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This bit (bit 7) is the logical OR of all the Operational Event register bits that are enabled by the Status Operation Enable register. Command Syntax STATus:OPERation:ENABle Parameters 0 to 32727 Suffix (None) Default Value 0 Examples STAT:OPER:ENAB 1312 STAT:OPER:ENAB 1 STATUS:OPERATION:ENABLE? Query Syntax STATus:OPERation:ENABle? Returned Parameters (Register value) Related Commands STAT:OPER:EVEN STAT:OPER NTR STAT:OPER 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: • When 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. • When 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. • If 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. • If 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. Note Setting a bit in the value of the PTR or NTR filter can of itself generate positive or negative events in the corresponding Operation Event register. Command Syntax STATus:OPERtion:NTRansition STATus:OPERtion:PTRansition Parameters 0 to 32727 Suffix (None) Default Value 0 Examples STAT:OPER:NTR 32 STAT:OPER:PTR 1312 Query Syntax STAT:OPER:NTR? STAT:OPER:PTR? Returned Parameters (Register value) Related Commands STAT:OPER:ENAB 42 Language Dictionary Status Questionable Registers Bit Configuration of Questionable Registers Bit Position 15-11 10 9 8 7 6 5 4 3 2 1 0 Condition NU UNR RI NU NU NU NU OT NU NU OC OV Bit Weight 1024 512 256 128 64 32 16 8 4 2 1 NU = (Not used); OC = Overcurrent protection circuit has tripped. OT = Overtemperature status condition exists; OV = Overvoltage protection circuit has tripped. RI = Remote inhibit is active; UNR = Power supply output is unregulated. Note: See "Chapter 4 - Status Reporting" for more explanation of these registers. STAT:QUES? This query returns the value of the Questionable Event register. The Event register is a read-only register which holds (latches) all events that are passed by the Questionable NTR and/or PTR filter. Reading the Questionable Event register clears it. Query Syntax Parameters Returned Parameters Examples Related Commands STATus:QUEStionable[:EVENt]? (None) (Register Value) STAT:QUES? STATUS:QUESTIONABLE:EVENT? *CLS STAT:QUES:ENAB STAT:QUES:NTR STAT:QUES:PTR STAT:QUES:COND? This query returns the value of the Questionable Condition register. That is a read-only register which holds the real-time (unlatched) questionable status of the power supply. Query Syntax STATus:QUEStionable:CONDition? Parameters (None) Examples STAT:QUES:COND? STATUS:QUESTIONABLE:CONDITION? Returned Parameters (Register value) Related Commands (None) STAT:QUES:ENAB This command and its query set and read the value of the Questionable Enable register. This register is a mask for enabling specific bits from the Questionable Event register to set the questionable summary bit (QUES) of the Status Byte register. This bit (bit 3) is the logical OR of all the Questionable Event register bits that are enabled by the Questionable Status Enable register. Command Syntax STATus:QUEStionable:ENABle Parameters 0 to 32727 Suffix (None) Default Value 0 Examples STAT:QUES:ENAB 20 STAT:QUES:ENAB 16 Query Syntax STATus:QUEStionable:ENABle? Returned Parameters (Register value) Related Commands STAT:QUES? Language Dictionary 43 STAT:QUES NTR STAT:QUES PTR These commands allow you to set or read the value of the Questionable NTR (Negative-Transition) and PTR (Positive- Transistion) registers. These registers serve as polarity filters between the Questionable Enable and Questionable Event registers to cause the following actions: • When a bit of the Questionable NTR register is set to 1, then a 1-to-0 transition of the corresponding bit of the Questionable Condition register causes that bit in the Questionable Event register to be set. • When a bit of the Questionable 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. • 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. • If the same bits in both NTR and PTR registers are se...

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