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Gas detection sensor (wall platform) · BACnet points list
Veris GWNP Series wall gas sensor platform (AG sensors) BACnet points list
Updated 6 November 2026
The GWNP is a wall platform that carries one replaceable Veris AG gas sensor (single or dual gas) and reports it over BACnet MS/TP or Modbus. It exposes the gas readings, sensor life and runtime, writable high/low alarm setpoints and hysteresis, two setpoint-exceeded BIs and BVs to override the two relays.
This page lists 22 BACnet objects for the Veris GWNP Series wall gas sensor platform (AG sensors) — 16 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
- GWNP Series wall gas sensor platform (AG sensors)
- Equipment
- Gas detection sensor (wall platform)
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 22 (16 writable)
- Transport
- BACnet MS/TP
- Firmware
- 1.1.2 (application 1.2)
- Default device instance
- Vendor ID + MS/TP address (nnn)
- Also known as
- GWNP, GWNPxx, GWN, Veris gas platform BACnet, AG Series gas sensor
- Source document
- GWNP Series Installation Guide · Z207135-0F · rev. 2021-08
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 GWNP Series wall gas sensor platform (AG sensors)
Set the MS/TP address and BACnet mode on the DIP switches, then read the gas concentration(s) and the two setpoint-exceeded BIs; watch Lifetime for sensor replacement. Setpoints can be set over BACnet once BV 6 Lock_Settings hands control to the registers.
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 | Sensor1* | Gas concentration, sensor 1 (NO2 reads 10x) | Read |
| AI 2 | Sensor2* | Gas concentration, sensor 2 (dual gas) | Read |
| BI 1 | High_Set-Point_Exceeded | High gas alarm (high relay state) | Read |
| BI 2 | Low_Set-point_Exceeded | Low gas alarm (low relay state) | Read |
| AI 3 | Lifetime | Hours left before sensor replacement | Read |
Network setup
- BACnet MS/TP: ADDRESS DIP positions 1-7 set the MAC (0-127), position 8 selects BACnet or Modbus; CONFIG DIP sets baud (9600-76800) and autobaud.
- Device instance = 133 (Identifier_Value_Prefix, AV 2) followed by the MS/TP address; also writable via AV 1.
- No segmentation.
Watch out for
- NO2 readings are 10x the real value; scale by 0.1.
- DIP switches override written settings unless BV 6 Lock_Settings is active.
- Relay override BVs (2-5) take the relays away from the gas alarms; leave them inactive in normal use.
Veris GWNP Series wall gas sensor platform (AG sensors) 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 | Sensor1* | Gas concentration, sensor 1 (NO2 reads 10x) | ppm | Read | |
| AImin | 2 | Sensor2* | Gas concentration, sensor 2 (dual gas only) | ppm | Read | |
| AImin | 3 | Lifetime | Hours left until sensor replacement | h | Read | |
| AI | 4 | Runtime | Sensor run hours | h | Read | |
| AV | 1 | Device_Instance | Alternative way to set the device instance | Write | ||
| AV | 2 | Identifier_Value_Prefix | Prefix before the MAC in the device instance (initially 133) | Write | ||
| AV | 3 | Sensor1_High_Set-point* | Sensor 1 high setpoint | ppm | Write | |
| AV | 4 | Sensor1_High_Hysteresis* | Sensor 1 high hysteresis | ppm | Write | |
| AV | 5 | Sensor1_Low_Set-Point* | Sensor 1 low setpoint | ppm | Write | |
| AV | 6 | Sensor1_Low_Hysteresis* | Sensor 1 low hysteresis | ppm | Write | |
| AV | 7 | Sensor2_High_Set-Point* | Sensor 2 high setpoint | ppm | Write | |
| AV | 8 | Sensor2_High_Hysteresis* | Sensor 2 high hysteresis | ppm | Write | |
| AV | 9 | Sensor2_Low_Set-point* | Sensor 2 low setpoint | ppm | Write | |
| AV | 10 | Sensor2_Low_Hysteresis* | Sensor 2 low hysteresis | ppm | Write | |
| BImin | 1 | High_Set-Point_Exceeded | Active when a sensor is at or above its high setpoint | Read | 0=Inactive, 1=Active | |
| BImin | 2 | Low_Set-point_Exceeded | Active when a sensor is at or above its low setpoint | Read | 0=Inactive, 1=Active | |
| BV | 1 | Device_Object_Reset | Write active to reset device name and instance; reads inactive | Write | ||
| BV | 2 | High_Relay_Override | Active: BV 3 drives the high relay instead of BI 1 | Write | ||
| BV | 3 | High_Relay_Level | High relay command when BV 2 is active | Write | ||
| BV | 4 | Low_Relay_Override | Active: BV 5 drives the low relay instead of BI 2 | Write | ||
| BV | 5 | Low_Relay_Level | Low relay command when BV 4 is active | Write | ||
| BV | 6 | Lock_Settings | Active: registers, not DIP switches, control settings | Write |
No points match these filters.
Object ID lookup: Veris GWNP Series wall gas sensor platform point IDs by name
AI1Sensor1*AI2Sensor2*AI3LifetimeAI4RuntimeAV1Device_InstanceAV2Identifier_Value_PrefixAV3Sensor1_High_Set-point*AV4Sensor1_High_Hysteresis*AV5Sensor1_Low_Set-Point*AV6Sensor1_Low_Hysteresis*AV7Sensor2_High_Set-Point*AV8Sensor2_High_Hysteresis*AV9Sensor2_Low_Set-point*AV10Sensor2_Low_Hysteresis*BI1High_Set-Point_ExceededBI2Low_Set-point_ExceededBV1Device_Object_ResetBV2High_Relay_OverrideBV3High_Relay_LevelBV4Low_Relay_OverrideBV5Low_Relay_LevelBV6Lock_Settings
Integration notes
- Which gases are measured depends on the AG sensor fitted; Sensor2 reads Reliability = No Sensor on single-gas sensors.
- With an NO2 sensor the Present_Value is 10x the actual ppm (12 = 1.2 ppm).
- Names with * are preserved through power outages.
- Units of AI 1/AI 2 and the setpoint AVs follow the sensor (normally ppm).
- Firmware 1.1.2, application 1.2 (PICS).
- Source: GWNP Series Installation Guide Z207135-0F.
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 GWNP Series wall gas sensor platform (AG sensors) 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 GWNP Series wall gas sensor platform (AG sensors)
How many BACnet points does the Veris GWNP Series wall gas sensor platform (AG sensors) have?
This list has 22 BACnet objects: 4 analog inputs, 10 analog values, 2 binary inputs, 6 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Veris GWNP Series wall gas sensor platform (AG sensors) BACnet points are writable?
16 of the 22 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 GWNP Series wall gas sensor platform (AG sensors) BACnet documentation?
The source is GWNP Series Installation Guide (Z207135-0F), revision 2021-08, published free by Veris at https://download.se.com/files?p_Doc_Ref=Z207135.
What are the minimum BACnet points to integrate the Veris GWNP Series wall gas sensor platform (AG sensors)?
Start with AI 1 Sensor1* (Gas concentration, sensor 1 (NO2 reads 10x)); AI 2 Sensor2* (Gas concentration, sensor 2 (dual gas)); BI 1 High_Set-Point_Exceeded (High gas alarm (high relay state)); BI 2 Low_Set-point_Exceeded (Low gas alarm (low relay state)); AI 3 Lifetime (Hours left before sensor replacement).
How do I check these points on the real GWNP Series wall gas sensor platform (AG sensors)?
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.
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Source: GWNP Series Installation Guide · Z207135-0F · rev. 2021-08. Object names, instances and units are reproduced as published; descriptions are our own.