Master Control - Berker

It should always be noticed that all the data of any day between 0:00 and the current time will
not be available after a reset as it is not transferred to the flash data memory before the reset.
This property should especially be taken into account with the short recording periods "Hour"
and "Day" as, in these cases, whole recording periods could be lost if a device reset takes place
without successful saving.
i On programming the device firmware, the entire flash data memory is deleted ad overwritten.
In this case the saved data of the datalogger no longer exists.
This matter should be particularly taken into account, if, for example, after an update of the
ETS plug-in, the device firmware is also automatically updated during a new programming
operation.
Differential calculation:
If the data source is a counter (e.g. electricity meter, people counter, etc.), data recording can
be switched to differential calculation. In so doing, a differential between the last received value
and the last value of the previous period is calculated and stored as a display data value in the
panel. No calculation of minimum, maximum or average values take place. The calculated data
value differentials then, in the case of an electricity meter, directly represent the consumed units
of power within a recording period (e.g. month or year).
To ensure that the differential calculation produces useful display values, only those counter
values should be used as data which are counted in one direction (either increasing or decreasing).
In addition, differential calculation with data values not from counters is usually meaningless
and thus impracticable. Therefore, differential calculation should only be used for data
channels which have "Counter" configured as the object data type.
After a device reset (power failure, programming operation), the differential calculation starts at
a specified starting value. This is required to initialise the differential formation, so that a differential
value can be calculated in the first recording period after a reset. This means that, in addition,
there can be an adjustment to defined basic counter levels - for example after the installation
of a new electricity meter.
The system project planner must enter the starting value in the parameter of the same name in
the ETS plug-in. This means that it is stored statically in the device project planning. A distinction
must be made between two different cases:
If a value is entered in the parameter box (standard value = "0"), the value then evaluates the
last data value of the first time period after the reset directly and then shows the difference to
the starting value in the display diagram (see chapter 4.2.4.10.2. Datalogger display). Alternatively,
the parameter field of the start value in the ETS plug-in can be left empty. In this case, the
panel automatically evaluates the first data value received as the start value. This value does
not appear in the data display. Only the differential values calculated after this
(last value of 1st period last value of 2nd period, etc.) are transferred to the display as display
values.
i With a set cyclic poll of the channel object, only the response telegrams (ValueResponse)
of the data source are used to record the differential data. Additional spontaneous telegrams
(ValueWrite) are not taken into account in a differential evaluation.
e-mail at datalogger:
If the panel is connected to a network via an Ethernet connection and an e-mail mailbox is configured
to send e-mail messages, the data values recorded by a datalogger channel can be
send cyclically by e-mail. In this case, the panel prepares the data in a CSV file and sends it to
a specified recipient in a standard e-mail. Both the e-mail function and the recipient address can
be configured in the ETS plug-in in the parameter group of a datalogger channel.
The e-mail is sent automatically each time the configured recording period has elapsed. The
data forwarded by e-mail thus take only the data values of one recording period into account.
Order-No. 7574 00 1X
Software "...590101"
Functional description
Page 101 of 222