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UPS (uninterruptible power supply) · BACnet points list

Vertiv Liebert NXL 50 Hz UPS (CE, models 48 and 49) BACnet points list

Updated 6 November 2026

Short answer

The Liebert NXL 50 Hz 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 330 BACnet objects for the Vertiv Liebert NXL 50 Hz UPS (CE, models 48 and 49) — 2 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 NXL 50 Hz UPS (CE, models 48 and 49)
Equipment
UPS (uninterruptible power supply)
Equipment type
Other equipment
BACnet objects
330 (2 writable)
Transport
BACnet IP, BACnet MS/TP
Firmware
Not stated
Also known as
Liebert NXL, NXL model 48, NXL model 49, 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 330 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 NXL 50 Hz UPS (CE, models 48 and 49)

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 944123_1Normal, warning or alarm stateRead
MV 954872_1Load on inverter, bypass or batteryRead
AV 514150_1Estimated battery runtime, minRead
AV 884208_1Output power, kWRead
AV 14097_1Input voltage, VRead
AV 784201_1Output voltage, VRead
AV 844204_1Output current, ARead
BV 384168_1Load is on batteryRead
BV 1764300_1Internal communication lostRead

Network setup

Watch out for

Vertiv Liebert NXL 50 Hz UPS (CE, models 48 and 49) 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.

330 of 330 shown
Type
AnalogBinaryMulti-state
Access
Show
Vertiv Liebert NXL 50 Hz UPS (CE, models 48 and 49) BACnet Points List
DescriptionStates
BV14122_1System Input Power ProblemReadActive = alarm
BV24146_1System Input Phs Rotation ErrorReadActive = alarm
BV34147_1System Input Current LimitReadActive = alarm
BV44382_1System Input Current ImbalanceReadActive = alarm
BV154135_1Bypass Not AvailableReadActive = alarm
BV164132_1Bypass Overload Phase AReadActive = alarm
BV174133_1Bypass Overload Phase BReadActive = alarm
BV184134_1Bypass Overload Phase CReadActive = alarm
BV194138_1Bypass Auto Retransfer FailedReadActive = alarm
BV204142_1Bypass Static Switch OverloadReadActive = alarm
BV214143_1Bypass Static Switch UnavailableReadActive = alarm
BV224145_1Bypass Auto Transfer FailedReadActive = alarm
BV234175_1Bypass Frequency ErrorReadActive = alarm
BV244218_1Bypass - Manual Rexfr InhibitedReadActive = alarm
BV254217_1Bypass - Manual Xfr InhibitedReadActive = alarm
BV364740_1Battery Automatic Test InhibitedReadActive = alarm
BV374166_1Battery Capacity LowReadActive = alarm
BVmin384168_1Battery DischargingReadActive = alarm
BV394169_1Battery Temperature ImbalanceReadActive = alarm
BV404170_1Battery EqualizeReadActive = alarm
BV414172_1Battery Auto Test In ProgressReadActive = alarm
BV424173_1Main Battery Disconnect OpenReadActive = alarm
BV434162_1Battery LowReadActive = alarm
BV444174_1Battery Temperature Sensor FaultReadActive = alarm
BV454176_1Battery Circuit Breaker 1 OpenReadActive = alarm
BV464179_1Battery Circuit Breaker 2 OpenReadActive = alarm
BV474182_1Battery Circuit Breaker 3 OpenReadActive = alarm
BV484185_1Battery Circuit Breaker 4 OpenReadActive = alarm
BV494188_1Battery Circuit Breaker 5 OpenReadActive = alarm
BV504191_1Battery Circuit Breaker 6 OpenReadActive = alarm
BV514220_1Battery - External Monitor 1ReadActive = alarm
BV524221_1Battery - External Monitor 2ReadActive = alarm
BV534222_1Battery Ground FaultReadActive = alarm
BV545871_1Battery Over Temperature LimitReadActive = alarm
BV554742_1Battery Low ShutdownReadActive = alarm
BV564219_1Battery Over TemperatureReadActive = alarm
BV574323_1Battery Test FailedReadActive = alarm
BV585873_1Unexpected Main Battery Disconnect ClosureReadActive = alarm
BV595874_1Battery Over VoltageReadActive = alarm
BV605875_1Battery Fuse FaultReadActive = alarm
BV615878_1Main Battery Disconnect Forced To UnlockReadActive = alarm
BV656354_1Battery ChargingReadActive = alarm
BV745563_1DC Bus Low FaultReadActive = alarm
BV854213_1System Shutdown - EPOReadActive = alarm
BV864214_1System Shutdown - REPOReadActive = alarm
BV884230_1System Output Low Power FactorReadActive = alarm
BV894286_1Output Amp Over User Limit-Phs AReadActive = alarm
BV904287_1Output Amp Over User Limit-Phs BReadActive = alarm
BV914288_1Output Amp Over User Limit-Phs CReadActive = alarm
BV924389_1System Output FaultReadActive = alarm
BV935144_1Output Of/UfReadActive = alarm
BV1044233_1Inverter FailureReadActive = alarm
BV1054234_1Inverter Overload Phase AReadActive = alarm
BV1064235_1Inverter Overload Phase BReadActive = alarm
BV1074236_1Inverter Overload Phase CReadActive = alarm
BV1084237_1Inverter Inhibit - ExternalReadActive = alarm
BV1094290_1Inverter Shutdown - OverloadReadActive = alarm
BV1104391_1Inverter Static Switch SCR ShortReadActive = alarm
BV1214294_1Inlet Air Over TemperatureReadActive = alarm
BV1225768_1Outlet Air Overtemperature LimitReadActive = alarm
BV1234747_1Equipment Temperature Sensor FailReadActive = alarm
BV1344270_1Input Contact 01ReadActive = alarm
BV1354271_1Input Contact 02ReadActive = alarm
BV1364272_1Input Contact 03ReadActive = alarm
BV1374273_1Input Contact 04ReadActive = alarm
BV1384274_1Input Contact 05ReadActive = alarm
BV1394275_1Input Contact 06ReadActive = alarm
BV1404276_1Input Contact 07ReadActive = alarm
BV1414277_1Input Contact 08ReadActive = alarm
BV1424278_1Input Contact 09ReadActive = alarm
BV1434279_1Input Contact 10ReadActive = alarm
BV1444280_1Input Contact 11ReadActive = alarm
BV1454281_1Input Contact 12ReadActive = alarm
BV1464282_1Input Contact 13ReadActive = alarm
BV1474283_1Input Contact 14ReadActive = alarm
BV1484284_1Input Contact 15ReadActive = alarm
BV1494285_1Input Contact 16ReadActive = alarm
BV1604295_1Rectifier FailureReadActive = alarm
BV1625879_1Vdc BackfeedReadActive = alarm
BV1635880_1Rectifier Configuration Change RequestReadActive = alarm
BV1744749_1System Fan Failure - RedundantReadActive = alarm
BV1754750_1Multiple Fan FailureReadActive = alarm
BVmin1764300_1Internal Communications FailureReadActive = alarm
BV1774298_1UPS Output on BypassReadActive = alarm
BV1784299_1Output Load on Maint. BypassReadActive = alarm
BV1794325_1Backfeed Breaker OpenReadActive = alarm
BV1804316_1Auto Restart In ProgressReadActive = alarm
BV1814314_1Power Supply FailureReadActive = alarm
BV1834317_1Auto Restart Inhibited - ExtReadActive = alarm
BV1844439_1Automatic Restart FailedReadActive = alarm
BV1854753_1Main Controller FaultReadActive = alarm
BV1864440_1Fuse FailureReadActive = alarm
BV1874441_1System Controller ErrorReadActive = alarm
BV1884442_1System Breaker(s) Open FailureReadActive = alarm
BV1894754_1System Breaker(s) Close FailureReadActive = alarm
BV1904755_1Input Filter Cycle LockReadActive = alarm
BV1915769_1EMO ShutdownReadActive = alarm
BV1924756_1Service Code ActiveReadActive = alarm
BV1934757_1LBS ActiveReadActive = alarm
BV1944758_1LBS InhibitedReadActive = alarm
BV1955881_1Regeneration ActiveReadActive = alarm
BV1965882_1Regeneration Operation TerminatedReadActive = alarm
BV1975883_1Regeneration Operation FailureReadActive = alarm
BV1984759_1Leading Power FactorReadActive = alarm
BV1994760_1Controls Reset RequiredReadActive = alarm
BV2124825_1Loss of RedundancyReadActive = alarm
BV2154831_1MMS OverloadReadActive = alarm
BV2164834_1MMS On BatteryReadActive = alarm
BV2185145_1MMS Module Alarm ActiveReadActive = alarm
BV2295884_1Program Input Contact 01ReadActive = alarm
BV2305885_1Program Input Contact 02ReadActive = alarm
BV2315886_1Program Input Contact 03ReadActive = alarm
BV2325887_1Program Input Contact 04ReadActive = alarm
BV2335888_1Program Input Contact 05ReadActive = alarm
BV2345889_1Program Input Contact 06ReadActive = alarm
BV2355890_1Program Input Contact 07ReadActive = alarm
BV2365891_1Program Input Contact 08ReadActive = alarm
BV2375892_1Program Input Contact 09ReadActive = alarm
BV2385893_1Program Input Contact 10ReadActive = alarm
BV2395894_1Program Input Contact 11ReadActive = alarm
BV2405895_1Program Input Contact 12ReadActive = alarm
BV2515567_1IP InhibitReadActive = alarm
BV2625456_1ECO Mode ActiveReadActive = alarm
BV2635457_1ECO Mode SuspendedReadActive = alarm
BV2645458_1Excess ECO SuspendsReadActive = 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
AV184125_1Bypass Input Voltage RMS A-BVRead
AV194126_1Bypass Input Voltage RMS B-CVRead
AV204127_1Bypass Input Voltage RMS C-AVRead
AV214131_1Bypass Input FrequencyHzRead
AV224136_1Bypass Sync Phase DifferencedegRead
AV234157_1Bypass SS Overload Time RemainsRead
AV244738_1Auto Retransfer Time RemainingsRead
AV256456_1Total Bypass Operating TimehRead
AV354152_1Battery Total Discharge TimehRead
AV364153_1Battery Percentage ChargeRead
AV374154_1Battery Volts at Main DisconnectVDCRead
AV384155_1_1Battery Volts for Cabinet 1VDCRead
AV394155_1_2Battery Volts for Cabinet 2VDCRead
AV404155_1_3Battery Volts for Cabinet 3VDCRead
AV414155_1_4Battery Volts for Cabinet 4VDCRead
AV424155_1_5Battery Volts for Cabinet 5VDCRead
AV434155_1_6Battery Volts for Cabinet 6VDCRead
AV444156_1_1Battery Temperature for Cabinet 1°CRead
AV100444156_1_1_deg_FBattery Temperature for Cabinet 1°FRead
AV454156_1_2Battery Temperature for Cabinet 2°CRead
AV100454156_1_2_deg_FBattery Temperature for Cabinet 2°FRead
AV464156_1_3Battery Temperature for Cabinet 3°CRead
AV100464156_1_3_deg_FBattery Temperature for Cabinet 3°FRead
AV474156_1_4Battery Temperature for Cabinet 4°CRead
AV100474156_1_4_deg_FBattery Temperature for Cabinet 4°FRead
AV484156_1_5Battery Temperature for Cabinet 5°CRead
AV100484156_1_5_deg_FBattery Temperature for Cabinet 5°FRead
AV494156_1_6Battery Temperature for Cabinet 6°CRead
AV100494156_1_6_deg_FBattery Temperature for Cabinet 6°FRead
AV504739_1Battery Amp-Hours Consumed This DischargeAHRead
AVmin514150_1Battery Time RemainingminRead
AV524151_1Battery Discharge TimesRead
AV534159_1Battery Discharge PowerWRead
AV544161_1Battery Last Discharge DateRead
AV554158_1Battery Amp-Hours ConsumedAHRead
AV664148_1DC Bus VoltageVDCRead
AV674149_1DC Bus CurrentA DCRead
AVmin784201_1System Output Voltage RMS A-BVRead
AV794202_1System Output Voltage RMS B-CVRead
AV804203_1System Output Voltage RMS C-AVRead
AV814385_1System Output Voltage RMS A-NVRead
AV824386_1System Output Voltage RMS B-NVRead
AV834387_1System Output Voltage RMS C-NVRead
AVmin844204_1System Output RMS Current Phs AARead
AV854205_1System Output RMS Current Phs BARead
AV864206_1System Output RMS Current Phs CARead
AV874207_1System Output FrequencyHzRead
AVmin884208_1System Output PowerkWRead
AV894209_1System Output Apparent PowerkVARead
AV904210_1System Output Power Factor Phs ARead
AV914211_1System Output Power Factor Phs BRead
AV924212_1System Output Power Factor Phs CRead
AV934223_1System Output Pct Power Phase A%Read
AV944224_1System Output Pct Power Phase B%Read
AV954225_1System Output Pct Power Phase C%Read
AV964226_1System Output Pct Pwr (VA) Phs A%Read
AV974227_1System Output Pct Pwr (VA) Phs B%Read
AV984228_1System Output Pct Pwr (VA) Phs C%Read
AV1094232_1Inverter Overload Time RemainingsRead
AV1204291_1Inlet Air Temperature°CRead
AV101204291_1_deg_FInlet Air Temperature°FRead
AV1214292_1Total System Operating TimehRead
AV1224293_1System Date and TimeWrite
AV1334259_1Bypass Nominal VoltageVRead
AV1344102_1System Input Nominal VoltageVRead
AV1354103_1System Input Nominal FrequencyHzRead
AV1364260_1System Output Nominal VoltageVRead
AV1374261_1System Output Nominal FrequencyHzRead
AV1384262_1Battery Cell Count - Lead AcidRead
AV1394263_1Battery Cell Count-Nickel CadmiumRead
AV1404264_1Output Apparent Power RatingkVARead
AV1414265_1Output Real Power RatingkWRead
AV1424268_1System UPS Module CountRead
AV1434267_1System Output Maximum Amp RatingARead
AV1444269_1System Redundant UPS ModulesRead
AV1554801_1Multi-module System Output Voltage RMS A-BVRead
AV1564802_1Multi-module System Output Voltage RMS B-CVRead
AV1574803_1Multi-module System Output Voltage RMS C-AVRead
AV1584804_1Multi-module System Output Voltage RMS A-NVRead
AV1594805_1Multi-module System Output Voltage RMS B-NVRead
AV1604806_1Multi-module System Output Voltage RMS C-NVRead
AV1614807_1Sum of MMS Output RMS Currents for Phase AARead
AV1624808_1Sum of MMS Output RMS Currents for Phase BARead
AV1634809_1Sum of MMS Output RMS Currents for Phase CARead
AV1644810_1MMS Output FrequencyHzRead
AV1654811_1MMS Output PowerkWRead
AV1664812_1MMS Output Apparent PowerkVARead
AV1674813_1MMS Output Power Factor Phase ARead
AV1684814_1MMS Output Power Factor Phase BRead
AV1694815_1MMS Output Power Factor Phase CRead
AV1704816_1MMS Output Pct Power Phase A%Read
AV1714817_1MMS Output Pct Power Phase B%Read
AV1724818_1MMS Output Pct Power Phase C%Read
AV1734819_1MMS Output Pct Apparent Pwr (kVA) Phase A%Read
AV1744820_1MMS Output Pct Apparent Pwr (kVA) Phase B%Read
AV1754821_1MMS Output Pct Apparent Pwr (kVA) Phase C%Read
AV1764822_1Number of Redundant ModulesRead
AV1774829_1MMS Module NumberRead
AV1784833_1Number of Modules in a MMSRead
AV1895451_1Intelligent Parallel Minimum RedundancyRead
AV1905452_1Intelligent Parallel Maximum Time in StandbydayRead
AV2015459_1Maximum Auto Suspensions - ECO ModeRead
AV2025460_1Restart Delay - ECO ModeminRead
AV2035466_1Time Remaining - ECO ModeminRead
AV2145464_1_1Schedule Hour - ECO Mode (EcoModeSchedule 1)hRead
AV2155465_1_1Schedule Minute - ECO Mode (EcoModeSchedule 1)minRead
AV2265464_1_2Schedule Hour - ECO Mode (EcoModeSchedule 2)hRead
AV2275465_1_2Schedule Minute - ECO Mode (EcoModeSchedule 2)minRead
AV3705464_1_14Schedule Hour - ECO Mode (EcoModeSchedule 14)hRead
AV3715465_1_14Schedule Minute - ECO Mode (EcoModeSchedule 14)minRead
MV14735_1Input Qualification StatusRead1=Fail, 2=Marginal Low, 3=Normal, 4=Marginal High
MV124736_1Static Bypass SwitchRead1=off, 2=on
MV134737_1Bypass Qualification StatusRead1=Fail, 2=Marginal Low, 3=Normal, 4=Marginal High
MV244871_1UPS Battery StatusRead1=Unknown, 2=Normal, 3=Low, 4=Depleted
MV255872_1The main battery disconnect statusRead1=Open, 2=Closed, 3=Disabled
MV265876_1Battery SCR StatusRead1=OK, 2=Fault, 3=unknown
MV275877_1Main Battery Disconnect Switch Lock StatusRead1=Locked, 2=Unlocked, 3=unknown
MV384743_1DC Bus Qualification StatusRead1=Fail, 2=Marginal Low, 3=Normal, 4=Marginal High
MV494744_1Output Qualification StatusRead1=Fail, 2=Marginal Low, 3=Normal, 4=Marginal High
MV604745_1Inverter Output Qualification StatusRead1=Fail, 2=Marginal Low, 3=Normal, 4=Marginal High
MV614746_1Inverter On/Off StateRead1=off, 2=on
MV724257_1Rectifier Pulse CountRead1=6 Pulse, 2=12 Pulse, 3=18 Pulse, 4=24 Pulse
MV734258_1Rectifier Input Passive FilterRead1=Not Installed, 2=Installed
MV744301_1Rectifier Passive Filter SwitchRead1=Not Installed, 2=Installed
MV754302_1Rectifier Active FilterRead1=Not Installed, 2=Installed
MV764748_1Rectifier StatusRead1=off, 2=on
MV874303_1UPS Module TypeRead1=Single Module System, 2=Module (1 + 1), 3=Module (1 + N), 4=Module (N + 1), 5=System Control Cabinet, 6=Main Static Switch
MV884304_1Bypass Input Wire ConfigurationRead1=Two Wire (single phase + return), 2=Two Wire (2 phase, no neutral), 3=Three Wire (2 phase + neutral), 4=Three Wire (3 phase, no neutral), 5=Four Wire (3 phases + neutral)
MV894305_1Output Wire ConfigurationRead1=Two Wire (single phase + return), 2=Two Wire (2 phase, no neutral), 3=Three Wire (2 phase + neutral), 4=Three Wire (3 phase, no neutral), 5=Four Wire (3 phases + neutral)
MV904306_1Static Switch TypeRead1=Not Applicable, 2=Continuous Duty, 3=Momentary Duty
MV914751_1Configuration DescriptionRead1=Single Module System 33, 2=Single Module System 34, 3=Single Module System 44, 4=1+1 33, 5=1+1 34, 6=1+1 44, 7=1+N 33, 8=1+N 34, 9=1+N 44, 10=N+1 33, 11=N+1 34, 12=N+1 44, 13=SCC w/Continuous Duty SS 33, 14=SCC w/Continuous Duty SS 44, 15=SCC w/Momentary Duty SS, 16=Main Static Switch
MV924307_1UPS System Output SourceRead1=None, 2=Inverter, 3=Bypass
MV934318_1System Input Power SourceRead1=None, 2=Utility (mains), 3=Generator
MVmin944123_1System StatusRead1=Normal Operation, 2=StartUp, 3=Normal with Warning, 4=Normal with Alarm, 5=Abnormal Operation
MVmin954872_1UPS Output SourceRead1=Other, 2=Off, 3=Normal, 4=Bypass, 5=Battery, 6=Booster, 7=Reducer
MV964326_1System Fan StatusRead1=Unknown, 2=Normal, 3=Failure
MV974327_1System Fan Redundant StatusRead1=Unknown, 2=Redundancy Available, 3=Loss of Redundancy
MV984328_1System Fan Capacity StatusRead1=Unknown, 2=Normal, 3=Failure
MV1094266_1Input Isolation TransformerRead1=Not Installed, 2=Installed
MV1204764_1Backfeed BreakerRead1=Open, 2=Close, 3=Not Installed
MV1214765_1SBS Load DisconnectRead1=Open, 2=Close, 3=Not Installed
MV1224766_1Input BreakerRead1=Open, 2=Close, 3=Not Installed
MV1234767_1Trap Filter DisconnectRead1=Open, 2=Close, 3=Not Installed
MV1244768_1Output BreakerRead1=Open, 2=Close, 3=Not Installed
MV1254769_1Internal Bypass BreakerRead1=Open, 2=Close, 3=Not Installed
MV1264770_1Bypass Isolation BreakerRead1=Open, 2=Close, 3=Not Installed
MV1274772_1Maintenance Bypass BreakerRead1=Open, 2=Close, 3=Not Installed
MV1284773_1Maintenance Isolation BreakerRead1=Open, 2=Close, 3=Not Installed
MV1294774_1Output Series Static SwitchRead1=Off, 2=On, 3=Not Installed
MV1304775_1Module Output BreakerRead1=Open, 2=Close, 3=Not Installed
MV1414836_1Module Output Breaker for Module 1Read1=Open, 2=Close, 3=Not Installed
MV1424837_1Module Output Breaker for Module 2Read1=Open, 2=Close, 3=Not Installed
MV1434838_1Module Output Breaker for Module 3Read1=Open, 2=Close, 3=Not Installed
MV1444839_1Module Output Breaker for Module 4Read1=Open, 2=Close, 3=Not Installed
MV1454840_1Module Output Breaker for Module 5Read1=Open, 2=Close, 3=Not Installed
MV1464841_1Module Output Breaker for Module 6Read1=Open, 2=Close, 3=Not Installed
MV1474842_1Module Output Breaker for Module 7Read1=Open, 2=Close, 3=Not Installed
MV1484843_1Module Output Breaker for Module 8Read1=Open, 2=Close, 3=Not Installed
MV1494844_1Bypass Isolation Breaker for Module 1Read1=Open, 2=Close, 3=Not Installed
MV1504845_1Bypass Isolation Breaker for Module 2Read1=Open, 2=Close, 3=Not Installed
MV1514846_1Bypass Isolation Breaker for Module 3Read1=Open, 2=Close, 3=Not Installed
MV1524847_1Bypass Isolation Breaker for Module 4Read1=Open, 2=Close, 3=Not Installed
MV1534848_1Bypass Isolation Breaker for Module 5Read1=Open, 2=Close, 3=Not Installed
MV1544849_1Bypass Isolation Breaker for Module 6Read1=Open, 2=Close, 3=Not Installed
MV1554850_1Bypass Isolation Breaker for Module 7Read1=Open, 2=Close, 3=Not Installed
MV1564851_1Bypass Isolation Breaker for Module 8Read1=Open, 2=Close, 3=Not Installed
MV1574852_1System Output BreakerRead1=Open, 2=Close, 3=Not Installed
MV1584853_1System Load Bank BreakerRead1=Open, 2=Close, 3=Not Installed
MV1594854_1System Isolation Output BreakerRead1=Open, 2=Close, 3=Not Installed
MV1604855_1SCC Event SummaryRead1=None, 2=Alarm, 3=Fault
MV1624874_1MMS UPS Output SourceRead1=Other, 2=Off, 3=Normal, 4=Bypass, 5=Battery, 6=Booster, 7=Reducer
MV1734856_1MMS Inter-Module Comm Status (ModuleList 1)Read1=Failed, 2=Normal
MV1744857_1MMS Event Summary (ModuleList 1)Read1=None, 2=Alarm, 3=Fault
MV1754858_1MMS Module Inverter Status (ModuleList 1)Read1=off, 2=on
MV1764859_1MMS Module Output Voltage Status (ModuleList 1)Read1=Fail, 2=Marginal Low, 3=Normal, 4=Marginal High
MV1774860_1MMS Module Output Source (ModuleList 1)Read1=Off, 2=Normal, 3=Bypass, 4=Maintenance Bypass
MV1884856_2MMS Inter-Module Comm Status (ModuleList 2)Read1=Failed, 2=Normal
MV1894857_2MMS Event Summary (ModuleList 2)Read1=None, 2=Alarm, 3=Fault
MV1904858_2MMS Module Inverter Status (ModuleList 2)Read1=off, 2=on
MV1914859_2MMS Module Output Voltage Status (ModuleList 2)Read1=Fail, 2=Marginal Low, 3=Normal, 4=Marginal High
MV1924860_2MMS Module Output Source (ModuleList 2)Read1=Off, 2=Normal, 3=Bypass, 4=Maintenance Bypass
MV2784856_8MMS Inter-Module Comm Status (ModuleList 8)Read1=Failed, 2=Normal
MV2794857_8MMS Event Summary (ModuleList 8)Read1=None, 2=Alarm, 3=Fault
MV2804858_8MMS Module Inverter Status (ModuleList 8)Read1=off, 2=on
MV2814859_8MMS Module Output Voltage Status (ModuleList 8)Read1=Fail, 2=Marginal Low, 3=Normal, 4=Marginal High
MV2824860_8MMS Module Output Source (ModuleList 8)Read1=Off, 2=Normal, 3=Bypass, 4=Maintenance Bypass
MV2935448_1Intelligent Parallel Operation StateRead1=disabled, 2=enabled
MV3045454_1ECO Mode Operation StateWrite1=disabled, 2=enabled
MV3055455_1Continuous Operation - ECO ModeRead1=disabled, 2=enabled
MV3165461_1_1Schedule Operation State - ECO Mode (EcoModeSchedule 1)Read1=disabled, 2=enabled
MV3175462_1_1Schedule Action - ECO Mode (EcoModeSchedule 1)Read1=stop, 2=start
MV3185463_1_1Schedule Day of Week - ECO Mode (EcoModeSchedule 1)Read1=Unknown, 2=Monday, 3=Tuesday, 4=Wednesday, 5=Thursday, 6=Friday, 7=Saturday, 8=Sunday
MV3295461_1_2Schedule Operation State - ECO Mode (EcoModeSchedule 2)Read1=disabled, 2=enabled
MV3305462_1_2Schedule Action - ECO Mode (EcoModeSchedule 2)Read1=stop, 2=start
MV3315463_1_2Schedule Day of Week - ECO Mode (EcoModeSchedule 2)Read1=Unknown, 2=Monday, 3=Tuesday, 4=Wednesday, 5=Thursday, 6=Friday, 7=Saturday, 8=Sunday
MV4855461_1_14Schedule Operation State - ECO Mode (EcoModeSchedule 14)Read1=disabled, 2=enabled
MV4865462_1_14Schedule Action - ECO Mode (EcoModeSchedule 14)Read1=stop, 2=start
MV4875463_1_14Schedule Day of Week - ECO Mode (EcoModeSchedule 14)Read1=Unknown, 2=Monday, 3=Tuesday, 4=Wednesday, 5=Thursday, 6=Friday, 7=Saturday, 8=Sunday
Object ID lookup: Vertiv Liebert NXL 50 Hz 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 NXL 50 Hz UPS (CE, models 48 and 49) 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 NXL 50 Hz UPS (CE, models 48 and 49)

How many BACnet points does the Vertiv Liebert NXL 50 Hz UPS (CE, models 48 and 49) have?

This list has 330 BACnet objects: 117 analog values, 125 binary values, 88 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Vertiv Liebert NXL 50 Hz UPS (CE, models 48 and 49) BACnet points are writable?

2 of the 330 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 NXL 50 Hz UPS (CE, models 48 and 49) 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 NXL 50 Hz UPS (CE, models 48 and 49)?

Start with MV 94 4123_1 (Normal, warning or alarm state); MV 95 4872_1 (Load on inverter, bypass or battery); AV 51 4150_1 (Estimated battery runtime, min); AV 88 4208_1 (Output power, kW); AV 1 4097_1 (Input voltage, V); AV 78 4201_1 (Output voltage, V); AV 84 4204_1 (Output current, A); BV 38 4168_1 (Load is on battery); BV 176 4300_1 (Internal communication lost).

How do I check these points on the real Liebert NXL 50 Hz UPS (CE, models 48 and 49)?

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.