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UPS (uninterruptible power supply) · BACnet points list

Vertiv Liebert APM / NXC / NXR UPS BACnet points list

Updated 6 November 2026

Short answer

The Liebert APM / NXC / NXR UPS reports to a BMS through a Liebert IntelliSlot card (BACnet IP or BACnet MS/TP). Analog Values carry input, bypass, output and battery measurements, Binary Values carry UPS events, and Multi-state Values carry system status, output source and settings. Objects are created when the card discovers the UPS.

This page lists 111 BACnet objects for the Vertiv Liebert APM / NXC / NXR UPS — 1 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Vertiv’s own free documentation, linked below.

Manufacturer
Vertiv
Model
Liebert APM / NXC / NXR UPS
Equipment
UPS (uninterruptible power supply)
Equipment type
Other equipment
BACnet objects
111 (1 writable)
Transport
BACnet IP, BACnet MS/TP
Firmware
Not stated
Also known as
Liebert APM, Liebert NXC, Liebert NXR, SL-28170
Source document
Liebert IntelliSlot Modbus/BACnet Reference Guide (Modbus RTU and TCP, BACnet MSTP and IP) · SL-28170 · rev. 2024-04 (Rev 29)
Download CSV 111 rows Download EDE B.I.G.-EU JSON Manufacturer PDF ↗ Compare with your scan Download Easy BACnet Mobile App Google Play

Reference only, provided as-is: verify against Vertiv’s current documentation and the live device before use. Not official Vertiv information. Terms of use.

BMS integration notes: Vertiv Liebert APM / NXC / NXR UPS

Integration in brief

Fit a Liebert IntelliSlot BACnet card (IS-UNITY-DP for BACnet IP or MS/TP), give it a unique device instance and let it discover the equipment; the objects are then created automatically. Map the status, main measurements and event objects for monitoring.

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.

ObjectNameWhyAccess
MV 154123_1Normal, warning or alarm stateRead
MV 144872_1Load on inverter, bypass or batteryRead
AV 384150_1Estimated battery runtime, minRead
AV 724208_1Output power, kWRead
AV 14097_1Input voltage, VRead
AV 534385_1Output voltage, VRead
AV 564204_1Output current, ARead
BV 524168_1Load is on batteryRead
BV 374300_1Internal communication lostRead

Network setup

Watch out for

Vertiv Liebert APM / NXC / NXR UPS 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.

111 of 111 shown
Type
AnalogBinaryMulti-state
Access
Show
Vertiv Liebert APM / NXC / NXR UPS BACnet Points List
DescriptionStates
BV14172_1Battery Auto Test In ProgressReadActive = alarm
BV24170_1Battery EqualizeReadActive = alarm
BV34200_1Battery Charging InhibitedReadActive = alarm
BV44315_1On GeneratorReadActive = alarm
BV154122_1System Input Power ProblemReadActive = alarm
BV164295_1Rectifier FailureReadActive = alarm
BV174233_1Inverter FailureReadActive = alarm
BV184135_1Bypass Not AvailableReadActive = alarm
BV194162_1Battery LowReadActive = alarm
BV204758_1LBS InhibitedReadActive = alarm
BV214311_1System Fan FailureReadActive = alarm
BV224310_1Equipment Over TemperatureReadActive = alarm
BV234213_1System Shutdown - EPOReadActive = alarm
BV244143_1Bypass Static Switch UnavailableReadActive = alarm
BV254139_1Bypass - Excess Auto RetransfersReadActive = alarm
BV264823_1Parallel Comm WarningReadActive = alarm
BV274314_1Power Supply FailureReadActive = alarm
BV284219_1Battery Over TemperatureReadActive = alarm
BV294146_1System Input Phs Rotation ErrorReadActive = alarm
BV304440_1Fuse FailureReadActive = alarm
BV314234_1Inverter Overload Phase AReadActive = alarm
BV324235_1Inverter Overload Phase BReadActive = alarm
BV334236_1Inverter Overload Phase CReadActive = alarm
BV344831_1MMS OverloadReadActive = alarm
BV354290_1Inverter Shutdown - OverloadReadActive = alarm
BV364389_1System Output FaultReadActive = alarm
BVmin374300_1Internal Communications FailureReadActive = alarm
BV384164_1Battery Charging ErrorReadActive = alarm
BV394382_1System Input Current ImbalanceReadActive = alarm
BV404173_1Main Battery Disconnect OpenReadActive = alarm
BV414391_1Inverter Static Switch SCR ShortReadActive = alarm
BV425149_1Battery Not QualifiedReadActive = alarm
BV435150_1Battery Terminals ReversedReadActive = alarm
BV445151_1Battery Converter FailureReadActive = alarm
BV455152_1Inverter SCR OpenReadActive = alarm
BV465153_1Load Sharing FaultReadActive = alarm
BV475154_1DC Bus AbnormalReadActive = alarm
BV485155_1Mains Input Neutral LostReadActive = alarm
BV495156_1Load Impact TransferReadActive = alarm
BV505157_1User Operation InvalidReadActive = alarm
BV515158_1Power Sub Module FaultReadActive = alarm
BVmin524168_1Battery DischargingReadActive = alarm
BV534298_1UPS Output on BypassReadActive = alarm
BV544299_1Output Load on Maint. BypassReadActive = alarm
BV554166_1Battery Capacity LowReadActive = alarm
BV564834_1MMS On BatteryReadActive = alarm
BV574825_1Loss of RedundancyReadActive = alarm
BV585770_1Top Outlet Fan FaultReadActive = alarm
BV595771_1MMS Over CapacityReadActive = alarm
BV606065_1Battery Charge Equalization TimeoutReadActive = alarm
AVmin14097_1System Input RMS A-BVRead
AV24099_1System Input RMS B-CVRead
AV34101_1System Input RMS C-AVRead
AV44113_1System Input RMS Current Phase AARead
AV54114_1System Input RMS Current Phase BARead
AV64115_1System Input RMS Current Phase CARead
AV74105_1System Input FrequencyHzRead
AV84096_1System Input RMS A-NVRead
AV94098_1System Input RMS B-NVRead
AV104100_1System Input RMS C-NVRead
AV114116_1System Input Power Factor Phs ARead
AV124117_1System Input Power Factor Phs BRead
AV134118_1System Input Power Factor Phs CRead
AV146322_1UPS input real powerkWRead
AV156318_1System Input Power Phase AkWRead
AV166319_1System Input Power Phase BkWRead
AV176320_1System Input Power Phase CkWRead
AV244128_1Bypass Input Voltage RMS A-NVRead
AV254129_1Bypass Input Voltage RMS B-NVRead
AV264130_1Bypass Input Voltage RMS C-NVRead
AV274131_1Bypass Input FrequencyHzRead
AVmin384150_1Battery Time RemainingminRead
AV394155_1Battery Volts for CabinetVDCRead
AV404156_1Battery Temperature for Cabinet°CRead
AV100404156_1_deg_FBattery Temperature for Cabinet°FRead
AV414291_1Inlet Air Temperature°CRead
AV100414291_1_deg_FInlet Air Temperature°FRead
AV424149_1DC Bus CurrentA DCRead
AVmin534385_1System Output Voltage RMS A-NVRead
AV544386_1System Output Voltage RMS B-NVRead
AV554387_1System Output Voltage RMS C-NVRead
AVmin564204_1System Output RMS Current Phs AARead
AV574205_1System Output RMS Current Phs BARead
AV584206_1System Output RMS Current Phs CARead
AV594207_1System Output FrequencyHzRead
AV604201_1System Output Voltage RMS A-BVRead
AV614202_1System Output Voltage RMS B-CVRead
AV624203_1System Output Voltage RMS C-AVRead
AV634210_1System Output Power Factor Phs ARead
AV644211_1System Output Power Factor Phs BRead
AV654212_1System Output Power Factor Phs CRead
AV664223_1System Output Pct Power Phase A%Read
AV674224_1System Output Pct Power Phase B%Read
AV684225_1System Output Pct Power Phase C%Read
AV694812_1MMS Output Apparent PowerkVARead
AV704811_1MMS Output PowerkWRead
AV714209_1System Output Apparent PowerkVARead
AVmin724208_1System Output PowerkWRead
AV735159_1Output Current Crest Factor Phs ARead
AV745160_1Output Current Crest Factor Phs BRead
AV755161_1Output Current Crest Factor Phs CRead
AV765859_1System Output Power Phase AkWRead
AV775860_1System Output Power Phase BkWRead
AV785959_1System Output Power Phase CkWRead
AV864293_1System Date and TimeSecs since Epoch(UTC)Write
MV14871_1UPS battery1 statusRead1=Unknown, 2=Normal, 3=Low, 4=Depleted
MV124746_1Inverter On/Off StateRead1=off, 2=on
MV134772_1Maintenance Bypass BreakerRead1=Open, 2=Close, 3=Not Installed
MVmin144872_1UPS Output SourceRead1=Other, 2=Off, 3=Normal, 4=Bypass, 5=Battery, 6=Booster, 7=Reducer
MVmin154123_1System StatusRead1=Normal Operation, 2=StartUp, 3=Normal with Warning, 4=Normal with Alarm, 5=Abnormal Operation
MV165454_1ECO Mode Operation StateRead1=disabled, 2=enabled
Object ID lookup: Vertiv Liebert APM / NXC / NXR UPS point IDs by name

Integration notes

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 Liebert APM / NXC / NXR UPS 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 Vertiv Liebert APM / NXC / NXR UPS

How many BACnet points does the Vertiv Liebert APM / NXC / NXR UPS have?

This list has 111 BACnet objects: 55 analog values, 50 binary values, 6 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Vertiv Liebert APM / NXC / NXR UPS BACnet points are writable?

1 of the 111 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 Vertiv Liebert APM / NXC / NXR UPS BACnet documentation?

The source is Liebert IntelliSlot Modbus/BACnet Reference Guide (Modbus RTU and TCP, BACnet MSTP and IP) (SL-28170), revision 2024-04 (Rev 29), published free by Vertiv at https://www.vertiv.com/49fb41/globalassets/shared/liebert-intellislot-modbus-rtu-reference-guide-SL-28170_0.pdf.

What are the minimum BACnet points to integrate the Vertiv Liebert APM / NXC / NXR UPS?

Start with MV 15 4123_1 (Normal, warning or alarm state); MV 14 4872_1 (Load on inverter, bypass or battery); AV 38 4150_1 (Estimated battery runtime, min); AV 72 4208_1 (Output power, kW); AV 1 4097_1 (Input voltage, V); AV 53 4385_1 (Output voltage, V); AV 56 4204_1 (Output current, A); BV 52 4168_1 (Load is on battery); BV 37 4300_1 (Internal communication lost).

How do I check these points on the real Liebert APM / NXC / NXR UPS?

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 Vertiv BACnet points lists

Source: Liebert IntelliSlot Modbus/BACnet Reference Guide (Modbus RTU and TCP, BACnet MSTP and IP) · SL-28170 · rev. 2024-04 (Rev 29). Object names, instances and units are reproduced as published; descriptions are our own.