This object sets a seconds time-out timer for capturing histogram data. This attribute is used to automatically clear the Enable attribute when the timeout expires. If the value of this attribute is zero, the CM will collect data until the value is changed, stopped, or until any dwell counter approaches its 32 bit rollover value. If the Timeout attribute is re-written while Enable is 'true', the CM will restart the timeout timer with the new Timeout value and continue collecting data. When the timeout expires the 'docsPnmCmDsHistEnable' object will be set to 'false' and the capture will stop. When this happens, the data collected up to this point will be saved in the the file defined by the 'docsPnmCmDsHistFileName', and the value of 'docsPnmCmDsHistMeasStatus' will be set to 'sampleReady'. Setting this value does not start a capture. Captures can only be started by setting the 'docsPnmCmDsHistEnable' object. If this object is written while the 'docsPnmCmDsHistEnable' object is 'true', the timer is restarted. If this object is set to a value of 'zero', there is no timeout and the collection of data will continue indefinitely. This object returns the value that it was last set with.