figured correctly..</p>

<p>The <b>Update period</b> corresponds the time interval upon which
    the system makes calls 2 and, if necessary, class 1 requisitions to the
    slave device.</p>

<p>The <b> GI relative period</b> corresponds to the time interval
    upon which the system makes the requisition of one <b>General
        Interrogation</b> to the device and is <b>relative to the update period</b>
    defined beforehand. So, if the update period = 2s and the GI period =
    30, <b>the datasource se