Keithley 2231A-30-3 - Page 67

Section 5: SCPI command reference Model 2231A Triple-channel DC Power Supply Reference Manual
5-30 077100401/September 2014
BIT Signal Meaning
0
1
2
3
CV
CC
CAL
ON
Operation Instrument Summary Register
Constant voltage
Constant current
The power supply is calculating the new calibration parameter.
The output of the power supply is ON or OFF.
1
2
3
INST1
INST2
INST3
Operation Instrument Status Register
STATus:OPERation:INSTrument:ISUMmary1 is reported to INST1
STATus:OPERation:INSTrument:ISUMmary2 is reported to INST2
STATus:OPERation:INSTrument:ISUMmary3 is reported to INST3
1 ISUM
Operation status register
Summary of STAT:OPER:INST
0
1
CV
CC
Questionable Instrument Summary Register
Constant voltage
Constant current
1
2
3
INST1
INST2
INST3
Questionable Instrument status Register
STATus:QUEStionable:INSTrument:ISUMmary1 is reported to INST1
STATus:QUEStionable:INSTrument:ISUMmary2 is reported to INST2
STATus:QUEStionable:INSTrument:ISUMmary3 is reported to INST3
4
13
OTP
ISUM
Questionable Status Register
Over temperature protection
Summary of STAT:QUES:INST
0
2
3
4
5
7
OPC
QYE
DDE
EXE
CME
PON
Standard Event Register
Operation complete.
Query error. Data for output array is missing.
Device-dependent error. Data stored in the register is missing or the error occurs in
preliminary checkout.
Execution error. The command parameter overflows or the condition is not right.
Command error. Syntax or semantic error occurs when receiving information.
Power on. The value is 1 when the power supply is reset.
2
3
4
5
6
7
EAV
QUES
MAV
ESB
RQS
OPER
Status Byte Register
Error buffer is available
If the questionable status register changes, QUES is 1.
Output buffer is available
If the standard event enable register changes, ESB is 1.
If the operation status register changes, OPER is 1.