CET PMC-690, User Manual

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CET Electric Technology
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Flagging Status This register indicates if a particular type of data has been flagged with a bit value of
1 meaning flagged and 0 meaning not flagged . The following table illustrates the
details of the Flagging Status register for real-time data.
Bit Description Bit Description
B0
Basic Measurement
Dip B8
Pst.
Dip
B1 Swell B9 Swell
B2 Interruption B10 Interruption
B3 Over Current Limit B11 Reserved
B4
Freq.
Dip B12
Plt.
Dip
B5 Swell B13 Swell
B6 Interruption B14 Interruption
B7 Reserved B15 Reserved
Table 4-19 Flagging Status Register (0080)
Statistical Log For any Statistical Log (such as SDR Log, Max. Log, Min. Log and/or EN50160 Log), its
log entry will be discarded and will not be included in the statistical evaluation if any
data within the log entry has been Flagged while the bit representing the particular
Log type in the Flagging Setup register is enabled (set to 1).
Real-time Data Real-time data via Modbus communications will only refresh after the Flagging Status
register has been read if Bit 15 of the Flagging Setup register is enabled (set to 1) and
if Flagging is active. Conversely, real-time data via Modbus communications will
automatically refresh if Bit 15 of the Flagging Setup register is disabled (set to 0) so
there is no need to read the Flagging Status register before reading the real-time data.
Real-time data includes Frequency, Voltage, Current, Unbalance, Harmonics and
Interharmonics measurements.
4.3.14 EN50160 Compliance Report
The EN50160 Standard defines the Voltage Characteristics of Electricity Supplied by Public Distribution
Systems . It provides the limits within which any customer can expect voltage characteristics to remain.
For a complete definition of the non-conformity level for each of the following EN50160 parameters,
please refer to the EN50160 Standard document.
The PMC-690 can measure, summarize data and statistics relevant data in accordance with the EN50160
standard. In addition, the device is capable of creating a report per week for the following PQ
parameters and the report can be stored for one year.

Power Frequency, including Maximum and Minimum

Supply Voltage Variations, including Maximum and Minimum

Flicker, including Max./Min. and CP95

Voltage Unbalance, including Max./Min. and CP95

Harmonic Voltage, including Max./Min., Avg. and CP95

Mains Signal Voltage, including Max./Min. and CP95

Rapid Voltage Changes

Swells and Dips, statistic parameters classified according to characteristic voltage and duration

Interruptions, statistics parameters classified according to duration

Transients
The programming of EN50160 Log only supports communications, please refer to Section 5.8.12 to set
parameters for each item. EN50160 Report can be accessed through the Front Panel or via