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Room CO2 sensor (wall) · BACnet points list
Veris CWLP / CWXP wall CO2 sensor with BACnet MS/TP (older generation) BACnet points list
Updated 12 November 2026Unofficial source
The CWLP/CWXP is the older Veris wall CO2 sensor with a relay output and an RS-485 port that runs BACnet MS/TP or Modbus (DIP switch 1). It reports CO2 plus optional humidity, temperature and slider position, and has writable relay setpoint/deadband, ABC calibration mode, offsets, units and an override button flag. It is the predecessor of the CW2 Protocol series and uses a different object set.
This page lists 15 BACnet objects for the Veris CWLP / CWXP wall CO2 sensor with BACnet MS/TP (older generation) — 10 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from a copy of Veris’s documentation hosted by Kele, not by Veris itself, so treat it as unofficial.
- Manufacturer
- Veris
- Model
- CWLP / CWXP wall CO2 sensor with BACnet MS/TP (older generation)
- Equipment
- Room CO2 sensor (wall)
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 15 (10 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Default device instance
- 133nnn (nnn = MS/TP address)
- Also known as
- CWLP, CWXP, CWxP, CWLP2TX3, CWxPxxx, Veris CWxP Environmental Sensor, Z205597
- Source document
- CWLP, CWXP Installation Guide · Z205597-0G · rev. 2016-03 (unofficial copy, hosted by Kele)
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 CWLP / CWXP wall CO2 sensor with BACnet MS/TP (older generation)
Set DIP switch 1 down for BACnet, set the MS/TP address on switches 2-8 and the baud rate on the configuration switches, then read CO2_Level and any fitted humidity, temperature or slider values.
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 1 | CO2_Level | Room CO2, ppm | Read |
| AI 3 | Temperature | Room temperature (if fitted) | Read |
| AI 2 | Humidity | Room relative humidity, % (if fitted) | Read |
| AI 4 | Slider | Occupant slider position, % (if fitted) | Read |
| BV 4 | Override | Override button pressed; write 0 to clear | Write |
| BI 1 | Relay_On | CO2 relay energized | Read |
Network setup
- Address DIP switch 1: down = BACnet, up = Modbus. Switches 2-8 add 64/32/16/8/4/2/1 to the MS/TP address (0-127).
- Configuration DIP switches 3-4 set the baud rate: BACnet 9600, 19200, 38400 or 76800.
- Default device instance is 133nnn (nnn = MS/TP address); it can be changed and is remembered. Max_Master default 127.
Watch out for
- BV 4 Override latches until the BMS writes 0.
- CO2 calibration needs a Veris gas kit; BV 3 Cal_Lockout must be cleared first.
Veris CWLP / CWXP wall CO2 sensor with BACnet MS/TP (older generation) 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.
Note: the source document has no read/write column, so access here is inferred from the object type (inputs read-only, values writable). Confirm on the live controller before writing.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AImin | 1 | CO2_Level | CO2 concentration | ppm | Read | |
| AImin | 2 | Humidity | Relative humidity (if sensor installed) | %RH | Read | |
| AImin | 3 | Temperature | Temperature (if sensor installed) | °F or °C | Read | |
| AImin | 4 | Slider | Slider position (if fitted) | % | Read | |
| AV | 1 | Device_Instance | Alternative way to set the device instance; negative restores 133nnn | Write | ||
| AV | 2 | CO2_Setpoint | CO2 relay setpoint, default 800 | ppm | Write | |
| AV | 3 | CO2_Deadband | CO2 relay deadband, default 50 | ppm | Write | |
| AV | 4 | Auto_Cal | ABC auto-calibration: 0 normal, 1 low, 2 off | Write | 0=Normal; 1=Low; 2=Off | |
| AV | 5 | Temp_Offset | Temperature offset, current units (if present) | Write | ||
| AV | 6 | RH_Offset | Humidity offset (if present) | %RH | Write | |
| BImin | 1 | Relay_On | Relay energized by gas level (ignores BV 2) | Read | 1=Energized | |
| BV | 1 | Fahrenheit | Temperature units, default 1 | Write | 0=Celsius; 1=Fahrenheit | |
| BV | 2 | Relay_Override | Forces relay on; volatile, default 0 | Write | 1=Force relay on | |
| BV | 3 | Cal_Lockout | Locks out calibration, default 1 | Write | 1=Locked | |
| BVmin | 4 | Override | Override button pressed; write 0 to reset (if present) | Write | 1=Pressed |
No points match these filters.
Object ID lookup: Veris CWLP / CWXP wall CO2 sensor with BACnet MS/TP point IDs by name
Integration notes
- The objects table has no access column; AV and BV objects are marked writable from the guide's descriptions, AI and BI as read-only.
- Humidity, temperature, slider, the offsets and the override button only exist on models with those options.
- BV 2 Relay_Override and BV 4 Override are volatile; the other settings are kept.
- Auto_Cal (ABC) settings: 0 normal (building empty within 24 h), 1 low (occupied 24 h), 2 off.
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 CWLP / CWXP wall CO2 sensor with BACnet MS/TP (older generation) 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 CWLP / CWXP wall CO2 sensor with BACnet MS/TP (older generation)
How many BACnet points does the Veris CWLP / CWXP wall CO2 sensor with BACnet MS/TP (older generation) have?
This list has 15 BACnet objects: 4 analog inputs, 6 analog values, 1 binary input, 4 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Veris CWLP / CWXP wall CO2 sensor with BACnet MS/TP (older generation) 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. The source has no read/write column, so this is inferred from object type.
Where is the official Veris CWLP / CWXP wall CO2 sensor with BACnet MS/TP (older generation) BACnet documentation?
Veris does not publish it on its own website. This list comes from CWLP, CWXP Installation Guide (Z205597-0G), revision 2016-03, a copy hosted by Kele at https://assets.kele.com/product-assets/veris-industries/skus/cwlp2tx3/related/installsheet_1024_cwlp2tx3.pdf. Ask Veris or its representative for the current revision.
What are the minimum BACnet points to integrate the Veris CWLP / CWXP wall CO2 sensor with BACnet MS/TP (older generation)?
Start with AI 1 CO2_Level (Room CO2, ppm); AI 3 Temperature (Room temperature (if fitted)); AI 2 Humidity (Room relative humidity, % (if fitted)); AI 4 Slider (Occupant slider position, % (if fitted)); BV 4 Override (Override button pressed; write 0 to clear); BI 1 Relay_On (CO2 relay energized).
How do I check these points on the real CWLP / CWXP wall CO2 sensor with BACnet MS/TP (older generation)?
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
- Duct air quality sensor (CO2, VOC, PM, humidity, temperature)
Veris CD2 Protocol Series duct / plant-room air quality sensor
Veris CD2 Protocol Series duct and plant-room air quality sensors (and the Schneider SpaceLogic SCD2 twin) set to BACnet MS/TP.
Also known as: CD2, CD2 Protocol, CD2XPXXXX, Plant Room Air Quality Unit, SpaceLogic SCD2, SCD2 Series, GEX55250, GEX55240 - Indoor air quality sensor (CO2, VOC, temperature, humidity)
Veris CW2 Protocol Series CO2, VOC, humidity and temperature room sensor
Veris CW2 Protocol Series wall air quality sensors, and the identical Schneider SpaceLogic SLP Air Quality Series, on BACnet MS/TP.
Also known as: CW2, CW2 Protocol, SpaceLogic SLP Air Quality, SLP Series Air Quality, Z207902, Living Space Room Unit - 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 - Power and energy meter (bi-directional)
Veris E51H2 / E51H5 bi-directional compact power and energy meter (BACnet MS/TP)
Veris E51H2 and E51H5 DIN-rail three-phase meters with BACnet MS/TP that measure import and export energy; the E51H5 adds data logging.
Also known as: E51H2, E51H5, Veris E51, E51Hx, E51 Series, ZL0109 - Power and energy meter
Veris E71 series energy meter (BACnet IP)
Veris E71 series DIN-rail three-phase energy meters (E71E3, E71E3A, E71E3X, E71E3AX) with dual Ethernet ports.
Also known as: E71, E71E3, E71E3A, E71E3X, E71E3AX, Veris E71, E71 Series Energy Meter - 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 - Duct humidity and temperature sensor
Veris HD2 Protocol Series duct humidity / temperature sensor
Veris HD2 Protocol Series duct and plant-room humidity/temperature sensors (and the Schneider SpaceLogic SHD2 twin) set to BACnet MS/TP.
Also known as: HD2, HD2 Protocol, HD2XPXXXX, Plant Room Humidity and Temperature Unit, SpaceLogic SHD2, SHD2 Series, GEX55253, GEX55243 - 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: CWLP, CWXP Installation Guide · Z205597-0G · rev. 2016-03. Object names, instances and units are reproduced as published; descriptions are our own.