Elgas DATCOM, Operating Instructions Manual

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11
Function Description
162
The device allows for setting the parameters needed for the device to be put into operation after
installation directly from the device keypad, i.e. without the need to use a computer. The
description of the procedure is provided in paragraph 6.7
The device can be fully parametrized using the supplied utility SW [42], [43] for PC. In addition to
setting up the device, the software also allows reading, viewing, archiving and printing of both
actual values and the archives contents. The parameterization procedure using the utility SW is
described in [38].
11.5 Other Features of the Device
11.5.1 Summer/Winter Time (DST)
The time change function (summer/winter time) is implemented in the device. This function can
be activated/deactivated with the utility SW. When this function is activated, the device
automatically changes the time based on the region where the device is used (Europe or USA).
At the same time, it is necessary to set a deviation from the central time (GMT) for correct
operation. The archives of the device then distinguish whether the record was taken in summer or
winter time.
11.5.2 Time Synchronization
The device is equipped with a time synchronization function that allows only the administrator to
correct the time within a time deviation of +/- 10 minutes without recording the adjustment in the
setup archive and without generating the warning message W38 in the device status
24
).
Remark for CTR communication protocol:
If the time deviation is greater than 60 s and less than 2 hours, then the time correction is
enabled, but it is recorded in the status archive. If an attempt is made to change the time
by more than 2 hours, then this correction is not enabled and an alert is generated.
In the device parameterization, if the device is equipped with a modem, it is possible to set
automatic time synchronization using NTP protocol via the GPRS network or using the ETTC
protocol via GSM CSD call. The time is synchronized automatically with a 20-day period, or with a
24-hour in the case of failure. If the synchronization is not successfully completed by 25th day, an
E26 error is triggered and recorded in the status archive (
Table 14
). The amount of the time
deviation detected during synchronization is always evaluated with respect to the data storage
frequency so that the archives are not corrupted during synchronization.
11.5.3 Tariff Counters
Up to four tariff counters are available in the device that allow for volume calculating according to
a pre-set time schedule. There are two separate schedules (Tariff Schedule 1 and Tariff Schedule
2) that can be configured independently and only one can be active at a given time. In these
schedules, the tariffs can be assigned to specific time slots in the days, and it is also possible to
define whether the selected day is a working day, Saturday or Sunday (holiday).
Each schedule has its own identification number and the time of activation can be set separately
for each schedule.
11.6 Protection against change of Metrological Parameters
24 ) This data is valid for the OEM ELGAS s.r.o. device version.