BNC 1105 Universal Counter - Manual (Page 123)

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A sequence of ASCII-encoded byte: COMM or DPO.
Note
This value is stored at non-volatile memory, so it will not change after the
counter has been turned off, or after *RST command or save&recall.
:FETCh[[:SCALar]:]?
This command queries the measurement taken by the command :INItiate (or :MEASure
query or :READ?).
This command is the generic form of the Commands :FETCh?. Skipping the
and the will instruct the counter to use the function
specified by the last command :CONFigure, :MEASure, :READ, or :FETCh. When
[:SCALar]: is specified, the counter returns the specified result if it is
consistent with the current measurement function or it can be derived from the
current measurement function. The following table shows what functions can be
derived from what functions.
Frequency ↔ Period
Voltage Peaks ↔ Voltage MAXimum
Voltage Peaks ↔ Voltage Minimum
Voltage Peaks ↔ Voltage CENTer
Voltage Maximum ↔ Voltage Peaks
Voltage Minimum ↔ Voltage Peaks
Voltage CENTer ↔ Voltage Peaks
For more information about options, please refer to the table in
Chapter 5.4.
Return
Results will be formatted according to :FORMat[:DATA] ASCii|REAL
specification.
If choosing the ASCii format, numeric data is transferred as ASCII bytes in
format. The number of significant digits ranges from 1 to 5
depending on the resolution.
If there is no valid result, Not a Number 9.91E37 is returned and error -230
is generated.
When an automatically armed Totalize measurement is in progress, sending
a :FETCh? Command will cause error -221 and Not a Number 9.91E37 will be
returned. To avoid this error, use :ABORt to terminate the measurement