This class represents an error in the system. A component might trigger this alarm by switching the signal from 0 to 1. Therefore, the signal is binary.
A datapoint annotated with this class is counting events. Counters usually are a monotonous signal counting events inside a component (e.g. amount of rain, cumulative energy usage). Some counters do reset at a specified maximum value.
This class denotes a sensor measuring the CO_2 concentration (usually in ppm). The CO_2 concentration is an indicator for air quality.
The heat flow between different circuits (e.g. within AC units) are annotated with this class.
The datapoint labeled with this class represents messages of components. These messages can represent binary modes (e.g. on/off, or summer/winter mode) or multistate modes (modeA/modeB/modeC). These datapoints are digital.
The current power consumption of a component is annotated with this class.
This datapoint denotes pressure sensors (e.g. Air pressure from weather stations or pressure of liquids).
Revolutions or frequencies of rotors or pumps are annotated with this class.
A datapoint measuring the relative humidity in the air. The value ranges from 0 to 100 percent.
Setpoint for operation
This datapoint is a user defined set point for an operational mode. For example, a user can switch a component on or off.
Setpoint in percent
A user defined set point similar to Setpoint for operation for a percental variable (e.g. valve position).
Setpoint of temperature
This datapoint is similar to Setpoint for operation. It denotes the output of a controller for temperature. Inside offices the temperature can be regulated (within constraints) to maximize the user comfort.
Setpoint of temperature offset
This datapoint is similar to Setpoint of temperature and also annotates a user defined setpoint for temperature. However, this datapoint is regulated by a device which only allows small adjustments to the temperature in the comfortable range.
Temperature of gaseous fluid
This datapoint shows the temperature of a gas (e.g. air, …). It is usually annotated in Degree Celsius, Degree Fahrenheit or Kelvin.
Temperature of liquid fluid
This datapoint shows the temperature of a liquid (e.g. water, …). It is usually annotated in Degree Celsius, Degree Fahrenheit or Kelvin.
Volume flow for gaseous fluid
This datapoint denotes the differential flow of a gas (e.g. air inside AC units).
Volume flow for liquid fluid
This datapoint is similar to Volume flow for gaseous fluid. However, this datapoint annotates the differential flow of a liquid (e.g. water).
Volatile organic compound
Volatile organic compounds (CO_2, …) influence the air quality. This datapoint shows a combined concentration of these compounds.
This datapoint indicates the position of a valve. Its values ranges from 0 to 100 and show the current close/open status of the underlying valve.
Electric work counter
This datapoint describes the electrical work of a component, I.e. the cumulative electrical power over time.
Working set point in percent
This datapoint denotes a working set point (i.e. the current target of a control algorithm) for percentual measurements, e.g. valve positions). The control algorithm tries to match the actual valve position as close as possible to this working set point.
Working set point for temperature
This datapoint is similar to Working set point in percent. However, this datapoint specifies target temperatures for a control algorithm. Its unit is either Degree Celsius, Degree Fahrenheit or Kelvin.