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Common Commands
15-3
Command reference
*IDN?
—
identi
fi
cation query
Reads identi
fi
cation code
The identi
fi
cation code includes the manufacturer, model number, serial number, and
fi
rm-
ware revision levels and is sent in the following format:
KEITHLEY INSTRUMENTS INC., MODEL 6430, xxxxxxx, yyyyy/zzzzz /a/d
Where:
xxxxxxx is the serial number.
yyyyy/zzzzz is the
fi
rmware revision levels of the digital board ROM and display
board ROM, including date and time of build.
a is the analog board revision level.
d is the digital board revision level.
*OPC
—
operation complete
Sets OPC bit
*OPC?
—
operation complete query
Places a
“
1
”
in output queue
When *OPC is sent, the OPC bit in the Standard Event Register will set after all pending
command operations are complete. When *OPC? is sent, an ASCII
“
1
”
is placed in the Output
Queue after all pending command operations are complete.
Typically, either one of these commands is sent after the INITiate command. The INITiate
command is used to take the instrument out of idle in order to perform measurements. While
operating within the trigger model layers, all sent commands (except DCL, SDC, IFC,
SYSTem:PRESet, *RST, *RCL, *TRG, GET, and ABORt) will not execute.
After all programmed operations are completed, the instrument returns to the idle state at
which time all pending commands (including *OPC and/or *OPC?) are executed. After the last
pending command is executed, the OPC bit and/or an ASCII
“
1
”
is placed in the Output Queue.
Summary of Contents for 6430
Page 26: ......
Page 32: ......
Page 78: ...2 14 Connections ...
Page 98: ...3 20 Basic Source Measure Operation ...
Page 138: ...5 30 Source Measure Concepts ...
Page 156: ...6 18 Range Digits Speed and Filters ...
Page 168: ...7 12 Relative and Math ...
Page 176: ...8 8 Data Store ...
Page 202: ...9 26 Sweep Operation ...
Page 248: ...11 22 Limit Testing ...
Page 310: ...16 6 SCPI Signal Oriented Measurement Commands ...
Page 418: ...17 108 SCPI Command Reference ...
Page 450: ...18 32 Performance Verification ...
Page 477: ...A Specifications ...
Page 489: ...B StatusandErrorMessages ...
Page 498: ...B 10 Status and Error Messages ...
Page 499: ...C DataFlow ...
Page 503: ...D IEEE 488BusOverview ...
Page 518: ...D 16 IEEE 488 Bus Overview ...
Page 519: ...E IEEE 488andSCPI ConformanceInformation ...
Page 523: ...F MeasurementConsiderations ...
Page 539: ...G GPIB488 1Protocol ...
Page 557: ......