A device 'startup' feature delay time,
or zero if none, used by system administrators of this device.
Usage: The time delay after last 'startup' trigger event
(eg, 'xcmHrDevCalendarCommandRequest' or local user action)
before the 'startup' cycle will begin (to power 'readyMode'
in 'xcmHrDevInfoConditions' and 'running' in 'hrDeviceStatus').