6 – Language Dictionary
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STATus:OPERation:NTRSTATus:OPERation:PTR
These commands set or read the value of the Operation NTR (Negative-Transition) and PTR (Positive-
Transition) registers. These registers serve as polarity filters between the Operation Enable and
Operation Event registers to cause the following actions:
KWhen a bit in the Operation NTR register is set to 1, then a 1-to-0 transition of the corresponding bit
in the Operation Condition register causes that bit in the Operation Event register to be set.
KWhen a bit of the Operation PTR register is set to 1, then a 0-to-1 transition of the corresponding bit
in the Operation Condition register causes that bit in the Operation Event register to be set.
KIf the same bits in both NTR and PTR registers are set to 1, then any transition of that bit at the
Operation Condition register sets the corresponding bit in the Operation Event register.
KIf the same bits in both NTR and PTR registers are set to 0, then no transition of that bit at the
Operation Condition register can set the corresponding bit in the Operation Event register.
Command Syntax STATus:OPERtion:NTRansition<NRf>, (@<channel list>)
STATus:OPERtion:PTRansition<NRf>, (@<channel list>)
Parameters 0 to 32767
Preset Value NTR register = 0; PTR register = 32767
Examples STAT:OPER:NTR 32,(@1) STAT:OPER:PTR 1312,(@1)
Query Syntax STAT:OPER:NTR? (@<channel list>)
STAT:OPER:PTR? (@<channel list>)
Returned Parameters <NR1> (register value)
STATus:PRESet
This command sets all defined bits in the Status Subsystem PTR registers and clears all bits in the
subsytem NTR and Enable registers.
Command Syntax STATus:PRESet
Parameters None
Examples STAT:PRES STATUS:PRESET
STATus:QUEStionable[:EVENt]?
This query returns the value of the Questionable Event register. The Event register is a read-only register
that stores (latches) all events that are passed by the Questionable NTR and/or PTR filter. Reading the
Questionable Event register clears it.
Query Syntax STATus:QUEStionable[:EVENt]? (@<channel list>)
Parameters None
Examples STAT:QUES? (@1)
Returned Parameters <NR1> (register value)
Related Commands *CLS STAT:QUES:ENAB STAT:QUES:NTR STAT:QUES:PTR
Table 6-5. Bit Configuration of Questionable Status Registers
Bit Position 15 14 13 12 11 10 9-5 4 3 2 1 0
Bit Name not
used
Meas
Ovld
not
used
OSC not
used
UNR not
used
OT not
used
PCLR OV- OV+
Bit Value 16384 4096 1024 16 2 1
Meas Ovld = The output measurement exceeded the
capability of the range
OSC = The oscillation protection has tripped
UNR = The output is unregulated
OT = The overtemperature protection has tripped
PCLR = No communication with the selected output
OV- = The negative overvoltage protection has tr ipped
OV+ = The positive overvoltage protection has tripped