Easy BACnet- Home
- BACnet points lists
- Fulton
- Boiler with Siemens LMV3 (N54 ProtoNode)
Boiler burner control gateway · BACnet points list
Fulton Boiler with Siemens LMV3 (N54 ProtoNode) BACnet points list
Updated 28 October 2026
Fulton's N54 ProtoNode gateway reads each boiler's Siemens LMV3 burner control over Modbus and publishes a block of 28 objects per boiler. Most points are burner phase, actuator positions, counters, error codes and switch states; three writable objects let the BMS take the boiler into remote, pick Auto/On/Off and send a firing rate.
This page lists 28 BACnet objects for the Fulton Boiler with Siemens LMV3 (N54 ProtoNode) — 3 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Fulton’s own free documentation, linked below.
- Manufacturer
- Fulton
- Model
- Boiler with Siemens LMV3 (N54 ProtoNode)
- Equipment
- Boiler burner control gateway
- Equipment type
- Boilers & water heaters
- BACnet objects
- 28 (3 writable)
- Transport
- —
- Firmware
- Not stated
- Also known as
- LMV3, LMV 3, Siemens LMV3, N54 ProtoNode, Fulton ProtoNode
BMS integration notes: Fulton Boiler with Siemens LMV3 (N54 ProtoNode)
Put the boiler in remote with the Modbus Mode BV, then run it with Operating Mode In Remote (Auto/On/Off) and the Remote Firing Rate. Monitor burner phase, firing rate, the alarm output and the LMV error code. Every boiler on the ProtoNode has its own block of object IDs based on its Modbus address.
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 1027 | Boiler 1 Operating Mode In Remote | Run command in remote: 0 = Auto, 1 = On, 2 = Off | Write |
| BV 1026 | Boiler 1 Modbus Mode | Set 1 = Remote so network commands take effect | Write |
| AV 1028 | Boiler 1 Remote Firing Rate | Firing rate command, %; 20 % minimum to enable | Write |
| BI 1014 | Boiler 1 Controller On/Off Status | Burner controller on/off state | Read |
| AI 1001 | Boiler 1 Burner Control Phase | Burner sequence phase; 60 = operation, 0 = lockout | Read |
| AI 1005 | Boiler 1 Firing Rate | Actual firing rate, % | Read |
| BI 1020 | Boiler 1 Alarm Status | Boiler alarm active | Read |
| AI 1010 | Boiler 1 Current Error: Error Code | Active LMV error code | Read |
Enable & remote start
Write BV (X)026 Modbus Mode = 1 (Remote). In remote, AV (X)027 Operating Mode In Remote selects 0 = Auto, 1 = On or 2 = Off, and AV (X)028 Remote Firing Rate sets the rate; the boiler is only enabled at 20 % or more.
Network setup
- Object ID = boiler Modbus address followed by the three-digit point number: (X)001-(X)028. Boiler 1 = 1001-1028, boiler 2 = 2001-2028.
- The sheet gives no device instance, MAC address or baud rate; those are set on the ProtoNode gateway.
Watch out for
- A remote firing rate below 20 % does not enable the boiler.
- Error code points need the Siemens LMV manual to decode.
Fulton Boiler with Siemens LMV3 (N54 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.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AImin | 1001 | Boiler 1 Burner Control Phase | LMV3 burner sequence phase code | Read | 0=Lockout Phase, 2=Safety Phase, 10=Home Run, 12=Standby, 22=Fan Motor On, 30=Pre-Purge, 36=Driving to Ignition, 38=Ignition, 40=Fuel Valve On, 44=Flame Stabilization, 50=Safety Time 2, 52=Flame Stabilization 2, 60=Operation, 70=Post- Purge | |
| AI | 1002 | Boiler 1 Position of Fuel Actuator | Fuel actuator position, -50 to 150 | Read | ||
| AI | 1003 | Boiler 1 Position of Air Actuator | Air actuator position, -50 to 150 | Read | ||
| AI | 1004 | Boiler 1 Current Type of Fuel | Fuel in use | Read | 0=Fuel 0 (Gas), 1=Fuel 1 (Oil) | |
| AImin | 1005 | Boiler 1 Firing Rate | Burner firing rate, 0-100 % | % | Read | |
| AI | 1006 | Boiler 1 Flame Signal | Flame signal strength, 0-100 % | % | Read | |
| AI | 1007 | Boiler 1 Startup Counter Total | Total burner start count | Read | ||
| AI | 1008 | Boiler 1 Hours Run Fuel 0 | Run hours on fuel 0 (gas) | Read | ||
| AI | 1009 | Boiler 1 Hours Run Fuel 1 | Run hours on fuel 1 (oil) | Read | ||
| AImin | 1010 | Boiler 1 Current Error: Error Code | Active LMV error code (see LMV manual) | Read | ||
| AI | 1011 | Boiler 1 Current Error: Error Diagnostic | Diagnostic code for the active error | Read | ||
| AI | 1012 | Boiler 1 Current Error: Error Class | Class of the active error | Read | ||
| AI | 1013 | Boiler 1 Current Error: Error Phase | Burner phase when the error occurred | Read | ||
| BImin | 1014 | Boiler 1 Controller On/Off Status | Burner controller on/off state | Read | 0=Off, 1=On | |
| BI | 1015 | Boiler 1 Pressure Switch Valve Proving | Valve proving pressure switch input | Read | 0=Off, 1=On | |
| BI | 1016 | Boiler 1 Safety Loop Status | Safety loop input | Read | 0=Off, 1=On | |
| BI | 1017 | Boiler 1 Pressure Switch Min Status | Minimum pressure switch input | Read | 0=Off, 1=On | |
| BI | 1018 | Boiler 1 Pressure Switch Mas Status | Maximum pressure switch input | Read | 0=Off, 1=On | |
| BI | 1019 | Boiler 1 Air Pressure Switch Status | Combustion air pressure switch input | Read | 0=Off, 1=On | |
| BImin | 1020 | Boiler 1 Alarm Status | Boiler alarm output | Read | 0=Off, 1=On | |
| BI | 1021 | Boiler 1 Ignition Status | Ignition output | Read | 0=Off, 1=On | |
| BI | 1022 | Boiler 1 Fan Status | Combustion fan output | Read | 0=Off, 1=On | |
| BI | 1023 | Boiler 1 Fuel Valve V1 Status | Fuel valve V1 output | Read | 0=Off, 1=On | |
| BI | 1024 | Boiler 1 Fuel Valve V2 Status | Fuel valve V2 output | Read | 0=Off, 1=On | |
| BI | 1025 | Boiler 1 Fuel Valve V3 Status | Fuel valve V3 output | Read | 0=Off, 1=On | |
| BVmin | 1026 | Boiler 1 Modbus Mode | Local or remote (network) control | Write | 0=Local, 1=Remote | |
| AVmin | 1027 | Boiler 1 Operating Mode In Remote | Run command used while in remote | Write | 0=Auto, 1=On, 2=Off | |
| AVmin | 1028 | Boiler 1 Remote Firing Rate | Firing rate command, 0-100 %; 20 % minimum enables | % | Write |
No points match these filters.
Integration notes
- Object IDs are written (X)001-(X)028, where (X) is the boiler's Modbus address on the ProtoNode. This list shows boiler address 1 (1001-1028); boiler 2 uses 2001-2028, boiler 10 uses 10001-10028.
- The sheet does not say which BACnet transport the gateway is set to; ProtoNode gateways are normally configured for BACnet IP or BACnet MS/TP.
- Remote firing rate needs at least 20 % for the boiler to be enabled.
- Error code, diagnostic, class and phase values are decoded with the Siemens LMV manual.
- Burner phase and fuel type are analog inputs carrying a code; the code meanings are given in the states.
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 Boiler with Siemens LMV3 (N54 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 Fulton Boiler with Siemens LMV3 (N54 ProtoNode)
How many BACnet points does the Fulton Boiler with Siemens LMV3 (N54 ProtoNode) have?
This list has 28 BACnet objects: 13 analog inputs, 2 analog values, 12 binary inputs, 1 binary value. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Fulton Boiler with Siemens LMV3 (N54 ProtoNode) BACnet points are writable?
3 of the 28 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 Fulton Boiler with Siemens LMV3 (N54 ProtoNode) BACnet documentation?
The source is LMV 3 Fulton N54 ProtoNode BACnet Network Addressing, revision 2020-04-08 (file date), published free by Fulton at https://fulton.com/app/uploads/2021/02/N54-LMV3-BACnet-list_2020-0408.pdf.
What are the minimum BACnet points to integrate the Fulton Boiler with Siemens LMV3 (N54 ProtoNode)?
Start with AV 1027 Boiler 1 Operating Mode In Remote (Run command in remote: 0 = Auto, 1 = On, 2 = Off); BV 1026 Boiler 1 Modbus Mode (Set 1 = Remote so network commands take effect); AV 1028 Boiler 1 Remote Firing Rate (Firing rate command, %; 20 % minimum to enable); BI 1014 Boiler 1 Controller On/Off Status (Burner controller on/off state); AI 1001 Boiler 1 Burner Control Phase (Burner sequence phase; 60 = operation, 0 = lockout); AI 1005 Boiler 1 Firing Rate (Actual firing rate, %); BI 1020 Boiler 1 Alarm Status (Boiler alarm active); AI 1010 Boiler 1 Current Error: Error Code (Active LMV error code).
How do I enable BMS control of the Fulton Boiler with Siemens LMV3 (N54 ProtoNode)?
Write BV (X)026 Modbus Mode = 1 (Remote). In remote, AV (X)027 Operating Mode In Remote selects 0 = Auto, 1 = On or 2 = Off, and AV (X)028 Remote Firing Rate sets the rate; the boiler is only enabled at 20 % or more.
How do I check these points on the real Boiler with Siemens LMV3 (N54 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 Fulton BACnet points lists
- Boiler plant sequencer
Fulton Hydronic ModSync SE v6.6.1.X (N54 ProtoNode)
Fulton ModSync SE hydronic boiler sequencer (software 6.6.1.X) managing up to 8 boilers, read through the N54 ProtoNode.
Also known as: ModSync, ModSync SE, Fulton ModSync, ModSync sequencer, N54 ProtoNode - Boiler controller gateway
Fulton PURE Control - Endura+ EDR+ 2500-6000 (N54 ProtoNode)
Fulton hydronic boilers run by the PURE control (the file name points to Endura+ EDR+ 2500-6000 MBH sizes), read through the N54 ProtoNode.
Also known as: PURE, Fulton PURE, Endura+, EDR+, Endura Plus, Hydronic PURE, N54 ProtoNode
Source: LMV 3 Fulton N54 ProtoNode BACnet Network Addressing · rev. 2020-04-08 (file date). Object names, instances and units are reproduced as published; descriptions are our own.