Agilent Technologies U2000 Series Manual page 274

10 SYSTem Subsystem
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Lists not same length
This occurs when SENSe:CORRection:CSET[2]:STATe is set to ON and the frequency
and calibration/offset lists do not correspond in length.
Data corrupt or stale
This occurs when a FETC? is attempted and either a reset has been received or the
power sensor state has changed such that the current measurement is invalidated
(for example, a change of frequency setting or triggering conditions).
Data questionable;CAL ERROR
Power sensor calibration failed.
Data questionable;ZERO ERROR
Power sensor zeroing failed. The most likely cause is attempting to zero when some
power signal is being applied to the power sensor.
System error;Sensor non-volatile memory Read Failed - critical data not
found or unreadable
This indicates a failure with your U2000 Series USB power sensors. Refer to
your power sensor manual for details on returning it for repair.
Out of memory
The power sensor required more memory than was available to run
an internal operation.
Self-test Failed;
The -330, "Self-test Failed" errors indicate that you have a problem
with your power sensor. Refer to Contacting Agilent
Technologies for details of what to do with your faulty
power sensor.
Self-test Failed;Measurement Channel Fault
Self-test Failed;ROM Check Failed
Self-test Failed;RAM Check Failed
Queue overflow
The error queue is full and another error has occurred which could not be recorded.
Query INTERRUPTED
A command was received which sends data to the output buffer, but the output
buffer contained data from a previous command (the previous data is not
overwritten). The output buffer is cleared when power has been off, or after *RST
(reset) command has been executed.
Query UNTERMINATED
The power sensor was addressed to talk (that is, to send data over the interface) but
a command has not been received which sends data to the output buffer. For
example you may have executed a CONFigure command (which does not generate
data) and then attempted to read data from the remote interface.
U2000 Series Programming Guide