Units; Function Classes; Function Classes Of The Data Points - Siemens SENTRON VL Series System Manual

8.4

Units

The measured values have the following measuring units unless otherwise indicated in the
tables:
Current
Voltage
Power
Power
Reactive power
Energy
Reactive energy
Energy
Reactive energy
Temperature
THD/form factor/peak factor
Frequency
Delay time
This also applies to the min./max. values.
8.5

Function classes

8.5.1

Function classes of the data points

In this section, the data points are combined into function classes. Function classes are, for
example, data for identification, device parameters, or measured values. This subdivision
quickly enables users to find the desired data point and its properties.
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
Measured value Measuring unit
A Ampere
V Volts
kW kilowatt
kVA kilovolt ampere
kVA kilovolt ampere (reactive)
r
kWh kilowatt/hour
kVArh kilovolt ampere (reactive)/hour
MWh megawatt/hour
MVA h Megavolt ampere (reactive)/hour
r
°C Degrees Celsius
% Percent
Hz Hertz
s Seconds
Data library
8.4 Units
Name
177