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Damper actuator · BACnet points list
Frakta DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU) BACnet points list
Updated 12 November 2026
The DM.1.1-MB actuators are 24 V modulating air damper actuators from 8 to 32 Nm. A DIP switch selects BACnet MS/TP or Modbus RTU. Over BACnet the BMS overrides the analog control input (AI 0) to position the damper and reads position, run, blocked and dew point states; a watchdog decides what happens if the BMS stops writing.
This page lists 14 BACnet objects for the Frakta DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU) — 7 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Frakta’s own free documentation, linked below.
- Manufacturer
- Frakta
- Model
- DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU)
- Equipment
- Damper actuator
- Equipment type
- Valves & actuators
- BACnet objects
- 14 (7 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Also known as
- DM.1.1-MB, DMS1.1-MB, DM1.1-MB, DML1.1-MB, DMG1.1-MB, Frakta DM1 MB, Frakta damper actuator BACnet
Reference only, provided as-is: verify against Frakta’s current documentation and the live device before use. Not official Frakta information. Terms of use.
BMS integration notes: Frakta DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU)
Switch DIP 4 to BACnet MS/TP, set the address on the address switches, then write the position command to AI 0 (0-10) at least every 60 s. Read AV 0 position and BV 3 for a blocked actuator. Set MV 1 and MV 2 to decide how the watchdog behaves.
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 0 | Analog_Input | Position command, 0-10 (rewrite within 60 s) | Write |
| AV 0 | Positison | Damper position, 0-100 % | Read |
| BV 0 | Run | Motor running | Read |
| BV 3 | Blocked | Actuator blocked | Read |
Enable & remote start
Mode switch position 4 selects BACnet MS/TP (the other setting is Modbus RTU).
Heartbeat & communication loss
AI 0 falls back to the physical analog input if not rewritten within 60 s. The watchdog (AV 1 WD_timeout, MV 1 WD_mode, MV 2 WD_action) can close, open, follow the analog input or do nothing when it trips; the manual also states the actuator closes if the control value doesn't change within 60 s.
Network setup
- Default bus speed 9600 bps; change it with MV 0.
- Restore defaults: power off, set address 15 (DEC), power on.
- Mode switch also sets 0-10/2-10 V range, rotation direction and voltage/current input.
Watch out for
- A blocked actuator retries after 60 s or when driven the other way.
Frakta DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU) 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 | 0 | Analog_Input | Control input 0-10; writable override, reverts after 60 s without a write | V | Write | |
| AO | 0 | Analog_Output | Position feedback output | V | Read | |
| AVmin | 0 | Positison | Actual position from the potentiometer, 0-100 | % | Read | |
| AV | 1 | WD_timeout | Watchdog timeout | Write | ||
| BVmin | 0 | Run | Motor running | Read | ||
| BV | 1 | Ain_Range | Control range from jumpers (0-10 V or 2-10 V) | Read | ||
| BV | 2 | Reverse | Direction of rotation from jumpers | Read | ||
| BVmin | 3 | Blocked | Actuator blocked; retries after 60 s or on reverse command | Read | ||
| BV | 4 | Dew_point | Dew point sensor state | Read | ||
| MV | 0 | Bus speed | Bus speed | Write | 2.4 kbit, 4.8 kbit, 9.6 kbit (default), 14.4 kbit, 19.2 kbit, 28.8 kbit, 38.4 kbit, 57.6 kbit, 76.8 kbit, 115.2 kbit, 230.4 kbit, 250 kbit, 500 kbit | |
| MV | 1 | WD_mode | What resets the watchdog | Write | Set command, Com online | |
| MV | 2 | WD_action | Action when the watchdog trips | Write | Close, Open, Analog in, Nothing | |
| MV | 3 | DP_config | Use the analog input as a dew point sensor | Write | Inactive, Active Close, Active Open | |
| MV | 4 | DP_polarity | Dew point signal polarity | Write | Normal 0, Normal 1 |
No points match these filters.
Object ID lookup: Frakta DM.1.1-MB modulating damper actuators point IDs by name
Integration notes
- AV 0 is printed 'Positison' in the object list.
- AI 0 and AO 0 exist only on modulating (analog controlled) actuators.
- AI 0 takes 0-10; without a new write within 60 s it returns to the physical analog input value.
- Default bus speed 9600 bps.
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 DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU) 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 Frakta DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU)
How many BACnet points does the Frakta DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU) have?
This list has 14 BACnet objects: 1 analog input, 1 analog output, 2 analog values, 5 binary values, 5 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Frakta DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU) BACnet points are writable?
7 of the 14 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 Frakta DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU) BACnet documentation?
The source is Modulating control actuators DM.1.1-MB Modbus / BACnet series, revision Juli 2022, published free by Frakta at https://www.frakta.de/wp-content/uploads/2022/07/DM1_MB_englisch_new_190722.pdf.
What are the minimum BACnet points to integrate the Frakta DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU)?
Start with AI 0 Analog_Input (Position command, 0-10 (rewrite within 60 s)); AV 0 Positison (Damper position, 0-100 %); BV 0 Run (Motor running); BV 3 Blocked (Actuator blocked).
How do I enable BMS control of the Frakta DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU)?
Mode switch position 4 selects BACnet MS/TP (the other setting is Modbus RTU).
Does the Frakta DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU) need a BACnet heartbeat or have a communication timeout?
AI 0 falls back to the physical analog input if not rewritten within 60 s. The watchdog (AV 1 WD_timeout, MV 1 WD_mode, MV 2 WD_action) can close, open, follow the analog input or do nothing when it trips; the manual also states the actuator closes if the control value doesn't change within 60 s.
How do I check these points on the real DM.1.1-MB modulating damper actuators (BACnet MS/TP / Modbus RTU)?
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.
Source: Modulating control actuators DM.1.1-MB Modbus / BACnet series · rev. Juli 2022. Object names, instances and units are reproduced as published; descriptions are our own.