Data library
8.7 Formats
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
271
Table 8- 68 Format (308) "Threshold alarms"
Byte Bit Meaning
1 0 cos φ capacitive
1 1 cos φ inductive
1 2 THD current
1 3 THD voltage
1 4 Peak factor
1 5 Form factor
1 6 Active power in normal direction
1 7 Active power in reverse direction
2 0 Long-time mean value of active power
2 1 Long-time mean value of apparent power
2 2 Long-time mean value of reactive power
2 3 Reactive power in normal direction
2 4 Reactive power in reverse direction
2 5 Apparent power
2 6 Overfrequency
2 7 Underfrequency
3 0 Overcurrent
3 1 Overcurrent ground fault
3 2 Overcurrent N-conductor
3 3 Phase unbalance current
3 4 Long-term mean value of current
3 5 Undervoltage
3 6 Phase unbalance voltage
3 7 Overvoltage
The table below shows the format (309) "Harmonic analysis". To calculate, the value must
be multiplied by the signed exponent.
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