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Laboratory VAV airflow controller · BACnet points list

TROX EASYLAB TCU3 room supply/extract controller with room management function (RMF) (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 room supply/extract controller with room management function (RMF) (order code LAB-RMF / CLR-RMF): 63 value objects (29 AV, 29 BV, 5 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 63 BACnet objects for the TROX EASYLAB TCU3 room supply/extract controller with room management function (RMF) (EM-BAC-MOD-01, BACnet MS/TP) — 16 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 room supply/extract controller with room management function (RMF) (EM-BAC-MOD-01, BACnet MS/TP)
Equipment
Laboratory VAV airflow controller
Equipment type
VAV boxes & fan coils
BACnet objects
63 (16 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 LAB-RMF / CLR-RMF
Source document
EM-BAC-MOD EDE files V4.1 (EM-BAC-MOD_EDE-complete-V4_1) · TCU3_EDE_files_RR_with_RMF_V4_1
Download CSV 63 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 room supply/extract controller with room management function (RMF) (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 6 PressAct, BV 1 LocalAlarm, BV 2 SummaryAlarm.

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
BV 5PressSetSelSelects stored pressure setpoint 1 or 2Write
MV 3ModeActCurrent operating mode of this controllerRead
MV 4RoomModeActCurrent operating mode of the roomRead
AV 2VolflowActMeasured airflow, l/sRead
AV 6PressActMeasured room or duct pressure, PaRead
BV 2SummaryAlarmSummary alarm of the room systemRead
BV 1LocalAlarmAlarm on this controllerRead
BV 3PressAlarmPressure alarmRead

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. AV 19 VolOffset_T and AV 20 VolOffset_P shift the airflow setpoint by a percentage of a configured range.

Network setup

Watch out for

TROX EASYLAB TCU3 room supply/extract controller with room management function (RMF) (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.

63 of 63 shown
Type
AnalogBinaryMulti-state
Access
Show
TROX EASYLAB TCU3 room supply/extract controller with room management function (RMF) (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
MV6Sunblindsun blind, current stateWrite1=Sunblind_NoPreset, 2=Sunblind_Close, 3=Sunblind_Open
AV1VolflowSetvolume flow, set valuel/sRead
AVmin2VolflowActvolume flow, current valuel/sRead
AV3VolTotalExhvolume flow, total extract air valuel/sRead
AV4VolTotalSupvolume flow, total supply air valuel/sRead
AV5PressSetpressure, set valuePaRead
AVmin6PressActpressure, current valuePaRead
AV10DampPosdamper, 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
AV19VolOffset_Tvolume flow, offset, temperature%Write
AV20VolOffset_Pvolume flow, offset, pressure%Write
AV21SystemDevicestotal number of system devicesRead
AV22VolflowExhextract airflow input from an external devicel/sWrite
AV23VolflowSupsupply airflow input from an external devicel/sWrite
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
BVmin2SummaryAlarmsummary of alarmsRead0=Normal, 1=Alarm
BVmin3PressAlarmpressure alarmRead0=Normal, 1=Alarm
BVmin4ManOP_Disablemanual operation, disableWrite0=Manual control enabled on panel, 1=Manual control disabled
BVmin5PressSetSelpressure selection between two internal set pointsWrite0=Setpoint1, 1=Setpoint2
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
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 Room RMF 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 room supply/extract controller with room management function (RMF) (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 room supply/extract controller with room management function (RMF) (EM-BAC-MOD-01, BACnet MS/TP)

How many BACnet points does the TROX EASYLAB TCU3 room supply/extract controller with room management function (RMF) (EM-BAC-MOD-01, BACnet MS/TP) have?

This list has 63 BACnet objects: 29 analog values, 29 binary values, 5 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which TROX EASYLAB TCU3 room supply/extract controller with room management function (RMF) (EM-BAC-MOD-01, BACnet MS/TP) BACnet points are writable?

16 of the 63 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 room supply/extract controller with room management function (RMF) (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_RR_with_RMF_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 room supply/extract controller with room management function (RMF) (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); BV 5 PressSetSel (Selects stored pressure setpoint 1 or 2); 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 6 PressAct (Measured room or duct pressure, Pa); BV 2 SummaryAlarm (Summary alarm of the room system); BV 1 LocalAlarm (Alarm on this controller); BV 3 PressAlarm (Pressure alarm).

How do I enable BMS control of the TROX EASYLAB TCU3 room supply/extract controller with room management function (RMF) (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 room supply/extract controller with room management function (RMF) (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. AV 19 VolOffset_T and AV 20 VolOffset_P shift the airflow setpoint by a percentage of a configured range.

How do I check these points on the real EASYLAB TCU3 room supply/extract controller with room management function (RMF) (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_RR_with_RMF_V4_1. Object names, instances and units are reproduced as published; descriptions are our own.