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Laboratory VAV controller (fume cupboard) · BACnet points list

TROX EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP) BACnet points list

Updated 11 November 2026

Short answer

TROX EASYLAB lab and room airflow controllers connect to BACnet MS/TP (or Modbus RTU) through the EM-BAC-MOD-01 expansion module. This is TROX's EDE file for the fume cupboard controller (order code FH): 65 value objects (30 AV, 27 BV, 8 MV). The MS/TP module has a much smaller object set than the EM-IP (BACnet IP) module, and some instance numbers differ.

This page lists 65 BACnet objects for the TROX EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP) — 15 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from TROX’s own free documentation, linked below.

Manufacturer
TROX
Model
EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP)
Equipment
Laboratory VAV controller (fume cupboard)
Equipment type
VAV boxes & fan coils
BACnet objects
65 (15 writable)
Transport
BACnet MS/TP
Firmware
EM-BAC-MOD EDE V4.1
Default device instance
32900 + network address
Also known as
EASYLAB TCU3 EM-BAC-MOD-01, EM-BAC-MOD-01, TCU3, TROX EASYLAB, order code FH
Source document
EM-BAC-MOD EDE files V4.1 (EM-BAC-MOD_EDE-complete-V4_1) · TCU3_EDE_files_FH_V4_1
Download CSV 65 rows Download EDE B.I.G.-EU JSON Manufacturer PDF ↗ Compare with your scan Download Easy BACnet Mobile App Google Play

Reference only, provided as-is: verify against TROX’s current documentation and the live device before use. Not official TROX information. Terms of use.

BMS integration notes: TROX EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP)

Integration in brief

Write MV 2 Mode to preset the operating mode (1 = no preset, so the local panel or switch contacts decide); set BV 4 ManOP_Disable to 1 if BMS presets must win over manual control on the panel. Read MV 3 ModeAct, MV 4 RoomModeAct, AV 2 VolflowAct, AV 3 VolTotalExh, AV 8 VelocityAct, BV 1 LocalAlarm.

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.

ObjectNameWhyAccess
MV 2ModeMode preset: standard, low, high, shut-off or openWrite
BV 4ManOP_Disable1 = panel manual control off, BMS presets winWrite
MV 3ModeActCurrent operating mode of this controllerRead
MV 4RoomModeActCurrent operating mode of the roomRead
AV 2VolflowActMeasured airflow, l/sRead
AV 8VelocityActMeasured face velocity, m/sRead
AV 9WireSensorPosSash opening, %Read
AV 10DampPosDamper position, %Read
BV 1LocalAlarmAlarm on this controllerRead

Enable & remote start

MV 2 Mode presets the mode (2 standard, 3 low, 4 high, 5 shut-off, 6 open; 1 = no preset, the controller then uses its local setting or standard mode). BV 4 ManOP_Disable = 1 disables manual control on the panel, so BMS presets have the highest priority.

Sensors & values from the BMS

AV 22 VolflowExh and AV 23 VolflowSup let the BMS feed extract and supply airflows of other equipment into the room balance.

Network setup

Watch out for

TROX EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP) 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.

65 of 65 shown
Type
AnalogBinaryMulti-state
Access
Show
TROX EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP) BACnet Points List
DescriptionStates
MV1COVU-Modechange of value notify, modeWrite1=Disabled, 2=Local Broadcast, 3=Global Broadcast
MVmin2Modemode changeWrite1=No preset, 2=Standard Mode, 3=Low Mode, 4=High Mode, 5=Shut off Mode, 6=Open Mode
MVmin3ModeActmode of the device, current stateRead1=No preset, 2=Standard Mode, 3=Low Mode, 4=High Mode, 5=Shut off Mode, 6=Open Mode
MVmin4RoomModeActroom mode, current stateRead1=No preset, 2=Standard Mode, 3=Low Mode, 4=High Mode, 5=Shut off Mode, 6=Open Mode
MV5SwitchPoscurrent switch position of the sash at the fume cupboardRead1=Not defined, 2=SwitchLevel1, 3=SwitchLevel2, 4=SwitchLevel3
MV6Sunblindsun blind, current stateWrite1=Sunblind_NoPreset, 2=Sunblind_Close, 3=Sunblind_Open
MV7SC_SetLockHighPrioauto sash device (FSE): set high prio lock stateWrite1=SC_Unlock, 2=SC_Lock
MV8SC_GetLockHighPrioauto sash device (FSE): get high prio lock stateRead1=SC_LockDeactivated, 2=SC_LockActivated
AV1VolflowSetvolume flow, set valuel/sRead
AVmin2VolflowActvolume flow, current valuel/sRead
AV3VolTotalExhvolume flow, total extract air valuel/sRead
AV4VolTotalSupvolume flow, total supply air valuel/sRead
AV7VelocitySetvelocity, set valuem/sRead
AVmin8VelocityActvelocity, current valuem/sRead
AVmin9WireSensorPoswire sensor, position%Read
AVmin10DampPosdamper, current position of the device%Read
AV11DampPosMax_FHdamper, max. position of all fume cupboards%Read
AV12DampPosMin_FHdamper, min. position of all fume cupboards%Read
AV13DampPosMax_REdamper, max. position of all room extractors%Read
AV14DampPosMin_REdamper, min. position of all room extractors%Read
AV15DampPosMax_TEdamper, max. position of all extractors (FH + EC + RE)%Read
AV16DampPosMin_TEdamper, min. position of all extractors (FH + EC + RE)%Read
AV17DampPosMax_RSdamper, max. position of all room suppliers%Read
AV18DampPosMin_RSdamper, min. position of all room suppliers%Read
AV21SystemDevicestotal number of system devicesRead
AV22VolflowExhextract airflow input from an external devicel/sWrite
AV23VolflowSupsupply airflow input from an external devicel/sWrite
AV24SC_SetPosauto sash device (FSE): set position value%Write
AV25SC_GetPosauto sash device (FSE): current position value%Read
AV26DampPosMax_ECdamper, max. position of all extractors (EC)%Read
AV27DampPosMin_ECdamper, mix. position of all extractors (EC)%Read
AV28DampPosMax_SCdamper, max. position of all suppliers (SC)%Read
AV29DampPosMin_SCdamper, min. position of all suppliers (SC)%Read
AV30DampPosMax_TSdamper, max. position of all suppliers (SC + RS)%Read
AV31DampPosMin_TSdamper, min. position of all suppliers (SC + RS)%Read
AV34Volt_AI2current voltage AI2VRead
AV35Volt_AI3current voltage AI3VRead
AV36Volt_AO2set Voltage AO2VWrite
BVmin1LocalAlarmlocal alarmRead0=Normal, 1=Alarm
BVmin4ManOP_Disablemanual operation, disableWrite0=Manual control enabled on panel, 1=Manual control disabled
BV6DI1digital input 1Read0=Off, 1=On
BV7DI2digital input 2Read0=Off, 1=On
BV8DI3digital input 3Read0=Off, 1=On
BV9DI4digital input 4Read0=Off, 1=On
BV10DI5digital input 5Read0=Off, 1=On
BV11DI6digital input 6Read0=Off, 1=On
BV12DO1digital output 1Read0=Off, 1=On
BV13DO2digital output 2Read0=Off, 1=On
BV14DO3digital output 3Read0=Off, 1=On
BV15DO4digital output 4Read0=Off, 1=On
BV16DO5digital output 5Read0=Off, 1=On
BV17DO6digital output 6Read0=Off, 1=On
BV18SC_Alarmauto sash device (FSE): alarmRead0=Normal, 1=Alarm
BV19DO1_Setdigital output 1 setWrite0=Inactive, 1=Active
BV20DO2_Setdigital output 2 setWrite0=Inactive, 1=Active
BV21DO3_Setdigital output 3 setWrite0=Inactive, 1=Active
BV22DO4_Setdigital output 4 setWrite0=Inactive, 1=Active
BV23DO5_Setdigital output 5 setWrite0=Inactive, 1=Active
BV24DO6_Setdigital output 6 setWrite0=Inactive, 1=Active
BV25DO1_SetByLocaldigital output 1 feedbackRead0=External, 1=Local
BV26DO2_SetByLocaldigital output 2 feedbackRead0=External, 1=Local
BV27DO3_SetByLocaldigital output 3 feedbackRead0=External, 1=Local
BV28DO4_SetByLocaldigital output 4 feedbackRead0=External, 1=Local
BV29DO5_SetByLocaldigital output 5 feedbackRead0=External, 1=Local
BV30DO6_SetByLocaldigital output 6 feedbackRead0=External, 1=Local
Object ID lookup: TROX EASYLAB Fume Cupboard EM-BAC-MOD-01 point IDs by name

Integration notes

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 EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP) 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 TROX EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP)

How many BACnet points does the TROX EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP) have?

This list has 65 BACnet objects: 30 analog values, 27 binary values, 8 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which TROX EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP) BACnet points are writable?

15 of the 65 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 TROX EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP) BACnet documentation?

The source is EM-BAC-MOD EDE files V4.1 (EM-BAC-MOD_EDE-complete-V4_1) (TCU3_EDE_files_FH_V4_1), published free by TROX at https://www.trox.de/en/downloads/42fe282430305ce7/EM-BAC-MOD_EDE-complete-V4_1.zip.

What are the minimum BACnet points to integrate the TROX EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP)?

Start with MV 2 Mode (Mode preset: standard, low, high, shut-off or open); BV 4 ManOP_Disable (1 = panel manual control off, BMS presets win); MV 3 ModeAct (Current operating mode of this controller); MV 4 RoomModeAct (Current operating mode of the room); AV 2 VolflowAct (Measured airflow, l/s); AV 8 VelocityAct (Measured face velocity, m/s); AV 9 WireSensorPos (Sash opening, %); AV 10 DampPos (Damper position, %); BV 1 LocalAlarm (Alarm on this controller).

How do I enable BMS control of the TROX EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP)?

MV 2 Mode presets the mode (2 standard, 3 low, 4 high, 5 shut-off, 6 open; 1 = no preset, the controller then uses its local setting or standard mode). BV 4 ManOP_Disable = 1 disables manual control on the panel, so BMS presets have the highest priority.

Can the BMS supply sensor values to the TROX EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP)?

AV 22 VolflowExh and AV 23 VolflowSup let the BMS feed extract and supply airflows of other equipment into the room balance.

How do I check these points on the real EASYLAB TCU3 fume cupboard controller (EM-BAC-MOD-01, BACnet MS/TP)?

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 TROX BACnet points lists

Source: EM-BAC-MOD EDE files V4.1 (EM-BAC-MOD_EDE-complete-V4_1) · TCU3_EDE_files_FH_V4_1. Object names, instances and units are reproduced as published; descriptions are our own.