READ?
Starts a new set of measurements, waits for all measurements to complete, and transfers all available
measurements. Sending READ? is similar to sending INITiate followed immediately by FETCh?.
Parameter Typical Return
(none) (none)
Transfer measurements from reading memory:
READ?
Typical Response: -4.98748741E-01,-4.35163427E-01,-4.33118686E-01,-3.48109378E-01
l The FETch? query does not erase measurements from the reading memory. You can send the query
multiple times to retrieve the same data.
l You can store up to 1,000 measurements in the reading memory of the 34460A, 10,000 meas-
urements on the 34461A, 50,000 measurements on the 34465A/70A (without the MEM option), or
2,000,000 measurements on the 34465A/70A (with the MEM option). If reading memory overflows,
new measurements 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 Ques-
tionable 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 are executed: INITiate, MEASure:<function>?, READ?,
*RST, SYSTem:PRESet.
SCPI Programming Reference
206
Keysight Truevolt Series Operating and Service Guide
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