Specifications

STAT:OPER?
This query returns the value of the Status Operation Event register. The Event register is a read-only
register, which holds (latches) all operation events that are set by users. Reading the Operation Event
register does not clear it.
Query Syntax
Parameters
Returned Parameters
Examples
Related Commands
STATus:OPERation[:EVENt]? <channel>
<channel>: 1 – 31, channel number
<NR1> Register Decimal Value
STAT:OPER? 1
*RST
Bit Configuration of Questionable Registers:
Bit Position 7 6 5 4 3 2 1 0
Bit Name
LSC LSV OUT OT CC CV OC OV
Bit Weight 128 64 32 16 8 4 2 1
Bit Position 15 14 13 12 11 10 9 8
Bit Name
NU NU TRAC UV ORO UNR TTL POL
Bit Weight 32768 16384 8192 4096 2048 1024 512 256
OV = Over-voltage protection circuit has tripped. OC = Over-current protection circuit has tripped.
CV = The power supply is in constant voltage mode. CC = The power supply is in constant current
mode. OT = Over-temperature status condition exists. OUT = Power supply output states. LSV =
The voltage list operation. LSC = The current list operation. POL = The relay operation is on
negative operation. TTL = TTL shut down is occurred. UNR = Power supply output is unregulated.
ORO: Output Relay Open = 1, Output Relay Close = 0. UV: Under Voltage Protection: protection
was triggered. TRAC: Tracking operation enabled=1. NU = Not used.
STAT:QUES?
This command returns the value of the Questionable Event register. The Event register is a read-only
register, which holds (latches) all events that occurred. Reading the Questionable Event register does not
clear it.
Query Syntax
Parameters
Returned Parameters
Examples
Related Commands
STATus:QUEStionable[:EVENt]? <channel>
<channel>: 1 – 31, channel number
<NR1> Register Decimal Value
STAT:QUES:EVEN? 1
*RST
STAT:QUES:ENAB
This command sets or reads 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 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
Parameters
Suffix
Default Value
Example
Query Syntax
Returned Parameters
Related Commands
STATus:QUEStionable:ENABle <NRf>
0 to 32727
(None)
0
STAT:QUES:ENAB 18
STATus:QUEStionable:ENABle?
<NR1> Register Decimal Value
STAT:QUES?
6-30