Easy BACnet- Home
- BACnet points lists
- Cleaver-Brooks
- HSC Boiler Interface Module (ProtoNode)
Boiler interface module via BACnet gateway · BACnet points list
Cleaver-Brooks HSC Boiler Interface Module (ProtoNode) BACnet points list
Updated 7 November 2026Unofficial source
The ProtoNode maps the HSC boiler interface module to BACnet: boiler status, alarm word, hours, cycles, inlet and outlet temperature, firing rate and the module's inputs and outputs. Writable AVs set DHW setpoints and enables, a remote setpoint and enable, and a heartbeat.
This page lists 40 BACnet objects for the Cleaver-Brooks HSC Boiler Interface Module (ProtoNode) — 9 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from a copy of Cleaver-Brooks’s documentation hosted by watmfg.com, not by Cleaver-Brooks itself, so treat it as unofficial.
- Manufacturer
- Cleaver-Brooks
- Model
- HSC Boiler Interface Module (ProtoNode)
- Equipment
- Boiler interface module via BACnet gateway
- Equipment type
- Boilers & water heaters
- BACnet objects
- 40 (9 writable)
- Transport
- BACnet MS/TP, BACnet IP
- Firmware
- Not stated
- Default device instance
- 50000 + Modbus Node-ID
- Also known as
- Boiler Interface Module, HSC Boiler Interface, BIM, ProtoNode RER, 750-426
- Source document
- Cloud Enabled ProtoNode Gateway Startup Guide (RER/LER) for interfacing Cleaver-Brooks products · 750-426 · rev. 03/2018 (unofficial copy, hosted by watmfg.com)
Reference only, provided as-is: verify against Cleaver-Brooks’s current documentation and the live device before use. Not official Cleaver-Brooks information. Terms of use.
BMS integration notes: Cleaver-Brooks HSC Boiler Interface Module (ProtoNode)
Enable the boiler (AV 8), write the remote setpoint (AV 5) and keep the heartbeat (AV 9) updated. Read boiler status, outlet temperature, firing rate and the alarm output.
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 |
|---|---|---|---|
| AV 8 | Remote Enable | Remote enable | Write |
| AV 5 | Remote Setpoint Write | Remote setpoint | Write |
| AV 9 | Heartbeat Write Tag | Heartbeat written by the BMS | Write |
| AI 1 | Boiler Status | Boiler status | Read |
| BI 6 | Boiler Run Output | Boiler run output | Read |
| AI 10 | Outlet Temp | Outlet temperature | Read |
| AI 11 | Firing Rate | Firing rate | Read |
| BI 4 | Alarm Output | Alarm output | Read |
| AI 2 | Alarm Word | Alarm word | Read |
Heartbeat & communication loss
AV 9 Heartbeat Write Tag is written by the BMS; the guide does not state the timeout.
Network setup
- BACnet Device Instance = the controller's Modbus Node-ID + Node_Offset (default 50,000), so Node-ID 1 = 50001. Change Node_Offset in the ProtoNode web configurator to pick other instances.
- The ProtoNode RER does BACnet MS/TP or BACnet IP, selected on its S bank DIP switches.
- BACnet MS/TP: one MAC address (1-127) for the whole ProtoNode on the A bank DIP switches; baud on B0-B3 (38400 factory default).
- BACnet IP: default ProtoNode address 192.168.1.24; change it in the web configurator.
Cleaver-Brooks HSC Boiler Interface Module (ProtoNode) 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 | Boiler Status | Modbus 30021 | Read | ||
| AImin | 2 | Alarm Word | Modbus 30022 | Read | ||
| AI | 3 | Hours Word 1 | Modbus 30023 | Read | ||
| AI | 4 | Hours Word 2 | Modbus 30024 | Read | ||
| AI | 5 | Cycles Word 1 | Modbus 30025 | Read | ||
| AI | 6 | Cycles Word 2 | Modbus 30026 | Read | ||
| AI | 7 | Bits | Modbus 30027 | Read | ||
| AI | 8 | Inlet Temp | Modbus 30028 | Read | ||
| AI | 9 | Fire Delay | Modbus 30029 | Read | ||
| AImin | 10 | Outlet Temp | Modbus 30030 | Read | ||
| AImin | 11 | Firing Rate | Modbus 30031 | Read | ||
| AI | 12 | Digital Inputs | Modbus 30032 | Read | ||
| AI | 13 | Digital Outputs | Modbus 30033 | Read | ||
| BI | 1 | LFH Active | Read | |||
| BI | 2 | Min Outlet Temp Met | Read | |||
| BI | 3 | Spare | Read | |||
| BImin | 4 | Alarm Output | Read | |||
| BI | 5 | Spare | Read | |||
| BImin | 6 | Boiler Run Output | Read | |||
| BI | 7 | Pump Run Output | Read | |||
| BI | 8 | Damper Output | Read | |||
| BI | 9 | Valve Output | Read | |||
| BI | 10 | Alarm Input | Read | |||
| BI | 11 | Boiler Ready Input | Read | |||
| BI | 12 | Pump Prove Input | Read | |||
| BI | 13 | Boiler Prove Input | Read | |||
| BI | 14 | Damper Prove Input | Read | |||
| BI | 15 | Spare | Read | |||
| BI | 16 | Spare | Read | |||
| AV | 1 | DHW1 Setpoint | Modbus 40301-02 | Write | ||
| AV | 2 | DHW2 Setpoint | Modbus 40303-04 | Write | ||
| AV | 3 | AQ304 | Modbus 40305-06 | Write | ||
| AV | 4 | AQ306 | Modbus 40307-08 | Write | ||
| AVmin | 5 | Remote Setpoint Write | Modbus 40309-10 | Write | ||
| AV | 6 | DHW1 Enable | Modbus 40310 | Write | ||
| AV | 7 | DHW2 Enable | Modbus 40311 | Write | ||
| AVmin | 8 | Remote Enable | Modbus 40312 | Write | ||
| AVmin | 9 | Heartbeat Write Tag | Modbus 40316 | Write | ||
| AI | 14 | Hours | Modbus 30034-35 | Read | ||
| AI | 15 | Cycles | Modbus 30036-37 | Read |
No points match these filters.
Object ID lookup: Cleaver-Brooks HSC Boiler Interface Module point IDs by name
AI1Boiler StatusAI2Alarm WordAI3Hours Word 1AI4Hours Word 2AI5Cycles Word 1AI6Cycles Word 2AI7BitsAI8Inlet TempAI9Fire DelayAI10Outlet TempAI11Firing RateAI12Digital InputsAI13Digital OutputsBI1LFH ActiveBI2Min Outlet Temp MetBI3SpareBI4Alarm OutputBI5SpareBI6Boiler Run OutputBI7Pump Run OutputBI8Damper OutputBI9Valve OutputBI10Alarm InputBI11Boiler Ready InputBI12Pump Prove InputBI13Boiler Prove InputBI14Damper Prove InputBI15SpareBI16SpareAV1DHW1 SetpointAV2DHW2 SetpointAV3AQ304AV4AQ306AV5Remote Setpoint WriteAV6DHW1 EnableAV7DHW2 EnableAV8Remote EnableAV9Heartbeat Write TagAI14HoursAI15Cycles
Integration notes
- Each Cleaver-Brooks controller on the ProtoNode is its own BACnet device; the object instances below are the same on every device.
- The guide prints no write-point stars for this profile; the AV/BV objects map to Metasys N2 outputs and Modbus output registers or coils, so they are taken as writable. Access is inferred from object type.
- The guide gives no engineering units or state texts; units appear only where the object name carries them (DEG F / DEG C).
- Where a description is filled in, it gives the register from the guide's Modbus column.
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 HSC Boiler Interface Module (ProtoNode) 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 Cleaver-Brooks HSC Boiler Interface Module (ProtoNode)
How many BACnet points does the Cleaver-Brooks HSC Boiler Interface Module (ProtoNode) have?
This list has 40 BACnet objects: 15 analog inputs, 9 analog values, 16 binary inputs. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Cleaver-Brooks HSC Boiler Interface Module (ProtoNode) BACnet points are writable?
9 of the 40 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 Cleaver-Brooks HSC Boiler Interface Module (ProtoNode) BACnet documentation?
Cleaver-Brooks does not publish it on its own website. This list comes from Cloud Enabled ProtoNode Gateway Startup Guide (RER/LER) for interfacing Cleaver-Brooks products (750-426), revision 03/2018, a copy hosted by watmfg.com at https://watmfg.com/watmfg23082016/wp-content/uploads/2016/09/750-426-ProtoNode-Cloud.pdf. Ask Cleaver-Brooks or its representative for the current revision.
What are the minimum BACnet points to integrate the Cleaver-Brooks HSC Boiler Interface Module (ProtoNode)?
Start with AV 8 Remote Enable (Remote enable); AV 5 Remote Setpoint Write (Remote setpoint); AV 9 Heartbeat Write Tag (Heartbeat written by the BMS); AI 1 Boiler Status (Boiler status); BI 6 Boiler Run Output (Boiler run output); AI 10 Outlet Temp (Outlet temperature); AI 11 Firing Rate (Firing rate); BI 4 Alarm Output (Alarm output); AI 2 Alarm Word (Alarm word).
Does the Cleaver-Brooks HSC Boiler Interface Module (ProtoNode) need a BACnet heartbeat or have a communication timeout?
AV 9 Heartbeat Write Tag is written by the BMS; the guide does not state the timeout.
How do I check these points on the real HSC Boiler Interface Module (ProtoNode)?
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 Cleaver-Brooks BACnet points lists
- Boiler feedwater deaerator and surge tank controller via BACnet gateway
Cleaver-Brooks ADAC 1000 deaerator / surge tank control (ProtoNode, EtherNet/IP)
Cleaver-Brooks deaerator and surge tank packages with the ADAC 1000 PLC control, read through a ProtoNode RER gateway over EtherNet/IP.
Also known as: ADAC 1000, ADAC_1000, ProtoNode RER, 750-426 - Boiler feedwater deaerator and surge tank controller via BACnet gateway
Cleaver-Brooks ADAC deaerator / surge tank control (ProtoNode)
Cleaver-Brooks deaerator and surge tank packages with the ADAC control, read through a ProtoNode RER gateway.
Also known as: ADAC, CB deaerator control, ProtoNode RER, 750-426 - Boiler flame safeguard via BACnet gateway
Cleaver-Brooks CB120 flame safeguard (ProtoNode)
Cleaver-Brooks boilers with the CB120 flame safeguard, read through a ProtoNode RER gateway.
Also known as: CB120, CB 120, ProtoNode RER, 750-426 - Boiler flame safeguard via BACnet gateway
Cleaver-Brooks CB780 flame safeguard with expanded annunciator (ProtoNode)
Cleaver-Brooks boilers with the CB780 burner management control and expanded annunciator, read through a ProtoNode RER gateway.
Also known as: CB780, CB 780, CB780E, ProtoNode RER, 750-426 - Hot water boiler control via BACnet gateway
Cleaver-Brooks Falcon Hydronic boiler control (ProtoNode)
Cleaver-Brooks hot water boilers with the Falcon hydronic burner control, read through a ProtoNode RER gateway.
Also known as: Falcon Hydronic, ClearFire Falcon, CB Falcon, ProtoNode RER, 750-426 - Steam boiler control via BACnet gateway
Cleaver-Brooks Falcon Steam boiler control (ProtoNode)
Cleaver-Brooks steam boilers with the Falcon steam burner control, read through a ProtoNode RER gateway.
Also known as: Falcon Steam, CB Falcon steam, ProtoNode RER, 750-426 - Boiler flame safeguard and fuel-air ratio control via BACnet gateway
Cleaver-Brooks FARC with CB780 / CB783 burner control (ProtoNode)
Cleaver-Brooks boilers with a CB780/CB783 burner control and FARC fuel-air ratio control, read through a ProtoNode RER gateway.
Also known as: FARC, CB 780/783, CB783, ProtoNode RER, 750-426 - Steam or hot water boiler control via BACnet gateway
Cleaver-Brooks Hawk 1000 boiler control (ProtoNode)
Cleaver-Brooks boilers with the Hawk 1000 PLC boiler control, read through a ProtoNode RER gateway.
Also known as: Hawk 1000, CB Hawk 1000, ProtoNode RER, 750-426 - Steam or hot water boiler control via BACnet gateway
Cleaver-Brooks Hawk 2000 boiler control (ProtoNode)
Cleaver-Brooks boilers with the Hawk 2000 control, read through a ProtoNode RER gateway.
Also known as: Hawk 2000, CB Hawk 2000, ProtoNode RER, 750-426 - Steam or hot water boiler control via BACnet gateway
Cleaver-Brooks Hawk 4000 boiler control (ProtoNode)
Cleaver-Brooks boilers with the Hawk 4000 PLC boiler control, read through a ProtoNode RER gateway.
Also known as: Hawk 4000, CB Hawk 4000, ProtoNode RER, 750-426 - Steam or hot water boiler control via BACnet gateway
Cleaver-Brooks Hawk 4000 V2 boiler control (ProtoNode)
Cleaver-Brooks boilers with the HAWK 4000 V2 PLC boiler control, read through a ProtoNode RER gateway.
Also known as: HAWK 4000 V2, CB HAWK 4000 V2, HAWK_4000_V2, ProtoNode RER, 750-426 - Steam or hot water boiler control via BACnet gateway
Cleaver-Brooks Hawk 4500 boiler control (ProtoNode, EtherNet/IP)
Cleaver-Brooks boilers with the Hawk 4500 PLC boiler control, read through a ProtoNode RER gateway over EtherNet/IP.
Also known as: Hawk 4500, CB Hawk 4500, ProtoNode RER, 750-426 - Steam boiler control via BACnet gateway
Cleaver-Brooks Hawk 5000 boiler control (ProtoNode)
Cleaver-Brooks steam boilers with the Hawk 5000 control, read through a ProtoNode RER gateway.
Also known as: Hawk 5000, CB Hawk 5000, ProtoNode RER, 750-426 - Steam or hot water boiler control via BACnet gateway
Cleaver-Brooks Hawk ICS boiler control (ProtoNode)
Cleaver-Brooks boilers with the Hawk ICS control, read through a ProtoNode RER gateway.
Also known as: Hawk ICS, CB ICS, ProtoNode RER, 750-426 - Boiler lead/lag master panel via BACnet gateway
Cleaver-Brooks Hawk Master Panel lead/lag (ProtoNode)
Cleaver-Brooks Hawk Master Panels sequencing up to eight Hawk boilers (A-H), read through a ProtoNode RER gateway.
Also known as: Hawk Master Panel, Hawk Master, CB Master Panel, ProtoNode RER, 750-426 - Multi-boiler sequencer (hot water boiler plant) via BACnet gateway
Cleaver-Brooks HSC Hydronic System Controller (ProtoNode)
Cleaver-Brooks HSC panels sequencing up to 10 condensing and 10 non-condensing boilers, read through a ProtoNode RER gateway.
Also known as: HSC, Hydronic System Controller, CB HSC, ProtoNode RER, 750-426 - Pump interface module (boiler plant pumps) via BACnet gateway
Cleaver-Brooks HSC Pump Interface Module (ProtoNode)
Cleaver-Brooks HSC pump interface modules (up to four system pumps), read through a ProtoNode RER gateway.
Also known as: Pump Interface Module, HSC Pump Interface, ProtoNode RER, 750-426 - Boiler water level controller via BACnet gateway
Cleaver-Brooks LCS Level Control System (ProtoNode)
Cleaver-Brooks LCS water level controllers (one or two tanks), read through a ProtoNode RER gateway.
Also known as: LCS, Level Control System, ProtoNode RER, 750-426 - Boiler feed pump controller via BACnet gateway
Cleaver-Brooks PCS Pump Control System (ProtoNode)
Cleaver-Brooks PCS pump controllers (up to four pumps on header pressure or tank level), read through a ProtoNode RER gateway.
Also known as: PCS, Pump Control System, ProtoNode RER, 750-426 - Electric power meter via BACnet gateway
Cleaver-Brooks Shark 100 power meter profile (ProtoNode)
Shark 100 power meters supplied on Cleaver-Brooks equipment, read through a ProtoNode RER gateway.
Also known as: Shark 100, Electro Industries Shark 100, ProtoNode RER, 750-426 - Electric power meter via BACnet gateway
Cleaver-Brooks Shark 200 power meter profile (ProtoNode)
Shark 200 power meters supplied on Cleaver-Brooks equipment, read through a ProtoNode RER gateway.
Also known as: Shark 200, Electro Industries Shark 200, ProtoNode RER, 750-426 - Process loop controller via BACnet gateway
Cleaver-Brooks UDC 2500 loop controller profile (ProtoNode)
Honeywell UDC 2500 loop controllers supplied on Cleaver-Brooks equipment, read through a ProtoNode RER gateway.
Also known as: UDC 2500, UDC2500, Honeywell UDC 2500, ProtoNode RER, 750-426
Source: Cloud Enabled ProtoNode Gateway Startup Guide (RER/LER) for interfacing Cleaver-Brooks products · 750-426 · rev. 03/2018. Object names, instances and units are reproduced as published; descriptions are our own.