3 Programming the Analyzer
IEEE 488.2 Common Commands
IEEE 488.2 Common Commands
The instrument supports the following subset of IEEE 488.2 Common Commands, as defined in Chapter 10
of IEEE Standard 488.2–1992. As indicated in the detailed descriptions, some of these commands
correspond directly to instrument front-panel key functionality, while others are available only as remote
commands.
Command Description
*CAL? Align Now "All " on page 297
*CLS "Clear Status " on page 142
*ESE
*ESE?
"Standard Event Status Enable " on page 142
*ESR? "Standard Event Status Register Query " on page 143
*IDN? "Identification Query " on page 143
*OPC
*OPC?
"Operation Complete " on page 144
*OPT? "Query Instrument Options " on page 145
*RCL "Recall Instrument State " on page 145
*RST "*RST (Remote Command Only)" on page 146
*SAV "Save Instrument State " on page 146
*SRE
*SRE?
"Service Request Enable " on page 146
*STB? "Status Byte Query " on page 147
*TRG "Trigger " on page 147
*TST? "Self Test Query " on page 147
*WAI "Wait-to-Continue " on page 148
All
(In MXE the key label is “All (plus RF Presel 20 Hz – 3.6 GHz)”)Immediately executes an alignment of all
subsystems In MXE, the Align Now All is followed by additionally aligning the RF Preselector section, so in
MXE, the key label contains the parenthetical note “(plus RF Presel 20 Hz – 3.6 GHz)”. The instrument
stops any measurement currently underway, performs the alignment, then restarts the measurement from
the beginning (similar to pressing the Restart key).
If an interfering user signal is present at the RF Input, the alignment is performed on all subsystems except
the RF. After completion, the Error Condition message “Align skipped: 50 MHz interference” or “Align
skipped: 4.8 GHz interference” is generated. In addition the Error Condition message “Align Now, RF
required” is generated, and bits 11 and 12 are set in the Status Questionable Calibration register.
The query form of the remote commands (:CALibration[:ALL]? or *CAL?) invokes the alignment of all
subsystems and returns a success or failure value. An interfering user signal is not grounds for failure; if the
140 EMI Receiver Mode Reference
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