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Chapter 5 Command Reference
Event Time Stamping (59551A Only)
Operating and Programming Guide 5-97
Processing Memory Overflows ____________________________
59551A
This query returns an overflow count for each of the three Time Tag inputs.
An “overflow count” occurs after 256 time stamps have been recorded. When
any additional events are detected at the input, the overflow count increments.
If memory management protocol has been set to “FIRST,” the first 256 time
stamps are recorded. The overflow count indicates the number of time stamps
which followed the last recorded stamp, and which were discarded.
If memory management protocol has been set to “LAST,” the most recent
256 time stamps are recorded. The overflow count indicates the number of
stamps which were collected prior to the first recorded stamp, and which were
overwritten.
Response
Returns three comma-separated floating-point numbers corresponding to the
overflow count of each of the three inputs: 1, 2, 3.
Context Dependencies
:SYSTem:PRESet clears the time stamp measurement buffers and overflow
counts.
Time stamps are not collected until after the Receiver has completed its
powerup and has reached initial GPS lock.
:SENSe:DATA:MEMory:OVERflow:COUNt?
RESPONSE FORMAT
Returns an overflow count for each of the three Time Tag inputs.
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