16
CIRWATT B 101-102
Instruction Manual
The following events are registered:
Start
Power supply error
Time change
Software Update
Parameter modification
Intruder detection Start
Intruder detection End
Neutral current alarm
2�21 - LOAD CURVE (OPTIONAL)
The energy meter can have an adjustable load curve (usually between 15 and 60 minutes), where the
measured energies are recorded. The default recording period is 60 minutes.
The energy meter records and stores 6 energy records (in the case of active and reactive energy meas-
urements) in the Wh or Varh absolute form for a total of 10,000 records.
Imported Active Energy (non-vectorial, only magnitude) +A.
Exported Active Energy (non-vectorial, only magnitude) –A (optional, depending on the version).
Quadrant I Reactive Energy R (QI) (optional, depending on the version).
Quadrant II Reactive Energy R (QII) (optional, depending on the version).
Quadrant III Reactive Energy R (QIII) (optional, depending on the version).
Quadrant IV Reactive Energy R (QIV) (optional, depending on the version).
Date/time.
The default recording period of the load curve is 60 minutes. The load curve has no information gaps.
Therefore, any periods with no measurements can be filled in with empty records.
2�22 - DAYLIGHT SAVING TIME
The meter – analyser automatically changes the official time. If the device is without power at the time
of the change, the change will take place when power is restored and the device is initialised.
The parameters that define this change have two different formats: one of them is generic, such that
the time is updated annually automatically; the other relies on the parameters included in the specific
message of the communications protocol. The formats are:
Enabled:
Generic format independent of the year, with month, day, time, delay or pre-set time
change, as per the applicable law (last Sunday of March, and last Sunday of October)
Disabled:
Format that specifies year, month, day, time, delay or time change.
The parameters for changing the official time, regardless of the format in which they are programmed,
are automatically updated at the beginning of the year, based on the generic format. If the message
specified in the communications protocol for updating the official time change is received, the format
will be modified as laid out in this message.
