 ABC Cal*BV4Temperature Units*BV5Occupancy OverrideBV6Screen Timeout*BV7Display Humidity*BV8Display CO2*BV9Display VOC*BV10CO2 FRC 400BV11Select Temperature Display*BV13Display Setpoint*MV1Screen Color Set*MV2Fan Speed*
Integration notes
- Names with * are preserved through power outages; avoid writing them cyclically.
- Touchscreen setpoint, fan speed, display and color objects only matter on touchscreen models.
- The SpaceLogic SLP Air Quality Series guide (Z207902) lists the same 27 object identifiers; it is covered by this entry. Its names differ only in spelling 'Limits' for AV 3-4.
- Which measurements are present depends on the model ordered.
- Source: CW2 Protocol Series Installation Guide Z207932-0N (03/2026), objects table p8-9.
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 CW2 Protocol Series CO2, VOC, humidity and temperature room sensor 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 Veris CW2 Protocol Series CO2, VOC, humidity and temperature room sensor
How many BACnet points does the Veris CW2 Protocol Series CO2, VOC, humidity and temperature room sensor have?
This list has 27 BACnet objects: 5 analog inputs, 8 analog values, 12 binary values, 2 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Veris CW2 Protocol Series CO2, VOC, humidity and temperature room sensor BACnet points are writable?
22 of the 27 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 Veris CW2 Protocol Series CO2, VOC, humidity and temperature room sensor BACnet documentation?
The source is CW2 Protocol Series Installation Guide (Z207932-0N), revision 2026-03, published free by Veris at https://download.se.com/files?p_Doc_Ref=Z207932.
What are the minimum BACnet points to integrate the Veris CW2 Protocol Series CO2, VOC, humidity and temperature room sensor?
Start with AI 3 CO2 Sensor (CO2 concentration, ppm); AI 1 Room Temperature (Room temperature); AI 2 Room Humidity (Room relative humidity, %); AI 4 VOC Sensor (VOC level).
How do I check these points on the real CW2 Protocol Series CO2, VOC, humidity and temperature room sensor?
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.
More Veris BACnet points lists
- Power and energy meter
Veris E50H2 / E50H5 compact power and energy meter (BACnet MS/TP)
Veris E50H2 and E50H5 DIN-rail power and energy meters with BACnet MS/TP; the E50H5 adds data logging and a real-time clock alert.
Also known as: E50H2, E50H5, E50H2A, E50H5A, Veris E50, E50Hx, ZL0071 - Gas detection sensor (wall platform)
Veris GWNP Series wall gas sensor platform (AG sensors)
Veris GWNP wall-mounted gas platforms fitted with a Veris AG Series gas sensor, on BACnet MS/TP.
Also known as: GWNP, GWNPxx, GWN, Veris gas platform BACnet, AG Series gas sensor - Room humidity and temperature sensor (wall)
Veris HW2 Protocol Series humidity and temperature room sensor
Veris HW2 Protocol Series wall humidity/temperature sensors (optional touchscreen) set to BACnet MS/TP.
Also known as: HW2, HW2 Protocol, HW2TP2A, Living Space Room Unit, Veris HW2 BACnet - Indoor air quality sensor (PM, CO2, VOC, temperature, humidity)
Veris PMW Protocol Series particulate (PM), CO2 and VOC room sensor
Veris PMW Protocol Series wall air quality sensors, and the identical Schneider SpaceLogic SLP PM Series, on BACnet MS/TP.
Also known as: PMW, PMW Protocol, SpaceLogic SLP PM, SLP Series PM, ZL0199, Veris PM sensor BACnet - Room temperature sensor (wall)
Veris TW2 Protocol Series temperature room sensor
Veris TW2 Protocol Series wall temperature sensors (optional touchscreen) set to BACnet MS/TP.
Also known as: TW2, TW2 Protocol, Living Space Room Unit, Veris TW2 BACnet
Source: CW2 Protocol Series Installation Guide · Z207932-0N · rev. 2026-03. Object names, instances and units are reproduced as published; descriptions are our own.