HP 54520 Series - Page 143

Define Measure Menu
Waveform Compare Menu
Messages
PASS A channel or function waveform is contained in the memory pair.
FAIL Channel or function waveform is not contained in the memory
pair and within the allowance value. The test has failed or the memory
pair contents are reversed (upper waveform in memory 2 or 4 and lower
waveforms in memory 1 or 3).
Er 0 Invalid data in the channel; Either the Clear display was pressed or
a setting (like s/div or V/div) was changed to invalidate the data. The
test is not performed.
Er 1 Either the channel or function or the compare waveform memory
is off. The test is not performed.
Er 2 Versus mode is not a valid compare mode.
Only one measurement test routine may be turned on at one time. If the
measurement limit test is on, the message "limit test on: cannot turn on" is
displayed. If the compare test is on, the measurement limit test selection
causes the message “comp test on: cannot turn on" to be displayed.
If an attempt is made to turn on a second test over the HP-IB, a message is
displayed stating the command is ok but that the settings conflict.