Easy BACnet- Home
- BACnet points lists
- Fulton
- Hydronic SOLA Master (lead/lag) (N54 ProtoNode)
Boiler plant controller gateway · BACnet points list
Fulton Hydronic SOLA Master (lead/lag) (N54 ProtoNode) BACnet points list
Updated 6 November 2026
Fulton's N54 ProtoNode publishes 65 objects for the SOLA lead/lag master boiler. The first 41 mirror the per-boiler SOLA list for the master itself; the rest give status, stage and firing rate for slaves 1-8. The BMS can enable central heat, DHW and lead/lag and send their setpoints.
This page lists 65 BACnet objects for the Fulton Hydronic SOLA Master (lead/lag) (N54 ProtoNode) — 8 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
- Hydronic SOLA Master (lead/lag) (N54 ProtoNode)
- Equipment
- Boiler plant controller gateway
- Equipment type
- Boilers & water heaters
- BACnet objects
- 65 (8 writable)
- Transport
- —
- Firmware
- Not stated
- Also known as
- SOLA Master, Fulton SOLA lead lag, N54 ProtoNode
Reference only, provided as-is: verify against Fulton’s current documentation and the live device before use. Not official Fulton information. Terms of use.
BMS integration notes: Fulton Hydronic SOLA Master (lead/lag) (N54 ProtoNode)
On the lead/lag master, enable lead/lag with LL Enable and write the LL setpoint (or use CH Enable and the CH setpoint for a single boiler). Read the master burner status, outlet temperature, firing rate and alarms, plus the status, stage and firing rate of each of up to 8 slaves.
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 |
|---|---|---|---|
| BV 36 | Master Boiler LL Enable | Lead/lag enable (1 = enable) | Write |
| AV 37 | Master Boiler LL Setpoint Input | Lead/lag setpoint, °F | Write |
| BV 32 | Master Boiler CH Enable | Central heat enable (1 = enable) | Write |
| AV 33 | Master Boiler CH Setpoint Input | Central heat setpoint, °F | Write |
| AI 39 | Master Boiler Burner Status | Master burner state code; see states | Read |
| AI 1 | Master Boiler Outlet Temperature | Master outlet water temperature, °F | Read |
| AI 13 | Master Boiler Firing Rate | Master firing rate, % | Read |
| AI 42 | Slave 1 Status | Slave 1 state (repeat per slave) | Read |
| BI 16 | Master Boiler Alarm Status | Master alarm active (1 = active) | Read |
| AI 17 | Master Boiler Lockout Code | Lockout code; 0 = no lockout | Read |
Enable & remote start
BV 36 LL Enable and AV 37 LL Setpoint Input run the lead/lag group from the master. BV 32/AV 33 (central heat) and BV 34/AV 35 (DHW) enable and set the master itself; AV 40 Remote Operating Mode and AV 41 Remote Firing Rate force its burner.
Network setup
- Object IDs 1-65 are fixed and do not depend on the boiler address.
- Slave blocks: slave 1 = 42-44, each further slave adds 3 (slave 8 = 63-65).
- The sheet gives no device instance, MAC address or baud rate; those are set on the ProtoNode gateway.
Watch out for
- Lockout codes (1-4096) are decoded with the SOLA control manual.
- Slave Stage reads 0 when the slave is not staged; the sheet lists no other values.
Fulton Hydronic SOLA Master (lead/lag) (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 | 1 | Master Boiler Outlet Temperature | Range -40 to 266 | °F | Read | |
| AI | 2 | Master Boiler Inlet Temperature | Range -40 to 266 | °F | Read | |
| AI | 3 | Master Boiler DHW Temperature | Range -40 to 266 | °F | Read | |
| AI | 4 | Master Boiler Outdoor Air Temperature | Range -40 to 266 | °F | Read | |
| AI | 5 | Master Boiler Header Temperature | Range -40 to 266 | °F | Read | |
| AI | 6 | Master Boiler Stack Temperature | Range -40 to 266 | °F | Read | |
| AI | 7 | Master Boiler Active CH Setpoint | Range -40 to 266 | °F | Read | |
| AI | 8 | Master Boiler Active DHW Setpoint | Range -40 to 266 | °F | Read | |
| AI | 9 | Master Boiler Active LL Setpoint | Range -40 to 266 | °F | Read | |
| AI | 10 | Master Boiler CH Operating Point | Range -40 to 266 | °F | Read | |
| AI | 11 | Master Boiler CH DHW Operating Point | Range -40 to 266 | °F | Read | |
| AI | 12 | Master Boiler LL Operating Point | Range -40 to 266 | °F | Read | |
| AImin | 13 | Master Boiler Firing Rate | Range 0 to 100 | % | Read | |
| AI | 14 | Master Boiler Fan Speed | Range based on user settings. | Read | ||
| AI | 15 | Master Boiler Flame Signal | Read | |||
| BImin | 16 | Master Boiler Alarm Status | Read | 0=Inactive, 1=Active | ||
| AImin | 17 | Master Boiler Lockout Code | Range 1 to 4096 (see manual) | Read | 0=No Lockout | |
| AI | 18 | Master Boiler Alarm Reason | Read | 0=None, 1=Lockout (See Manal), 2=Alert (See Manual), 3=Other | ||
| BI | 19 | Master Boiler Low Water Input Status | Read | 0=Circuit Open, 1=Circuit Made | ||
| BI | 20 | Master Boiler Air Switch Input Status | Read | 0=Circuit Open, 1=Circuit Made | ||
| BI | 21 | Master Boiler Low Gas Pressure Input Status | Read | 0=Circuit Open, 1=Circuit Made | ||
| BI | 22 | Master Boiler High Gas Pressure Input Status | Read | 0=Circuit Open, 1=Circuit Made | ||
| BI | 23 | Master Boiler High Back Pressure Input Status | Read | 0=Circuit Open, 1=Circuit Made | ||
| BI | 24 | Master Boiler High Condensate Input Status | Read | 0=Circuit Open, 1=Circuit Made | ||
| BI | 25 | Master Boiler High Temp Input Status | Read | 0=Circuit Open, 1=Circuit Made | ||
| BI | 26 | Master Boiler Auxiliary Annunciator Input Status | Read | 0=Circuit Open, 1=Circuit Made | ||
| BI | 27 | Master Boiler Pump A Status | Read | 0=Inactive, 1=Active | ||
| BI | 28 | Master Boiler Pump B Status | Read | 0=Inactive, 1=Active | ||
| BI | 29 | Master Boiler Pump C Status | Read | 0=Inactive, 1=Active | ||
| AI | 30 | Master Boiler Burner Cycle Count | Range 0 - 999,999 | Read | ||
| AI | 31 | Master Boiler Burner Run Hours | Range 0 - 999,999 | Read | ||
| BVmin | 32 | Master Boiler CH Enable | Write | 0=Disable Central Heat, 1=Enable Central Heat | ||
| AVmin | 33 | Master Boiler CH Setpoint Input | Range -40 to 266 | °F | Write | |
| BV | 34 | Master Boiler DHW Enable | Write | 0=Disable DHW, 1=Enable DHW | ||
| AV | 35 | Master Boiler DHW Setpoint Input | Range -40 to 266 | °F | Write | |
| BVmin | 36 | Master Boiler LL Enable | Write | 0=Disable Lead Lag, 1=Enable Lead Lag | ||
| AVmin | 37 | Master Boiler LL Setpoint Input | Range -40 to 266 | °F | Write | |
| AI | 38 | Master Boiler Burner Demand Source | Read | 0=Unknown, 1=No Source Demand, 2=CH, 3=DHW, 4=Lead Lag Slave, 5=Lead Lag Master, 6=CH Frost Protection, 7=DHW Frost Protection, 8=No demand due to burner switch turned off, 9=DHW Storage, 11=Warm Weather Shutdown, 12=Hot Standby | ||
| AImin | 39 | Master Boiler Burner Status | Read | 0=Disabled, 1=Locked out, 2-3=Reserved, 4=Anti Short Cycle, 5=Unconfigured Safety Data, 6-33=Reserved, 34=Standby Hold, 35=Standby Delay, 36-47=Reserved, 48=Normal Standby, 49=Preparing, 50=Ignition, 51=Firing, 52=Postpurge | ||
| AV | 40 | Master Boiler Remote Operating Mode | Write | 0=Auto, 1=Remote Off, 2=Remote On | ||
| AV | 41 | Master Boiler Remote Firing Rate | Range 0 to 100 | % | Write | |
| AImin | 42 | Slave 1 Status | Read | 0=Unknown, 1=Available, 2=Add Stage, 3=Suspend Stage, 4=Firing, 5=On Leave, 6=Disabled, 7=Recovering | ||
| AI | 43 | Slave 1 Stage | Read | 0=Not Staged | ||
| AI | 44 | Slave 1 Firing Rate | Range 0 to 100 | % | Read | |
| AI | 45 | Slave 2 Status | Read | 0=Unknown, 1=Available, 2=Add Stage, 3=Suspend Stage, 4=Firing, 5=On Leave, 6=Disabled, 7=Recovering | ||
| AI | 46 | Slave 2 Stage | Read | 0=Not Staged | ||
| AI | 47 | Slave 2 Firing Rate | Range 0 to 100 | % | Read | |
| AI | 48 | Slave 3 Status | Read | 0=Unknown, 1=Available, 2=Add Stage, 3=Suspend Stage, 4=Firing, 5=On Leave, 6=Disabled, 7=Recovering | ||
| AI | 49 | Slave 3 Stage | Read | 0=Not Staged | ||
| AI | 50 | Slave 3 Firing Rate | Range 0 to 100 | % | Read | |
| AI | 51 | Slave 4 Status | Read | 0=Unknown, 1=Available, 2=Add Stage, 3=Suspend Stage, 4=Firing, 5=On Leave, 6=Disabled, 7=Recovering | ||
| AI | 52 | Slave 4 Stage | Read | 0=Not Staged | ||
| AI | 53 | Slave 4 Firing Rate | Range 0 to 100 | % | Read | |
| AI | 54 | Slave 5 Status | Read | 0=Unknown, 1=Available, 2=Add Stage, 3=Suspend Stage, 4=Firing, 5=On Leave, 6=Disabled, 7=Recovering | ||
| AI | 55 | Slave 5 Stage | Read | 0=Not Staged | ||
| AI | 56 | Slave 5 Firing Rate | Range 0 to 100 | % | Read | |
| AI | 57 | Slave 6 Status | Read | 0=Unknown, 1=Available, 2=Add Stage, 3=Suspend Stage, 4=Firing, 5=On Leave, 6=Disabled, 7=Recovering | ||
| AI | 58 | Slave 6 Stage | Read | 0=Not Staged | ||
| AI | 59 | Slave 6 Firing Rate | Range 0 to 100 | % | Read | |
| AI | 60 | Slave 7 Status | Read | 0=Unknown, 1=Available, 2=Add Stage, 3=Suspend Stage, 4=Firing, 5=On Leaved, 6=Disabled, 7=Recovering | ||
| AI | 61 | Slave 7 Stage | Read | 0=Not Staged | ||
| AI | 62 | Slave 7 Firing Rate | Range 0 to 100 | % | Read | |
| AI | 63 | Slave 8 Status | Read | 0=Unknown, 1=Available, 2=Add Stage, 3=Suspend Stage, 4=Firing Rate, 5=On Leave, 6=Disabled, 7=Recovering | ||
| AI | 64 | Slave 8 Stage | Read | 0=Not Staged | ||
| AI | 65 | Slave 8 Firing Rate | Range 0 to 100 | % | Read |
No points match these filters.
Object ID lookup: Fulton Hydronic SOLA Master point IDs by name
AI1Master Boiler Outlet TemperatureAI2Master Boiler Inlet TemperatureAI3Master Boiler DHW TemperatureAI4Master Boiler Outdoor Air TemperatureAI5Master Boiler Header TemperatureAI6Master Boiler Stack TemperatureAI7Master Boiler Active CH SetpointAI8Master Boiler Active DHW SetpointAI9Master Boiler Active LL SetpointAI10Master Boiler CH Operating PointAI11Master Boiler CH DHW Operating PointAI12Master Boiler LL Operating PointAI13Master Boiler Firing RateAI14Master Boiler Fan SpeedAI15Master Boiler Flame SignalBI16Master Boiler Alarm StatusAI17Master Boiler Lockout CodeAI18Master Boiler Alarm ReasonBI19Master Boiler Low Water Input StatusBI20Master Boiler Air Switch Input StatusBI21Master Boiler Low Gas Pressure Input StatusBI22Master Boiler High Gas Pressure Input StatusBI23Master Boiler High Back Pressure Input StatusBI24Master Boiler High Condensate Input StatusBI25Master Boiler High Temp Input StatusBI26Master Boiler Auxiliary Annunciator Input StatusBI27Master Boiler Pump A StatusBI28Master Boiler Pump B StatusBI29Master Boiler Pump C StatusAI30Master Boiler Burner Cycle CountAI31Master Boiler Burner Run HoursBV32Master Boiler CH EnableAV33Master Boiler CH Setpoint InputBV34Master Boiler DHW EnableAV35Master Boiler DHW Setpoint InputBV36Master Boiler LL EnableAV37Master Boiler LL Setpoint InputAI38Master Boiler Burner Demand SourceAI39Master Boiler Burner StatusAV40Master Boiler Remote Operating ModeAV41Master Boiler Remote Firing RateAI42Slave 1 StatusAI43Slave 1 StageAI44Slave 1 Firing RateAI45Slave 2 StatusAI46Slave 2 StageAI47Slave 2 Firing RateAI48Slave 3 StatusAI49Slave 3 StageAI50Slave 3 Firing RateAI51Slave 4 StatusAI52Slave 4 StageAI53Slave 4 Firing RateAI54Slave 5 StatusAI55Slave 5 StageAI56Slave 5 Firing RateAI57Slave 6 StatusAI58Slave 6 StageAI59Slave 6 Firing RateAI60Slave 7 StatusAI61Slave 7 StageAI62Slave 7 Firing RateAI63Slave 8 StatusAI64Slave 8 StageAI65Slave 8 Firing Rate
Integration notes
- Object IDs 1-65 are fixed (no boiler address prefix).
- 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.
- Slave status, stage and firing rate repeat for slaves 1-8 in groups of three IDs.
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 Hydronic SOLA Master (lead/lag) (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 Hydronic SOLA Master (lead/lag) (N54 ProtoNode)
How many BACnet points does the Fulton Hydronic SOLA Master (lead/lag) (N54 ProtoNode) have?
This list has 65 BACnet objects: 45 analog inputs, 5 analog values, 12 binary inputs, 3 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Fulton Hydronic SOLA Master (lead/lag) (N54 ProtoNode) BACnet points are writable?
8 of the 65 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 Hydronic SOLA Master (lead/lag) (N54 ProtoNode) BACnet documentation?
The source is Hydronic SOLA Master - 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-sola-master-BACnet-list_2020-0408.pdf.
What are the minimum BACnet points to integrate the Fulton Hydronic SOLA Master (lead/lag) (N54 ProtoNode)?
Start with BV 36 Master Boiler LL Enable (Lead/lag enable (1 = enable)); AV 37 Master Boiler LL Setpoint Input (Lead/lag setpoint, °F); BV 32 Master Boiler CH Enable (Central heat enable (1 = enable)); AV 33 Master Boiler CH Setpoint Input (Central heat setpoint, °F); AI 39 Master Boiler Burner Status (Master burner state code; see states); AI 1 Master Boiler Outlet Temperature (Master outlet water temperature, °F); AI 13 Master Boiler Firing Rate (Master firing rate, %); AI 42 Slave 1 Status (Slave 1 state (repeat per slave)); BI 16 Master Boiler Alarm Status (Master alarm active (1 = active)); AI 17 Master Boiler Lockout Code (Lockout code; 0 = no lockout).
How do I enable BMS control of the Fulton Hydronic SOLA Master (lead/lag) (N54 ProtoNode)?
BV 36 LL Enable and AV 37 LL Setpoint Input run the lead/lag group from the master. BV 32/AV 33 (central heat) and BV 34/AV 35 (DHW) enable and set the master itself; AV 40 Remote Operating Mode and AV 41 Remote Firing Rate force its burner.
How do I check these points on the real Hydronic SOLA Master (lead/lag) (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 burner control gateway
Fulton Boiler with Siemens LMV3 (N54 ProtoNode)
Fulton boilers with a Siemens LMV3 burner management control, read through Fulton's N54 ProtoNode gateway.
Also known as: LMV3, LMV 3, Siemens LMV3, N54 ProtoNode, Fulton ProtoNode - Boiler burner control gateway
Fulton Boiler with Siemens LMV3 and Yokogawa UT32A (N54 ProtoNode)
Fulton hydronic boilers with a Siemens LMV3 burner control and a Yokogawa UT32A temperature controller, read through the N54 ProtoNode.
Also known as: LMV3, Siemens LMV3, Yokogawa UT32A, UT32A, N54 ProtoNode - 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 Hydronic SOLA Boiler (N54 ProtoNode)
Fulton hydronic boilers with the SOLA burner control, one block of objects per boiler on the N54 ProtoNode.
Also known as: SOLA, Fulton SOLA, Honeywell SOLA, N54 ProtoNode - Boiler controller gateway
Fulton PURE Control - Endura EDR 750-2000 Provider (N54 ProtoNode)
The Provider (lead) boiler of a Fulton Endura (EDR) 750-2000 hydronic lead/lag group with the PURE control, read through the N54 ProtoNode.
Also known as: Endura, EDR 750, EDR 2000, EDR 2MM, Fulton PURE Provider, N54 ProtoNode - Boiler controller gateway
Fulton PURE Control - Endura EDR 750-2000 Single (N54 ProtoNode)
Fulton Endura (EDR) 750-2000 hydronic boilers with the PURE control, one boiler per address block on the N54 ProtoNode.
Also known as: Endura, EDR 750, EDR 2000, EDR 2MM, Fulton PURE, N54 ProtoNode - Boiler controller gateway
Fulton PURE Control - Endura XE EXE 399-750 Provider (N54 ProtoNode)
The Provider (lead) boiler of a Fulton Endura XE (EXE) 399-750 hydronic lead/lag group with the PURE control, read through the N54 ProtoNode.
Also known as: Endura XE, EXE 399, EXE 750, Fulton PURE Provider, N54 ProtoNode - Boiler controller gateway
Fulton PURE Control - Endura XE EXE 399-750 Single (N54 ProtoNode)
Fulton Endura XE (EXE) 399-750 hydronic boilers with the PURE control, one boiler per address block on the N54 ProtoNode.
Also known as: Endura XE, EXE 399, EXE 750, Fulton PURE, N54 ProtoNode - Boiler controller gateway
Fulton PURE Control - Endura ZE Provider (N54 ProtoNode)
The Provider (lead) boiler of a Fulton Endura (EDR) ZE lead/lag group with the PURE control, read through the N54 ProtoNode.
Also known as: Endura ZE, EDR ZE, Fulton PURE Provider, N54 ProtoNode - Boiler controller gateway
Fulton PURE Control - Endura ZE Single (N54 ProtoNode)
Fulton Endura (EDR) ZE boilers with the PURE control, one boiler per address block on the N54 ProtoNode.
Also known as: Endura ZE, EDR ZE, Fulton PURE, 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 - Boiler controller gateway
Fulton PURE Control - Endura+ EDR+ 2500-6000 Provider (N54 ProtoNode)
The Provider (lead) boiler of a Fulton Endura+ (EDR+) 2500-6000 hydronic lead/lag group with the PURE control, read through the N54 ProtoNode.
Also known as: Endura+, EDR+, Endura Plus, EDR+ 2500, EDR+ 6000, Fulton PURE Provider, N54 ProtoNode - Steam boiler controller gateway
Fulton PURE Control - VSRT Steam Boiler Provider (N54 ProtoNode)
The Provider (lead) boiler of a Fulton VSRT steam boiler lead/lag group with the PURE control, read through the N54 ProtoNode.
Also known as: VSRT, Fulton VSRT, Steam PURE Provider, N54 ProtoNode - Steam boiler controller gateway
Fulton PURE Control - VSRT Steam Boiler Single (N54 ProtoNode)
Fulton VSRT steam boilers with the PURE control, one boiler per address block on the N54 ProtoNode.
Also known as: VSRT, Fulton VSRT, Steam PURE, Fulton PURE, N54 ProtoNode - Boiler burner control
Fulton Siemens LMV36 with BACnet Interface
Fulton boilers with a Siemens LMV36 burner control on a BACnet interface.
Also known as: LMV36, Siemens LMV36, LMV3, Fulton LMV36 - Steam boiler burner control
Fulton Siemens LMV5 Steam Boiler with BACnet Interface
Fulton steam boilers whose Siemens LMV5 burner management is given a BACnet interface (standard configurations).
Also known as: LMV5, Siemens LMV5, LMV52, Fulton LMV5 - Steam boiler plant sequencer
Fulton Steam ModSync SE v6.6.1.0 (ProtoNode)
Fulton ModSync SE steam boiler sequencer (version 6.6.1.0) managing up to 8 steam boilers, read through a Sierra Monitor ProtoNode.
Also known as: ModSync SE, ModSync, Fulton ModSync steam, ProtoNode
Source: Hydronic SOLA Master - 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.