l For example, to enable bit 2 (decimal value = 4), bit 4 (decimal value = 16), the corresponding
decimal value would be 20 (4 + 16).
l *CLS does not clear the enable register, but does clear the event register.
STATus:QUEStionable<1|2>:NTRansition <value>
STATus:QUEStionable<1|2>:NTRansition?
STATus:QUEStionable<1|2>:PTRansition <value>
STATus:QUEStionable<1|2>:PTRansition?
Sets and queries the value of the NTR (Negative-Transition) and PTR (Positive-Transition) registers.
These registers serve as a polarity filter between the Questionable Condition and Questionable Event
registers.
When a bit in the NTR register is set to 1, then a 1-to-0 transition of the corresponding bit in the
Questionable Condition register causes that bit in the Questionable Event register to be set.
When a bit in the PTR register is set to 1, then a 0-to-1 transition of the corresponding bit in the
Questionable Condition register causes that bit in the Questionable Event register to be set.
STATus:PRESet sets all bits in the PTR registers and clears all bits in the NTR registers.
Parameter Typical Return
A decimal value corresponding to the binary-
weighted sum of the register's bits.
<bitvalue>
Enable bit3 and 4 in the questionable NTR register #1: STAT:QUES:NTR 24
Enable bit3 and 4 in the questionable PTR register #1: STAT:QUES:PTR 24
l If the same bits in both NTR and PTR registers are set to 1, then any transition of that bit at the
Questionable Condition register sets the corresponding bit in the Questionable Event register.
l If the same bits in both NTR and PTR registers are set to 0, then no transition of that bit at the Ques-
tionable Condition register can set the corresponding bit in the Questionable Event register.
l The value returned is the binary-weighted sum of all bits set in the register.
Keysight N6900/N7900 Series Operating and Service Guide 268
6 SCPI Programming Reference
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