Carlo Gavazzi WM4-96 - Manual (Page 32)

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Programming
Energy meters
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Display page
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updates its value at first after 15 minutes and afterwards
every minute generating a window whose width corre-
sponds to “15 minutes” and shifts by units of 1 minute.
On the following page you can see the diagram that shows
the two operating methods.
SYNCHRONIZATION OF THE FIXED OR FLOAT CALCULATION
The synchronization of the FIXED or FLOAT calculation can
be carried out in three different ways:
• without DIGITAL INPUTS and RS232+RTC modules:
the reset and the start of the synchronization is carried out
when the instrument is switched on;
• with the DIGITAL INPUTS module installed:
the synchronization begins when the A3 and C3 digital
input modules change state (from ON to OFF or from OFF
to ON). Any following change of state will make the syn-
chronization reset and start all over again;
• with the RS232+RTC module: the synchronization begins
at the exact hour that follows the “switch on” of the instru-
ment (E.g.: if WM4-96 is switched on at 10:25, the syn-
chronization will begin at 11:00).
In case both modules are installed (that is digital
inputs and RS232+RTC) the priority will be given to
the digital inputs.