PROTOCOL COMMUNICATION
PT10789220
pag. 17/22
Power factor (3-phase) (block 3.5)
Format : WORD
Measurement unit : //
Values : multiplied by 100
Example : 0.98 => 98 => 0x00 62
Power factor sector (3-phase) (block 3.6)
Format : WORD
Measurement unit : //
Values : 0x00 => PF is 1
0x01 => PF is inductive
0x02 => PF is capacitive
Frequency (block 3.7)
Format : WORD
Measurement unit : tenth of Hz
Example : 50 Hz => 500 => 0x01 f4
Average power (block 3.8)
This is the power calculated with the shifting average algorithm. It is updated each minute.
Format : DWORD
Measurement unit : it depends on the type of the selected power and so it can be W, var o VA
with the same restrictions due to the product KTV*KTA
Peak maximum demand (block 3.9 / 4.1)
This is the power obtained as the maximum of the average powers and it is updated every minute.
Format : DWORD
Measurement unit : it depends on the type of the selected power and so it can be W, var o VA with the
same restrictions due to the product KTV*KTA
BLOCK 4
Average power pointer (block 4.2)
It gives an indication of the current minute in the time interval and its range is, obviously, between 0 and the (average
time – 1)
Format : WORD
Measurement unit : //
Example : average time = 15 minutes
counter = 10 means that the current minute is the 11th
Active power phase 1 / 2 / 3 (block 4.3 / 4.4 / 4.5)
Same as block 2.4
Active power phase 1 / 2 /3 sign (block 4.6 / 4.7 / 4.8)
Same as block 2.7
Reactive power phase 1 (block 4.9)
Same as block 2.5
Reactive power phase 2 (block 4.10 / 5.1)
Same as block 2.5
To Next Page
Loading...
