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ANNEX II. FURTHER EXAMPLES
With the aim of making the comprehension of how KES works simpler and of presenting the
multiple parameterizable communication objects in their context, a few more examples will be
presented next. The intention is that they cover exhaustively enough most of the doubts that may
rise during the initial contact with the device. Of course, these examples are complemented with
those already included in
Annex I. Time Management
.
Note
:
A few seconds of sampling are always needed by KES before most of the objects and
variables are updated. If for testing / simulation purposes several hour changes are forced with less
than 5 seconds between each and the next one, KES may report incorrect or null values through the
objects sent to the bus (such as “Last hour Energy Consumption”).
Example 1: total consumption
The simplest usage of KES Energy Saver consists in destining it to calculate total
consumptions, so that they can be contrasted with those from the electric bill. For that, it is
enough with parameterizing the following:
General screen
: only one tariff, with a cost of 15 cents per kWh, and a CO
2
ratio of
50. Voltage, as corresponding to the system. Power factor, 100. Enable the corresponding
channel. All cyclic sendings, left disabled.
Active Energy screen
: values 5, 0 and 0 for section
“Estimated energy
consumption
”. Values 5, 0 and 0 for section “Estimated cost”. Parameters “Daily energy
consumption
”, “Daily cost”, “Monthly energy consumption” and “Monthly cost”, enabled. All
other parameters, disabled.
Active Power screen
: values 5, 0 and 0 for section
“Instantaneous Power” and 10, 0
and 0 for
“Hourly Peak Power”. All other parameters, disabled.
In such circumstances, the only functions KES will develop are:
1) Sending, every midnight, the objects
“Daily energy consumption” and “Daily cost”,
expressed in kWh and monetary units, respectively.
