Easy BACnet- Home
- BACnet points lists
- Integra Metering
- CALEC ST III (BACnet MS/TP)
Thermal energy meter (BTU calculator) · BACnet points list
Integra Metering CALEC ST III (BACnet MS/TP) BACnet points list
Updated 12 November 2026Unofficial source
The CALEC ST III is a heat and cooling energy calculator that pairs two temperature sensors with a flow meter. Its BACnet MS/TP interface reports energy, volume, mass, auxiliary counters, power, flows, hot/cold temperatures, temperature difference, density, a second power and flow channel and eight tariff registers as Analog Inputs, plus two commandable relay Binary Outputs. Which objects are present depends on the CALEC configuration.
This page lists 27 BACnet objects for the Integra Metering CALEC ST III (BACnet MS/TP) — 2 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from a copy of Integra Metering’s documentation hosted by BACnet International, not by Integra Metering itself, so treat it as unofficial.
- Manufacturer
- Integra Metering
- Model
- CALEC ST III (BACnet MS/TP)
- Equipment
- Thermal energy meter (BTU calculator)
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 27 (2 writable)
- Transport
- BACnet MS/TP
- Firmware
- BACnet firmware V3.00.01, application V3.01.11 (PICS-03)
- Also known as
- CALEC ST III, CALEC ST 3, CALEC STIII, CALEC ST3, Calec ST III BACnet, CALEC ST FAMILY BACnet MSTP
- Source document
- CALEC ST III - BACnet MS/TP Protocol Implementation Conformance Statement · PICS-03 · rev. 2026-09-04 (unofficial copy, hosted by BACnet International)
Reference only, provided as-is: verify against Integra Metering’s current documentation and the live device before use. Not official Integra Metering information. Terms of use.
BMS integration notes: Integra Metering CALEC ST III (BACnet MS/TP)
Set the MS/TP address and baud on the CALEC, then read energy, power, flow and the two temperatures. Check each AI's Units property since units are selectable.
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 | AI-0-Energy | Accumulated energy | Read |
| AI 8 | AI-8-Power | Thermal power | Read |
| AI 9 | AI-9-Volume flow | Volume flow | Read |
| AI 11 | AI-11-Temperature hot | Hot side temperature | Read |
| AI 12 | AI-12-Temperature cold | Cold side temperature | Read |
| AI 13 | AI-13-Temperature difference | Temperature difference, K | Read |
| AI 2 | AI-2-Volume | Accumulated volume | Read |
Network setup
- MS/TP master or slave, 9600-115200 baud; Max_Master default 127, Max_Info_Frames 1.
- Device object name defaults to Calec ST III BACnet; vendor ID 431.
Watch out for
- Units are writable on each AI; changing them changes what the BMS reads.
Integra Metering CALEC ST III (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.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AImin | 0 | AI-0-Energy | Energy (display E1) | energy unit, selectable | Read | |
| AI | 1 | AI-1 Energy 2/Tariff 1 | Energy 2 / tariff 1 (E2) | energy unit, selectable | Read | |
| AImin | 2 | AI-2-Volume | Volume (V1) | volume unit, selectable | Read | |
| AI | 3 | AI-3 Volume 2/Tariff 1 | Volume 2 / tariff 1 (V2) | volume unit, selectable | Read | |
| AI | 4 | AI-4-Mass | Mass (M1); metric tons sent as short tons | mass unit, selectable | Read | |
| AI | 5 | AI-5-Auxiliary counter 1 | Auxiliary counter 1 (H1) | selectable | Read | |
| AI | 6 | AI-6-Auxiliary counter 2 | Auxiliary counter 2 (H2) | selectable | Read | |
| AImin | 8 | AI-8-Power | Power (P1) | power unit, selectable | Read | |
| AImin | 9 | AI-9-Volume flow | Volume flow (Qv1) | flow unit, selectable | Read | |
| AI | 10 | AI-10-Mass flow | Mass flow (Qm1) | mass flow unit, selectable | Read | |
| AImin | 11 | AI-11-Temperature hot | Hot side temperature (Th) | °C, K or °F | Read | |
| AImin | 12 | AI-12-Temperature cold | Cold side temperature (Tc) | °C, K or °F | Read | |
| AImin | 13 | AI-13-Temperature difference | Temperature difference (dT) | K | Read | |
| AI | 14 | AI-14-Density | Density (DEN) | kg/m³ | Read | |
| AI | 15 | AI-15 Energy tariff 2 | Energy tariff 2 (E3) | energy unit, selectable | Read | |
| AI | 16 | AI-16-Power 2 | Power 2 (P2) | power unit, selectable | Read | |
| AI | 17 | AI-17-Volume flow 2 | Volume flow 2 (Qv2) | selectable | Read | |
| AI | 18 | AI-18-Energy/Volume tariff R1 | Energy or volume tariff register R1 | selectable | Read | |
| AI | 19 | AI-19-Energy/Volume tariff R2 | Energy or volume tariff register R2 | selectable | Read | |
| AI | 20 | AI-20-Energy/Volume tariff R3 | Energy or volume tariff register R3 | selectable | Read | |
| AI | 21 | AI-21-Energy/Volume tariff R4 | Energy or volume tariff register R4 | selectable | Read | |
| AI | 22 | AI-22-Energy/Volume tariff R5 | Energy or volume tariff register R5 | selectable | Read | |
| AI | 23 | AI-23-Energy/Volume tariff R6 | Energy or volume tariff register R6 | selectable | Read | |
| AI | 24 | AI-24-Energy/Volume tariff R7 | Energy or volume tariff register R7 | selectable | Read | |
| AI | 25 | AI-25-Energy/Volume tariff R8 | Energy or volume tariff register R8 | selectable | Read | |
| BO | 0 | BO-0 | Relay 1 | Command | ||
| BO | 1 | BO-1 | Relay 2 | Command |
No points match these filters.
Object ID lookup: Integra Metering CALEC ST III point IDs by name
AI0AI-0-EnergyAI1AI-1 Energy 2/Tariff 1AI2AI-2-VolumeAI3AI-3 Volume 2/Tariff 1AI4AI-4-MassAI5AI-5-Auxiliary counter 1AI6AI-6-Auxiliary counter 2AI8AI-8-PowerAI9AI-9-Volume flowAI10AI-10-Mass flowAI11AI-11-Temperature hotAI12AI-12-Temperature coldAI13AI-13-Temperature differenceAI14AI-14-DensityAI15AI-15 Energy tariff 2AI16AI-16-Power 2AI17AI-17-Volume flow 2AI18AI-18-Energy/Volume tariff R1AI19AI-19-Energy/Volume tariff R2AI20AI-20-Energy/Volume tariff R3AI21AI-21-Energy/Volume tariff R4AI22AI-22-Energy/Volume tariff R5AI23AI-23-Energy/Volume tariff R6AI24AI-24-Energy/Volume tariff R7AI25AI-25-Energy/Volume tariff R8BO0BO-0BO1BO-1
Integration notes
- Object names follow the pattern AI-x-<description>; names are given as printed in the extended AI table (AI-1, AI-3 and AI-15 are printed without the second hyphen).
- Units are writable per object from an allowed list (energy, volume, power, flow units); the PICS gives no default unit.
- There is no AI 7. AI 16-25 (power 2, flow 2, tariff registers R1-R8) are new compared with the CALEC ST II list.
- Object availability depends on the CALEC function (standard, mass, flow) and input types; see the availability table in the PICS.
- Mass and mass flow are converted from metric tons to US short tons over BACnet.
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 CALEC ST III (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 Integra Metering CALEC ST III (BACnet MS/TP)
How many BACnet points does the Integra Metering CALEC ST III (BACnet MS/TP) have?
This list has 27 BACnet objects: 25 analog inputs, 2 binary outputs. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Integra Metering CALEC ST III (BACnet MS/TP) BACnet points are writable?
2 of the 27 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 Integra Metering CALEC ST III (BACnet MS/TP) BACnet documentation?
Integra Metering does not publish it on its own website. This list comes from CALEC ST III - BACnet MS/TP Protocol Implementation Conformance Statement (PICS-03), revision 2026-09-04, a copy hosted by BACnet International at https://www.bacnetinternational.net/catalog/manu/integra%20metering%20ag/PICS%202026-09-04-CALEC%20ST%20III%20BACNET%20MS-TP%20PICS-03.pdf. Ask Integra Metering or its representative for the current revision.
What are the minimum BACnet points to integrate the Integra Metering CALEC ST III (BACnet MS/TP)?
Start with AI 0 AI-0-Energy (Accumulated energy); AI 8 AI-8-Power (Thermal power); AI 9 AI-9-Volume flow (Volume flow); AI 11 AI-11-Temperature hot (Hot side temperature); AI 12 AI-12-Temperature cold (Cold side temperature); AI 13 AI-13-Temperature difference (Temperature difference, K); AI 2 AI-2-Volume (Accumulated volume).
How do I check these points on the real CALEC ST III (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 Integra Metering BACnet points lists
Source: CALEC ST III - BACnet MS/TP Protocol Implementation Conformance Statement · PICS-03 · rev. 2026-09-04. Object names, instances and units are reproduced as published; descriptions are our own.