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Pump variable frequency drive · BACnet points list
Bell & Gossett FC-102 Embedded BACnet (pump drive) BACnet points list
Updated 28 October 2026
Bell & Gossett pumps driven by the FC-102 HVAC drive can use the drive's embedded BACnet MS/TP over its RS-485 port. The embedded map covers drive I/O terminals, run/stop and reference commands, setpoints and bus feedback values, drive and motor readings, PID tuning, and bypass (ECB) status. It is shorter than the MCA 109 option map and does not include the individual warning and alarm bits.
This page lists 125 BACnet objects for the Bell & Gossett FC-102 Embedded BACnet (pump drive) — 62 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Bell & Gossett’s own free documentation, linked below.
- Manufacturer
- Bell & Gossett
- Model
- FC-102 Embedded BACnet (pump drive)
- Equipment
- Pump variable frequency drive
- Equipment type
- VFDs & pumps
- BACnet objects
- 125 (62 writable)
- Transport
- BACnet MS/TP
- Firmware
- 3.90 and above
- Also known as
- FC-102, FC102, VLT HVAC Drive FC 102
BMS integration notes: Bell & Gossett FC-102 Embedded BACnet (pump drive)
The embedded FC-102 list gives run/stop, reference select and fault reset commands, writable setpoints and bus feedback values, and read-only drive data. A typical integration writes BV 1 and a setpoint, then reads run/fault status, speed, power and fault codes.
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 1 | RUN/STOP Command | Start/stop the drive from the BMS | Write |
| AV 1 | Input Reference 1 | Speed reference from the BMS (open-loop control) | Write |
| AV 30 | Setpoint 1 | Process setpoint 1 (when the drive runs its own PID) | Write |
| BV 3 | Fault Reset Command | Reset a tripped drive | Write |
| BV 4 | RUN/STOP Monitor | Running status | Read |
| BV 32 | Bus Control | Drive is under bus control | Read |
| AV 3 | Output Speed | Actual drive output speed | Read |
| AV 6 | Power | Drive output power | Read |
| BV 5 | OK/FAULT Monitor | Any active drive fault | Read |
| AV 51 | Fault Code | Active fault code number | Read |
Enable & remote start
BV 1 RUN/STOP Command starts and stops the drive and BV 2 selects reference 1 or 2; BV 32 shows whether the drive is under bus control. The point list does not explain how bus control is set up on the drive.
Sensors & values from the BMS
AV 31, AV 36 and AV 41 Bus Feedback 1-3 and AV 1/AV 2 Input Reference are writable; the point list does not describe how the drive uses them.
Network setup
- The point list applies to drive firmware 3.90 and above.
Watch out for
- Many rows in the list are Reserved or NA and are not included here.
- MO 0 is labelled MSO:0 but named multi_state_value in the list; check the object type on site.
Bell & Gossett FC-102 Embedded BACnet (pump drive) 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 | |||||
|---|---|---|---|---|---|---|
| AI | 0 | Analog Input 53 | Drive analog input terminal 53 value | Read | ||
| AI | 1 | Analog Input 54 | Drive analog input terminal 54 value | Read | ||
| AI | 2 | Analog Input X30/11 | Drive analog input terminal X30/11 value | Read | ||
| AI | 3 | Analog Input X30/12 | Drive analog input terminal X30/12 value | Read | ||
| AI | 4 | Analog Input X42/1 | Drive analog input terminal X42/1 value | Read | ||
| AI | 5 | Analog Input X42/3 | Drive analog input terminal X42/3 value | Read | ||
| AI | 6 | Analog Input X42/5 | Drive analog input terminal X42/5 value | Read | ||
| AO | 0 | Terminal 42 Output Bus Control | Analog or pulse output written over the bus | Write | ||
| AO | 1 | Pulse out #27 Bus Control | Analog or pulse output written over the bus | Write | ||
| AO | 2 | Pulse out #29 Bus Control | Analog or pulse output written over the bus | Write | ||
| AO | 3 | Analogue Out X30/8 [mA] | Analog or pulse output written over the bus | Write | ||
| AO | 4 | Analogue Out X42/7 [V] | Analog or pulse output written over the bus | Write | ||
| AO | 5 | Analogue Out X42/9 [V] | Analog or pulse output written over the bus | Write | ||
| AO | 6 | Analogue Out X42/11 [V] | Analog or pulse output written over the bus | Write | ||
| AVmin | 1 | Input Reference 1 | Speed / process reference from the bus | Write | ||
| AV | 2 | Input Reference 2 | Speed / process reference from the bus | Write | ||
| AVmin | 3 | Output Speed | Output speed | Read | ||
| AV | 4 | PID Feedback | PID feedback value | Read | ||
| AV | 5 | Motor Current | Motor current | Read | ||
| AVmin | 6 | Power | Drive output power | Read | ||
| AV | 15 | Motor Thermal | Motor thermal load | Read | ||
| AV | 21 | Operating Hours | Drive powered-on hours | Read | ||
| AV | 22 | Running Hours | Motor running hours | Read | ||
| AV | 23 | kWh Counter | Energy counter | Read | ||
| AV | 24 | Motor Voltage | Motor voltage | Read | ||
| AV | 25 | Frequency | Output frequency | Read | ||
| AV | 26 | Torque | Motor torque | Read | ||
| AV | 27 | DC Link Voltage | DC link voltage | Read | ||
| AV | 28 | Heatsink Temp. | Drive heatsink temperature | Read | ||
| AV | 29 | Inverter Thermal | Inverter thermal load | Read | ||
| AVmin | 30 | Setpoint 1 | Process setpoint 1 | Write | ||
| AV | 31 | Bus Feedback 1 | Feedback value 1 written by the BAS | Write | ||
| AV | 35 | Setpoint 2 | Process setpoint 2 | Write | ||
| AV | 36 | Bus Feedback 2 | Feedback value 2 written by the BAS | Write | ||
| AV | 40 | Setpoint 3 | Process setpoint 3 | Write | ||
| AV | 41 | Bus Feedback 3 | Feedback value 3 written by the BAS | Write | ||
| AV | 45 | Running Bypass | Running in bypass | Read | ||
| AV | 50 | Last Alarm | Most recent alarm code | Read | ||
| AVmin | 51 | Fault Code | Active fault code | Read | ||
| AV | 52 | PID Start Speed | Process PID: Start Speed | Write | ||
| AV | 53 | On Reference Bandwidth | On-reference bandwidth | Write | ||
| AV | 54 | PID Proportional Gain | Process PID: Proportional Gain | Write | ||
| AV | 55 | PID Integral Time | Process PID: Integral Time | Write | ||
| AV | 56 | PID Differentiation Time | Process PID: Differentiation Time | Write | ||
| AV | 57 | PID Diff. Gain Limit | Process PID: Diff. Gain Limit | Write | ||
| AV | 58 | Sensorless Readout | Sensorless pump flow/pressure readout | Read | ||
| BI | 0 | Digital input Term 33 | Drive digital input state | Read | ||
| BI | 1 | Digital input Term 32 | Drive digital input state | Read | ||
| BI | 2 | Digital input Term 29 | Drive digital input state | Read | ||
| BI | 3 | Digital input Term 27 | Drive digital input state | Read | ||
| BI | 4 | Digital input Term 19 | Drive digital input state | Read | ||
| BI | 5 | Digital input Term 18 | Drive digital input state | Read | ||
| BI | 6 | Digital input Term 37 | Drive digital input state | Read | ||
| BI | 7 | Digital Input X30/2 | Drive digital input state | Read | ||
| BI | 8 | Digital Input X30/3 | Drive digital input state | Read | ||
| BI | 9 | Digital Input X30/4 | Drive digital input state | Read | ||
| BI | 10 | Digital input P1660/10 | Drive digital input state | Read | ||
| BI | 11 | Digital input P1660/11 | Drive digital input state | Read | ||
| BI | 12 | Digital input P1660/12 | Drive digital input state | Read | ||
| BI | 13 | Digital input P1660/13 | Drive digital input state | Read | ||
| BI | 14 | Digital input P1660/14 | Drive digital input state | Read | ||
| BI | 15 | Digital input P1660/15 | Drive digital input state | Read | ||
| BO | 0 | Digital Output Term 27 | Digital or relay output written over the bus | Write | ||
| BO | 1 | Digital Output Term 29 | Digital or relay output written over the bus | Write | ||
| BO | 2 | GPIO Output Term X30/6 | Digital or relay output written over the bus | Write | ||
| BO | 3 | GPIO Output Term X30/7 | Digital or relay output written over the bus | Write | ||
| BO | 4 | Relay 1 | Digital or relay output written over the bus | Write | ||
| BO | 5 | Relay 2 | Digital or relay output written over the bus | Write | ||
| BO | 6 | Option B Relay 1 Output | Digital or relay output written over the bus | Write | ||
| BO | 7 | Option B Relay 2 Output | Digital or relay output written over the bus | Write | ||
| BO | 8 | Option B Relay 3 Output | Digital or relay output written over the bus | Write | ||
| BO | 9 | Reserved output P590/09 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BO | 10 | Reserved output P590/10 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BO | 11 | Reserved output P590/11 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BO | 12 | Reserved output P590/12 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BO | 13 | Reserved output P590/13 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BO | 14 | Reserved output P590/14 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BO | 15 | Reserved output P590/15 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BO | 16 | Option C Relay 1 Output | Digital or relay output written over the bus | Write | ||
| BO | 17 | Option C Relay 2 Output | Digital or relay output written over the bus | Write | ||
| BO | 18 | Option C Relay 3 Output | Digital or relay output written over the bus | Write | ||
| BO | 19 | Option C Relay 4 Output | Digital or relay output written over the bus | Write | ||
| BO | 20 | Option C Relay 5 Output | Digital or relay output written over the bus | Write | ||
| BO | 21 | Option C Relay 6 Output | Digital or relay output written over the bus | Write | ||
| BO | 22 | Option C Relay 7 Output | Digital or relay output written over the bus | Write | ||
| BO | 23 | Option C Relay 8 Output | Digital or relay output written over the bus | Write | ||
| BO | 24 | Reserved output P590/24 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BO | 25 | Reserved output P590/25 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BO | 26 | Reserved output P590/26 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BO | 27 | Reserved output P590/27 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BO | 28 | Reserved output P590/28 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BO | 29 | Reserved output P590/29 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BO | 30 | Reserved output P590/30 | Reserved digital output (parameter 5-90 bit) | Write | ||
| BVmin | 1 | RUN/STOP Command | Run / stop command | Write | ||
| BV | 2 | REF 1/REF 2 Select | Selects reference 1 or 2 | Write | ||
| BVmin | 3 | Fault Reset Command | Fault reset command | Write | ||
| BVmin | 4 | RUN/STOP Monitor | Run / stop status | Read | ||
| BVmin | 5 | OK/FAULT Monitor | OK / fault status | Read | ||
| BV | 6 | HAND / AUTO Reference | Hand / auto reference status | Read | ||
| BV | 21 | Warning | Drive warning active | Read | ||
| BV | 22 | Trip | Drive tripped | Read | ||
| BV | 23 | Triplock | Drive trip-locked | Read | ||
| BV | 24 | Coasting | Coast stop command | Write | ||
| BV | 25 | CW/CCW | Rotation direction command | Write | ||
| BV | 26 | Jog | Jog command | Write | ||
| BV | 27 | Reset | Reset command | Write | ||
| BV | 28 | Reset KWh Counter | Reset command | Write | ||
| BV | 29 | Reset Running Hours Counter | Reset command | Write | ||
| BV | 30 | Reverse | Running in reverse | Read | ||
| BV | 31 | Speed = reference | Speed equals reference | Read | ||
| BVmin | 32 | Bus Control | Drive under bus control | Read | ||
| BV | 33 | Running | Motor running | Read | ||
| BV | 34 | Ramp 1/Ramp 2 | Ramp 1 or 2 in use | Read | ||
| BV | 35 | ECB Test Mode | Electronically controlled bypass: Test Mode | Read | ||
| BV | 36 | ECB Drivemode | Electronically controlled bypass: Drivemode | Read | ||
| BV | 37 | ECB Aut. Bypass Enable | Electronically controlled bypass: Aut. Bypass Enable | Read | ||
| BV | 38 | ECB Bypass Mode | Electronically controlled bypass: Bypass Mode | Read | ||
| BV | 40 | ECB State | Electronically controlled bypass: State | Read | ||
| BV | 41 | ECB Overload Trip | Electronically controlled bypass: Overload Trip | Read | ||
| BV | 42 | M2 Fault | Bypass motor M2 fault | Read | ||
| BV | 43 | M3 Fault | Bypass motor M3 fault | Read | ||
| BV | 44 | ECB External Interlock | Electronically controlled bypass: External Interlock | Read | ||
| BV | 45 | ECB Manual Override | Electronically controlled bypass: Manual Override | Read | ||
| MO | 0 | Smart Logic Controller State | Smart logic controller state | Read | ||
| MO | 1 | Active Setup | Active parameter setup | Write |
No points match these filters.
Integration notes
- The point list prints names as e.g. "analog_value: 1 (Speed Act Value)"; the text in brackets is used as the object name here.
- Rows the list marks as Reserved or NA are left out.
- MO 0 is labelled MSO:0 in the ID column but named multi_state_value in the list; check the object type on site.
- Bus commands only take effect when the drive is set to accept bus control.
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 FC-102 Embedded BACnet (pump drive) 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 Bell & Gossett FC-102 Embedded BACnet (pump drive)
How many BACnet points does the Bell & Gossett FC-102 Embedded BACnet (pump drive) have?
This list has 125 BACnet objects: 7 analog inputs, 7 analog outputs, 32 analog values, 16 binary inputs, 31 binary outputs, 30 binary values, 2 multi-state outputs. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Bell & Gossett FC-102 Embedded BACnet (pump drive) BACnet points are writable?
62 of the 125 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 Bell & Gossett FC-102 Embedded BACnet (pump drive) BACnet documentation?
The source is BacNET Points Firmware 3.90 and above (MCA109 FC-102 Advanced BACnet Option / FC-102 Embedded BACnet) (BGBACNET), revision December 2019, published free by Bell & Gossett at https://prod.xylem.com/siteassets/brand/bell-amp-gossett/resources/manual/bgbacnet.pdf.
What are the minimum BACnet points to integrate the Bell & Gossett FC-102 Embedded BACnet (pump drive)?
Start with BV 1 RUN/STOP Command (Start/stop the drive from the BMS); AV 1 Input Reference 1 (Speed reference from the BMS (open-loop control)); AV 30 Setpoint 1 (Process setpoint 1 (when the drive runs its own PID)); BV 3 Fault Reset Command (Reset a tripped drive); BV 4 RUN/STOP Monitor (Running status); BV 32 Bus Control (Drive is under bus control); AV 3 Output Speed (Actual drive output speed); AV 6 Power (Drive output power); BV 5 OK/FAULT Monitor (Any active drive fault); AV 51 Fault Code (Active fault code number).
How do I enable BMS control of the Bell & Gossett FC-102 Embedded BACnet (pump drive)?
BV 1 RUN/STOP Command starts and stops the drive and BV 2 selects reference 1 or 2; BV 32 shows whether the drive is under bus control. The point list does not explain how bus control is set up on the drive.
Can the BMS supply sensor values to the Bell & Gossett FC-102 Embedded BACnet (pump drive)?
AV 31, AV 36 and AV 41 Bus Feedback 1-3 and AV 1/AV 2 Input Reference are writable; the point list does not describe how the drive uses them.
How do I check these points on the real FC-102 Embedded BACnet (pump drive)?
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 Bell & Gossett BACnet points lists
- Pump variable frequency drive BACnet option card
Bell & Gossett MCA 109 Advanced BACnet Option (FC-102)
Bell & Gossett pump packages with an FC-102 drive fitted with the MCA 109 Advanced BACnet option card (firmware 3.90 and above).
Also known as: MCA109, MCA 109, FC-102 BACnet option, VLT BACnet option - Constant speed pump system controller
Bell & Gossett Technologic Constant Speed Pump Controller
Bell & Gossett Technologic constant speed pumping systems for up to six pumps, with the BACnet MS/TP interface.
Also known as: Technologic CS, Technologic constant speed, B&G Technologic, ITT Technologic
Source: BacNET Points Firmware 3.90 and above (MCA109 FC-102 Advanced BACnet Option / FC-102 Embedded BACnet) · BGBACNET · rev. December 2019. Object names, instances and units are reproduced as published; descriptions are our own.