[Nut-upsuser] LiebertPSP

Charles Lepple clepple at gmail.com
Fri Sep 30 12:58:57 UTC 2011


Tim,

one slight ambiguity here: the most sane values for UPS.Output.Voltage  
and UPS.Input.Voltage would be 242.0 and 242.5 (from the data below),  
but UPS.PowerSummary.Voltage and UPS.PowerSummary.ConfigVoltage could  
refer to the line voltage or battery voltage.

    0.413040	Report[get]: (3 bytes) => 1d 11 01
    0.413075	Path: UPS.PowerSummary.Voltage, Type: Feature, ReportID:  
0x1d, Offset: 0, Size: 16, Value: 2.73e-06
    0.417039	Report[get]: (3 bytes) => 1f 18 00
    0.417063	Path: UPS.PowerSummary.ConfigVoltage, Type: Feature,  
ReportID: 0x1f, Offset: 0, Size: 16, Value: 2.4e-07
[...]
    0.425040	Report[get]: (3 bytes) => 2b 74 09
    0.425079	Path: UPS.Output.Voltage, Type: Feature, ReportID: 0x2b,  
Offset: 0, Size: 16, Value: 2.42e-05
    0.429059	Report[get]: (2 bytes) => 2c 01
    0.429111	Path: UPS.Output.PercentLoad, Type: Feature, ReportID:  
0x2c, Offset: 0, Size: 8, Value: 1
    0.433037	Report[get]: (3 bytes) => 20 79 09
    0.433063	Path: UPS.Input.Voltage, Type: Feature, ReportID: 0x20,  
Offset: 0, Size: 16, Value: 2.425e-05
    0.437037	Report[get]: (3 bytes) => 38 f4 01
    0.437063	Path: UPS.Input.Frequency, Type: Feature, ReportID: 0x38,  
Offset: 0, Size: 16, Value: 500

Do you have access to a box that can run the manufacturer-provided  
software for this UPS? It should have a list of measured values, and  
based on the labels, we can figure out what they are referring to.

The problem is that if we multiply everything by 1e7, the  
ConfigVoltage would be 2.4V. Also, the frequency seems to be high by a  
factor of 10.



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