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Duct air quality sensor (CO2, VOC, PM, humidity, temperature) · BACnet points list
Veris CD2 Protocol Series duct / plant-room air quality sensor BACnet points list
Updated 12 November 2026
The CD2 Protocol Series is a duct or plant-room sensor that reports temperature, humidity, CO2, VOC and four particulate sizes (PM1, PM2.5, PM4, PM10) over BACnet MS/TP or Modbus. Three binary values handle CO2 automatic baseline calibration, display units and a forced 400 ppm baseline. It is a different, smaller object set than the CW2 wall sensor.
This page lists 11 BACnet objects for the Veris CD2 Protocol Series duct / plant-room air quality sensor — 3 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
- CD2 Protocol Series duct / plant-room air quality sensor
- Equipment
- Duct air quality sensor (CO2, VOC, PM, humidity, temperature)
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 11 (3 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Default device instance
- Vendor ID + nnn (nnn = MS/TP address)
- Also known as
- CD2, CD2 Protocol, CD2XPXXXX, Plant Room Air Quality Unit, SpaceLogic SCD2, SCD2 Series, GEX55250, GEX55240
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 CD2 Protocol Series duct / plant-room air quality sensor
Set the MS/TP address and protocol, then read the measurements you need. The BVs are only for calibration and display.
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, ppm | Read |
| AI 1 | Room Temperature | Air temperature | Read |
| AI 2 | Room Humidity | Relative humidity, % | Read |
| AI 4 | VOC Sensor | VOC level | Read |
| AI 6 | PM2.5 Sensor | PM2.5 level | Read |
| AI 8 | PM10 Sensor | PM10 level | Read |
Network setup
- Device instance defaults to Vendor ID followed by the MS/TP address; Object_Identifier is writable.
Watch out for
- BV 10 CO2 FRC 400 re-baselines CO2 to 400 ppm; only write it in clean outdoor-level air.
Veris CD2 Protocol Series duct / plant-room air quality 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.
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 | Room Temperature | Temperature | °C | Read | |
| AImin | 2 | Room Humidity | Relative humidity | %RH | Read | |
| AImin | 3 | CO2 Sensor | CO2 concentration | ppm | Read | |
| AImin | 4 | VOC Sensor | VOC level | Read | ||
| AI | 5 | PM1 Sensor | PM1.0 level | Read | ||
| AImin | 6 | PM2.5 Sensor | PM2.5 level | Read | ||
| AI | 7 | PM4 Sensor | PM4.0 level | Read | ||
| AImin | 8 | PM10 Sensor | PM10.0 level | Read | ||
| BV | 3 | CO2 ABC Cal* | Automatic baseline calibration on/off | Write | Active=ABC enabled; Inactive=ABC disabled | |
| BV | 4 | Temperature Units* | Display units (LCD models) | Write | Active=Fahrenheit; Inactive=Celsius | |
| BV | 10 | CO2 FRC 400 | Sets 400 ppm CO2 baseline when written active | Write | Active=Set 400 ppm baseline; Inactive=No action |
No points match these filters.
Object ID lookup: Veris CD2 Protocol Series duct / plant-room air quality sensor point IDs by name
Integration notes
- The objects table has no access column; the three BVs are marked writable from their descriptions.
- Objects marked * are kept through power outages and apply to LCD models only (as printed).
- The table prints no units for VOC and PM objects; the temperature object is described in °C.
- Schneider SpaceLogic SCD2 Series (guide GEX55240) prints the same table.
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 CD2 Protocol Series duct / plant-room air quality 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 CD2 Protocol Series duct / plant-room air quality sensor
How many BACnet points does the Veris CD2 Protocol Series duct / plant-room air quality sensor have?
This list has 11 BACnet objects: 8 analog inputs, 3 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Veris CD2 Protocol Series duct / plant-room air quality sensor BACnet points are writable?
3 of the 11 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 CD2 Protocol Series duct / plant-room air quality sensor BACnet documentation?
The source is CD2 Protocol Series Installation Guide (GEX55250-03), revision 2026-09, published free by Veris at https://download.schneider-electric.com/files?p_Doc_Ref=GEX55250.
What are the minimum BACnet points to integrate the Veris CD2 Protocol Series duct / plant-room air quality sensor?
Start with AI 3 CO2 Sensor (CO2, ppm); AI 1 Room Temperature (Air temperature); AI 2 Room Humidity (Relative humidity, %); AI 4 VOC Sensor (VOC level); AI 6 PM2.5 Sensor (PM2.5 level); AI 8 PM10 Sensor (PM10 level).
How do I check these points on the real CD2 Protocol Series duct / plant-room air quality 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
- 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 - Room CO2 sensor (wall)
Veris CWLP / CWXP wall CO2 sensor with BACnet MS/TP (older generation)
Veris CWLP and CWXP wall CO2 sensors with optional humidity, temperature and slider, set to BACnet MS/TP.
Also known as: CWLP, CWXP, CWxP, CWLP2TX3, CWxPxxx, Veris CWxP Environmental Sensor, Z205597 - 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: CD2 Protocol Series Installation Guide · GEX55250-03 · rev. 2026-09. Object names, instances and units are reproduced as published; descriptions are our own.