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Room pressure monitor · BACnet points list
Siemens BACnet Room Pressure Monitor (RPM / SRCM) BACnet points list
Updated 28 October 2026
A single-room differential pressure monitor sold by Siemens as a standard BACnet device. Its point map has one pressure input, alarm limits and timers, a door input, an alarm-active flag, relay and alarm settings, and selectors for the analog output type, pressure unit and room type. It has no application point; the field panel assigns a project application number.
This page lists 19 BACnet objects for the Siemens BACnet Room Pressure Monitor (RPM / SRCM) — 17 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Siemens’s own free documentation, linked below.
- Manufacturer
- Siemens
- Model
- BACnet Room Pressure Monitor (RPM / SRCM)
- Equipment
- Room pressure monitor
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 19 (17 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Also known as
- Siemens RPM, SRCM, Setra SRCM, Room Condition Monitor
BMS integration notes: Siemens BACnet Room Pressure Monitor (RPM / SRCM)
Read the room pressure (AI 1), the door input (BI 1) and the alarm-active flag (BV 2). Alarm limits, delay and the pressure unit can be set over BACnet. Event enrollments 1-3 can send alarm, out-of-limit and door-open notifications.
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 | AI_1 | Room differential pressure | Read |
| BI 1 | DOOR STATUS | Door open/closed input | Read |
| BV 2 | ALARM ACTIVE | Pressure alarm active | Write |
Network setup
- The device has no application point; the SRCM is set up at the field panel with a project-specific application number from 10000 to 11999.
Watch out for
- Changing the pressure unit (MV 2) changes the units of the pressure reading and the alarm limits.
Siemens BACnet Room Pressure Monitor (RPM / SRCM) 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 | AI_1 | Room differential pressure shown on the display | inH2O | Read | |
| AV | 1 | AV_1 | Analog output value (4-20 mA, 0-5 V or 0-10 V) | Write | ||
| AV | 2 | AV_2 | Pressure alarm low limit | inH2O | Write | |
| AV | 3 | AV_3 | Pressure alarm high limit | inH2O | Write | |
| AV | 4 | AV_4 | Alarm mute time-out | s | Write | |
| AV | 5 | ALARM DELAY | Alarm delay | s | Write | |
| AV | 6 | AV_6 | Buzzer volume, 0-4 | Write | ||
| BImin | 1 | DOOR STATUS | Door status input | Read | ||
| BV | 1 | BV_1 | Relay operate | Write | ||
| BVmin | 2 | ALARM ACTIVE | Alarm active | Write | ||
| BV | 3 | BV_3 | Enabled or disabled | Write | 0=Disabled, 1=Enabled | |
| BV | 4 | BV_4 | Audible alarm | Write | ||
| BV | 5 | LATCH ALARM | Latch alarm | Write | ||
| BV | 6 | DOOR CONTACT | Door contact | Write | ||
| BV | 7 | BV_7 | Supervisor password | Write | ||
| BV | 8 | BV_8 | Operator password | Write | ||
| MV | 1 | MV_1 | Analog output signal type | Write | 1=4-20mA, 2=0-5Vdc, 3=0-10Vdc | |
| MV | 2 | MV_2 | Pressure unit | Write | 1=inWC, 2=Pa, 3=CmWC | |
| MV | 3 | ROOM TYPE | Room pressurization type | Write | 1=Positive, 2=Negative, 3=Neutral |
No points match these filters.
Integration notes
- The point map has no access column; AI and BI are shown read-only and AV, BV and MV writable (the map lists them as logical outputs).
- Pressure units follow the pressure unit selector MV 2 (inWC, Pa or cmWC); inH2O is shown here. The map's footnote calls this point 18 (MV_3); point 18 is MV_2 in the table.
- The analog output units (mA or V) follow MV 1.
- Most binary objects print only placeholder state text ("Inactive Text" / "Active Text"); those states are left blank here.
- Besides the 19 points, the map lists event enrollments and notification classes 1-3 for alarm, pressure out of limit and door open.
- The point map does not name the data link. Setra's PICS for the SRCM (Room Condition Monitor, SS-SRCM-BAC-PICS Rev A) lists BACnet MS/TP master at 9600, 19200, 38400 and 76800 baud.
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. Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the BACnet Room Pressure Monitor (RPM / SRCM) 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 Siemens BACnet Room Pressure Monitor (RPM / SRCM)
How many BACnet points does the Siemens BACnet Room Pressure Monitor (RPM / SRCM) have?
This list has 19 BACnet objects: 1 analog input, 6 analog values, 1 binary input, 8 binary values, 3 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Siemens BACnet Room Pressure Monitor (RPM / SRCM) BACnet points are writable?
17 of the 19 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 Siemens BACnet Room Pressure Monitor (RPM / SRCM) BACnet documentation?
The source is BACnet Room Pressure Monitor Point Map (140-1300), revision 2014-09-03, published free by Siemens at https://sid.siemens.com/api/khub/documents/mfqHydSg0AIgD_1KIpx8tg/content.
What are the minimum BACnet points to integrate the Siemens BACnet Room Pressure Monitor (RPM / SRCM)?
Start with AI 1 AI_1 (Room differential pressure); BI 1 DOOR STATUS (Door open/closed input); BV 2 ALARM ACTIVE (Pressure alarm active).
How do I check these points on the real BACnet Room Pressure Monitor (RPM / SRCM)?
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 Siemens BACnet points lists
- VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Application 6630 (VAV Cooling Only)
Pressure-independent cooling-only single-duct VAV boxes on the Siemens BACnet ATEC actuating terminal equipment controller (550-430PA / 550-431PA).
Also known as: ATEC 6630, Application 6630, App 6630, 550-430PA, 550-431PA - VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Application 6631 (VAV Cooling and Heating, Changeover)
Pressure-independent single-duct VAV boxes on changeover systems (cool air in cooling, warm air in heating) on the Siemens BACnet ATEC controller (550-430PA / 550-431PA).
Also known as: ATEC 6631, Application 6631, App 6631, 550-430PA, 550-431PA - VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Application 6632 (VAV with Electric Heat or Baseboard Radiation)
Single-duct VAV boxes with up to three stages of electric reheat, or baseboard / perimeter heat (electric or 2-position valve), on the Siemens BACnet ATEC controller (550-430PA / 550-431PA).
Also known as: ATEC 6632, Application 6632, App 6632, 550-430PA, 550-431PA - VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Application 6633 (VAV with Hot Water Heat)
Single-duct VAV boxes with one or two hot water reheat valves (floating or 0-10 V) on the Siemens BACnet ATEC controller (550-430PA / 550-431PA).
Also known as: ATEC 6633, Application 6633, App 6633, 550-430PA, 550-431PA - Fan-powered VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Application 6635 (Series Fan with Hot Water Reheat)
Series fan-powered VAV boxes with a hot water reheat valve on the Siemens BACnet ATEC controller (550-430PA / 550-431PA).
Also known as: ATEC 6635, Application 6635, App 6635, 550-430PA, 550-431PA - Fan-powered VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Application 6637 (Parallel Fan with Hot Water Reheat)
Parallel fan-powered VAV boxes with a hot water reheat valve on the Siemens BACnet ATEC controller (550-430PA / 550-431PA).
Also known as: ATEC 6637, Application 6637, App 6637, 550-430PA, 550-431PA - Fan-powered VAV terminal unit controller
Siemens BACnet ATEC VAV Controller - Applications 6634/6636 (Series or Parallel Fan with Electric Heat)
Series (6634) or parallel (6636) fan-powered VAV boxes with up to three stages of electric heat on the Siemens BACnet ATEC controller (550-430PA / 550-431PA).
Also known as: ATEC 6634, ATEC 6636, Application 6634, Application 6636, App 6634, App 6636, 550-430PA, 550-431PA - Constant volume terminal unit controller
Siemens BACnet PTEC Constant Volume Controller - Application 6660 (Constant Volume Cooling Only)
Cooling-only constant volume terminal boxes on the Siemens BACnet PTEC constant volume controller 550-498PA.
Also known as: PTEC 6660, Application 6660, App 6660, 550-498PA, Siemens constant volume box - Constant volume terminal unit controller
Siemens BACnet PTEC Constant Volume Controller - Application 6662 (Constant Volume with Electric Heat)
Constant volume terminal boxes with up to three stages of electric reheat on the Siemens BACnet PTEC constant volume controller 550-498PA.
Also known as: PTEC 6662, Application 6662, App 6662, 550-498PA, Siemens constant volume electric reheat - Constant volume terminal unit controller
Siemens BACnet PTEC Constant Volume Controller - Application 6663 (Constant Volume with Hot Water Heat)
Constant volume terminal boxes with an airflow sensor and a hot water reheat valve on the Siemens BACnet PTEC constant volume controller 550-498PA.
Also known as: PTEC 6663, Application 6663, App 6663, 550-498PA, Siemens constant volume box, CAV box - Dual duct VAV terminal unit controller
Siemens BACnet PTEC Dual Duct Controller - Application 6667 (2 Air Velocity Sensors, VAV Two Inlets, Optional Reheat)
Dual duct VAV boxes with an air velocity sensor in each inlet and optional hot water or electric reheat on the Siemens BACnet PTEC dual duct controller 550-497PA.
Also known as: PTEC 6667, Application 6667, App 6667, 550-497PA, Siemens dual duct VAV - Dual duct VAV terminal unit controller
Siemens BACnet PTEC Dual Duct Controller - Application 6669 (2 Air Velocity Sensors, VAV Changeover)
Dual duct VAV boxes with hot and cold duct dampers, two air velocity sensors and optional hot water or electric reheat on the Siemens BACnet PTEC controller 550-497PA.
Also known as: PTEC 6669, Application 6669, App 6669, 550-497PA, Siemens dual duct VAV - Heat pump unit controller
Siemens BACnet PTEC Heat Pump Controller - Application 6673 (Multi-Compressor, Mixed Air, Reversing Valve)
Water-to-air and other packaged heat pumps with up to three compressors, a reversing valve, optional electric heat and mixed air damper on the Siemens BACnet PTEC heat pump multi-stage controller 550-490PA.
Also known as: PTEC 6673, Application 6673, App 6673, 550-490PA, Siemens PTEC heat pump, Application 2583 - Heat pump unit controller
Siemens BACnet PTEC Heat Pump Controller - Application 6674 (Multiple Heating and Cooling, Mixed Air, Internal Reversing Valve)
Heat pumps with an internally controlled reversing valve, up to two heating and two cooling compressor outputs, optional electric heat and mixed air damper, on the Siemens BACnet PTEC heat pump multi-stage controller 550-490PA; also small air handlers with 2-position heating and cooling.
Also known as: PTEC 6674, Application 6674, App 6674, 550-490PA, Siemens PTEC heat pump, Application 2584 - VAV terminal unit controller
Siemens BACnet PTEC Unit Conditioner - Application 6642 (VAV Pressure Dependent Cooling or Heating)
Pressure-dependent VAV boxes (no airflow sensor) that get cool or warm supply air from the air handler, on the Siemens BACnet PTEC unit conditioner controller 550-496PA.
Also known as: PTEC 6642, Application 6642, App 6642, 550-496PA, Siemens pressure dependent VAV - Pressure-dependent VAV terminal unit controller
Siemens BACnet PTEC Unit Conditioner - Application 6643 (VAV Pressure Dependent with Hot Water Heat)
Pressure-dependent VAV boxes with one or two hot water reheat valves, run on the Siemens BACnet PTEC unit conditioner controller 550-496PA.
Also known as: PTEC 6643, Application 6643, App 6643, 550-496PA, Siemens pressure dependent VAV - Fan coil unit controller
Siemens BACnet PTEC Unit Conditioner - Application 6644 (Two-Pipe Fan Coil Unit Cooling or Heating)
Two-pipe changeover fan coil units with one valve for heating or cooling and an optional second heating valve, on the Siemens BACnet PTEC unit conditioner controller 550-496PA.
Also known as: PTEC 6644, Application 6644, App 6644, 550-496PA, Siemens 2-pipe fan coil, Unit Conditioner - Fan coil unit controller
Siemens BACnet PTEC Unit Conditioner - Application 6645 (Fan Coil Unit Cooling and Heating)
Four-pipe fan coil units with separate cooling and heating valves on the Siemens BACnet PTEC unit conditioner controller 550-496PA.
Also known as: PTEC 6645, Application 6645, App 6645, 550-496PA, Siemens PTEC fan coil, Unit Conditioner - Fan coil unit controller
Siemens BACnet PTEC Unit Conditioner - Application 6646 (Fan Coil Unit Two-Stage Cooling and Electric Heat)
Fan coil units with up to two cooling stages (2-position valves or compressors) and up to three electric heat stages, on the Siemens BACnet PTEC unit conditioner controller 550-496PA.
Also known as: PTEC 6646, Application 6646, App 6646, 550-496PA, Siemens fan coil electric heat, Unit Conditioner - Fan coil unit controller
Siemens BACnet PTEC Unit Conditioner - Application 6648 (Fan Coil Cooling and Electric Heat or VAV Pressure Dependent with Electric Heat)
Fan coil units with a floating cooling valve and up to three electric heat stages, or pressure-dependent VAV boxes with a cooling damper and electric heat, on the Siemens BACnet PTEC unit conditioner controller 550-496PA.
Also known as: PTEC 6648, Application 6648, App 6648, 550-496PA, Siemens fan coil electric heat, Unit Conditioner - Unit ventilator (terminal unit) controller
Siemens BACnet PTEC Unit Vent Controller - Application 6676 (Heating and/or Chilled Water Cooling, ASHRAE Cycle III)
Unit ventilators with a chilled water coil and/or a hot water, steam or electric heating coil, run to ASHRAE Cycle III on the Siemens BACnet PTEC unit vent controller 550-493PA.
Also known as: PTEC 6676, Application 6676, App 6676, 550-493PA, Siemens unit ventilator, ASHRAE Cycle III - Unit ventilator (terminal unit) controller
Siemens BACnet PTEC Unit Vent Controller - Application 6677 (Heating and DX Cooling, ASHRAE Cycles I and II)
Unit ventilators with a DX cooling coil and/or a hot water, steam or electric heating coil, run to ASHRAE Cycles I and II on the Siemens BACnet PTEC unit vent controller 550-493PA.
Also known as: PTEC 6677, Application 6677, App 6677, 550-493PA, Siemens unit ventilator DX, ASHRAE Cycle II - Unit ventilator (terminal unit) controller
Siemens BACnet PTEC Unit Vent Controller - Application 6679 (Heating and Cooling, Nesbitt Cycle W)
Classroom unit ventilators with a hot water or steam heating coil, optional chilled water or DX cooling and an outdoor air damper, run to Nesbitt Cycle W on the Siemens BACnet PTEC unit vent controller 550-493PA.
Also known as: PTEC 6679, Application 6679, App 6679, 550-493PA, Siemens unit ventilator, Nesbitt Cycle W - VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6600 (VAV Cooling Only)
Pressure-independent single-duct cooling-only VAV boxes on the Siemens BACnet PTEC terminal box controller 550-495PA.
Also known as: PTEC 6600, Application 6600, App 6600, 550-495PA, Siemens VAV cooling only - VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6601 (VAV Heating or Cooling)
Pressure-independent single-duct VAV boxes (cooling or heating with changeover supply air) on the Siemens BACnet PTEC terminal box controller 550-495PA.
Also known as: PTEC 6601, Application 6601, App 6601, 550-495PA, Siemens PTEC VAV - VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6602 (VAV with Electric Reheat or Baseboard Radiation)
Pressure-independent single-duct VAV boxes with up to three stages of electric reheat or baseboard radiation on the Siemens BACnet PTEC terminal box controller 550-495PA.
Also known as: PTEC 6602, Application 6602, App 6602, 550-495PA, Siemens VAV electric reheat - VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6603 (VAV with Hot Water Reheat)
Pressure-independent single-duct VAV boxes with one or two floating hot water reheat valves on the Siemens BACnet PTEC terminal box controller 550-495PA.
Also known as: PTEC 6603, Application 6603, App 6603, 550-495PA, Siemens VAV hot water reheat - Fan-powered VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6606 (Parallel Fan with Electric Heat)
Parallel fan-powered VAV boxes with up to three stages of electric heat on the Siemens BACnet PTEC terminal box controller 550-495PA.
Also known as: PTEC 6606, Application 6606, App 6606, 550-495PA, Siemens parallel fan VAV, fan-powered VAV electric heat - Fan-powered VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6607 (Parallel Fan with Hot Water Reheat)
Parallel fan-powered VAV boxes with a floating hot water reheat valve on the Siemens BACnet PTEC terminal box controller 550-495PA.
Also known as: PTEC 6607, Application 6607, App 6607, 550-495PA, Siemens parallel fan VAV hot water - VAV / chilled beam terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6659 (VAV / Chilled Beam with CO2 Demand Control Ventilation)
Single-duct VAV boxes and active chilled beams with a chilled water valve, a hot water valve and room CO2 demand control ventilation on the Siemens BACnet PTEC controller 550-494PA.
Also known as: PTEC 6659, Application 6659, App 6659, 550-494PA, Siemens chilled beam controller, Siemens VAV demand control ventilation - VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6680 (VAV with CO2 Monitoring, AOV or Floating Reheat)
Single-duct VAV boxes with one or two 0-10 V or floating heating devices and optional room CO2 monitoring on the Siemens BACnet PTEC controller 550-499PA.
Also known as: PTEC 6680, Application 6680, App 6680, 550-499PA, Siemens VAV CO2 monitoring - Fan-powered VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6681 (Series Fan, CO2 Monitoring, AOV or Floating Reheat)
Series fan-powered VAV boxes with 0-10 V or floating reheat and optional CO2 monitoring on the Siemens BACnet PTEC controller 550-499PA.
Also known as: PTEC 6681, Application 6681, App 6681, 550-499PA, Siemens series fan VAV - Fan-powered VAV terminal unit controller
Siemens BACnet PTEC VAV Controller - Application 6682 (Parallel Fan, CO2 Monitoring, AOV or Floating Reheat)
Parallel fan-powered VAV boxes with one or two 0-10 V or floating heating devices and optional room CO2 monitoring on the Siemens BACnet PTEC controller 550-499PA.
Also known as: PTEC 6682, Application 6682, App 6682, 550-499PA, Siemens parallel fan VAV CO2 - Variable frequency drive (HVAC)
Siemens BT300 HVAC drive (BACnet)
Siemens Building Technologies BT300 HVAC variable frequency drives, all voltage and power ranges, BACnet firmware 1.1.
Also known as: BT300, Siemens BT300, BT300 VFD, BT300 frequency converter, BT300 HVAC drive - Networked room thermostat
Siemens RDY2000BN BACnet Commercial Thermostat (Applications 14900 / 14901)
Siemens RDY2000BN 24 Vac commercial thermostats for conventional staged rooftop units (application 14900) and heat pumps (application 14901).
Also known as: RDY2000BN, RDY2000, Application 14900, Application 14901 - Variable frequency drive (HVAC)
Siemens SINAMICS G120 CU230P-2 HVAC (BACnet MS/TP)
SINAMICS G120 / G120P inverters with the CU230P-2 HVAC control unit using its RS-485 port for BACnet MS/TP.
Also known as: G120P, SINAMICS G120P, CU230P-2, CU230P-2 HVAC, 6SL3243-0BB30-1HA3, A5E02430659B
Source: BACnet Room Pressure Monitor Point Map · 140-1300 · rev. 2014-09-03. Object names, instances and units are reproduced as published; descriptions are our own.