3WL air circuit breakers
3.1 Introduction and overview
3WL/3VL circuit breakers with communication capability - PROFIBUS
32
System Manual, 03/2011, A5E01051353-02
Data point groups
The table below provides an overview of the internal CubicleBUS nodes and their assigned
data point groups (combination of several data points). The table below shows which data
points from the data library are generated by which CubicleBUS module:
Table 3- 2
Assignment of data points to CubicleBUS modules
CubicleBUS nodes
Data point group
Data points with the same source
ETU from
ETU45B
BSS
COM15
Metering function
PLUS
Protection parameter set A
✓
Protection parameter set B
(not for ETU45B)
✓
Extended protection parameters
✓
Parameters for threshold values
✓
PROFIBUS communication parameters
✓
Parameters for setting measured values
✓
Data for device identification
✓
✓
Switch position information
✓
Status information (switch on/off, spring
energy store, etc.)
✓
Alarms
✓
Tripping operations
✓
✓
Threshold value messages
✓
Maintenance information
✓
✓
Temperature in circuit breaker
✓
Temperature in the control cabinet
✓
3-phase currents
✓
Current in N-conductor, ground-fault
current; depending on equipment
✓
3-phase voltages
✓
Power P, Q, S, energy
✓
Cos φ
✓
Frequency, total harmonic distortion, form
factor, peak factor
✓
Harmonic analysis
✓
Waveform buffer
✓
Logbook for events and tripping operations
✓
System time
✓