Handbuch-KnxSmartmeter-85A-en-3.odt, 2018-10-04
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Figure 5: Settings „General“ Example 1
The settings in the tab “Measurement” can be seen in Figure 6. It is advisable that in the
parameter “Reference current for limit values (x5A)” the security value is entered with which the
lines at the measurement point of the Smartmeter are protected. In this example the reference
value is therefore adjusted to 35A corresponding to the protection fuse of the house connection.
Therefore a parameter with the value 7 is entered in “Reference current for limit values (x5A)”.
This setting results in a viable range of values for the subsequent indication of current and power
limits.
Since only the measurement of three-phase values is relevant in this example, only these are
released in the settings. Otherwise the default values can be adopted. With the default settings
for the SD card recording, all measured values except the harmonics are recorded on the SD
card. With a parameterized recording interval of “15min” each 15 minutes a record of all
measurements (currents, voltages, powers, energy counter, THDs, frequency, power factors,
current and voltage peaks) on the SD card is done. The measurements are written in CSV
format to a file. At the beginning of each new day a new recording file is generated. Thus, the
data on the SD-card are ordered by day to a certain extent. The csv-files can directly be opened
and processed by a spreadsheet program such as Excel, Openoffice Calc or Gnumeric.
Figure 6: Settings „Measurement“ Example 1
In the next tab “Measurement three-phase” can be parameterized, which three-phase values are
to be transmitted on the bus.
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