Specifications

600 Appendix D
Table of corresponding 4291B vs. E4991A GPIB commands
Table of Corresponding GPIB Commands
TRIGger subsystem:
Common commands:
Inputs data to data/memory trace arrays. TRAC Uses the following command to copy
data to the memory trace.
CALC{1-5}:MATH:MEM on page 341
Inputs data to user traces. TRAC {TRX{18-21}|TRY{18-21}} None (No concept of user trace.)
Outputs each trace’s value at a specified point. TRAC:VAL? None (Cannot specify a measurement
point to read a trace value.)
Defines the number of points of the user trace. TRAC:POIN TR{18-21} None (No concept of user trace.)
4291B feature 4291B GPIB command E4991A GPIB command
4291B feature 4291B GPIB command E4991A GPIB command
Selects the trigger event mode. TRIG:EVEN:TYPE TRIG:EVEN on page 525
Sets the trigger signal polarity of an external signal
connected to the rear panel EXT TRIGGER input.
TRIG:SLOP TRIG:SLOP on page 526
Selects the trigger source, which is common to both
channels.
TRIG:SOUR TRIG:SOUR on page 526
4291B feature 4291B GPIB command E4991A GPIB command
Clears the Status Byte Register, the Operation Event
Status Register, the Standard Event Status Register, and
the Instrument Event Status Register.
*CLS *CLS on page 279
Sets the enable bits of the Standard Event Register. *ESE *ESE on page 280
Returns the contents of the Standard Event Status
Register.
*ESR? *ESR? on page 280
Returns a string that represents the analyzer's ID. *IDN? *IDN? on page 281
Sets the Operation Completes bit to 1 when it completes
all pending operations.
*OPC *OPC on page 281
Returns an ASCII character 1 when all pending
operations have been completed.
*OPC? *OPC? on page 281
Queries the options installed. *OPT? *OPT? on page 282
Specifies the address of a controller that is temporarily
passing GPIB control to the analyzer.
*PCB None (Path control not possible.)
Resets the analyzer to its default values. *RST *RST on page 282
Sets the contents of the Status Byte Enable Resister. *SRE *SRE on page 283
Returns the contents of the Status Byte Resister. *STB? *STB? on page 283
Triggers the analyzer when the trigger mode is set to
BUS trigger.
*TRG *TRG on page 284
Executes an internal self-test and returns the test result. *TST? *TST? on page 284
Makes the analyzer wait until all previously sent
commands are completed.
*WAI *WAI on page 284