librenms-librenms/includes/discovery/processors/screenos.inc.php

<?php

if ($device['os'] == 'screenos' && dbFetchCell("SELECT COUNT(*) FROM `processors` WHERE `device_id` = ? AND `processor_type` != 'screenos'", array($device['device_id'])) == '0') {
    // .1.3.6.1.4.1.3224.16.1.3.0 Cpu Last 5 Minutes
    // discover_processor(&$valid, $device, $oid, $index, $type, $descr, $precision = "1", $current = NULL, $entPhysicalIndex = NULL, $hrDeviceIndex = NULL)
    echo 'ScreenOS ';

    $percent = snmp_get($device, '.1.3.6.1.4.1.3224.16.1.3.0', '-OvQ');

    if (is_numeric($percent)) {
        discover_processor($valid['processor'], $device, '.1.3.6.1.4.1.3224.16.1.3.0', '1', 'screenos', 'Processor', '1', $percent, null, null);
    }
}