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6) If the instant power goes to 1.25 kW, the inverted value (
a “0”) will be sent through “[Cx]
Low consumption indicator
”. If it goes then under 1 kW, one “1” will be sent through the
same object.
7)
Finally, if the values “3.0” and “4.0” are sent through objects “[Cx] Lower limit” and “[Cx]
Upper limit
” respectively, it will become necessary that the power goes over 3.20 kW
before a “0” is sent through “[Cx] Low consumption indicator”, and that it goes over 4 kW
before a “1” is sent through “[Cx] Over-consumption alarm”.
Note
:
Special care must be taken when writing to objects
“[Cx] Upper limit” and “[Cx] Lower limit”.
Values which are too close (enough to have a difference smaller than the defined margin bands) or
that do not satisfy the condition L
upper
> L
lower
will cause behaviours with no logical sense.
Example 8: global test
This example, eminently practical, pretends simulating in only a few minutes how KES would
work while time passes (several hours, several days and several weeks). At the end of the
example a small graph has been included to show the hour, day and week changes that are
being simulated.
To
begin with, the following ETS parameterization is proposed for KES:
General screen
: every cyclic sending and security sending enabled with the most
frequent option available (every hour or every day, depending on the case). Only one tariff,
with a cost of 5000 (cents of the local currency) per kWh and a CO
2
ratio of 50. As the voltage,
the one corresponding to the system. And the power factor, 100.
Active Energy screen
: values 5, 30 and 0 for section
“Estimated energy consumption”.
Values 5, 30 and 0 for section
“Estimated cost”. All the other parameters enabled
.
Active Power screen
: values 5, 30 and 0 for section
“Instant power”. Values 10, 30 and
0 for section Hourly peak power. All the other parameters, enabled.
After downloading the parameters, the internal clock should be set to 9:00h am of the first
Monday of the current month.
1) Connect, for example, a 2000 W load to the corresponding channel
:
