R? [<max_readings>]
Reads and erases all measurements from the reading memory up to the specified <max_readings>. The
measurements are read and erased from the reading memory starting with the oldest measurement first.
Parameter Typical Return
34460A: 1 to
1,000 readings
34461A: 1 to
10,000
readings
Default is all
readings in
memory
#247-4.98748741E-01,-4.35163427E-01,-7.41859188E-01
The "#2" means that the next 2 digits indicate how many characters will be in the returned memory
string. These two digits are the "47" after the "#2". Therefore, the remainder of the string is 47
digits long:
-4.98748741E-01,-4.35163427E-01,-7.41859188E-01
Read and remove the three oldest readings:
R? 3
l The R? and DATA:REMove? queries allow you to periodically remove measurements from the reading memory that
would normally cause the reading memory to overflow.
l You can store up to 1,000 measurements in the reading memory of the 34460A or 10,000 measurements on the
34461A. If reading memory overflows, new measurements will overwrite the oldest measurements stored; the
most recent measurements are always preserved. No error is generated, but the Reading Mem Ovfl bit (bit 14) is
set in the Questionable Data Register's condition register (see Status System Introduction).
l The instrument clears all measurements from reading memory when the measurement configuration changes, or
when any of these commands is executed:
INITiate
MEASure:<function>?
READ?
*RST
SYSTem:PRESet
Agilent Truevolt Series DMM Operating and Service Guide 111
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