Using "*" Commands; Syntax Conventions; Syntax Diagram Conventions - Agilent Technologies N1911A Programming Manual

If you send two query commands without reading the response from the first, then attempt
N O T E
to read the second response, you may receive some data from the first response followed
by the complete second response. To avoid this, do not send a query command without
reading the response. When you cannot avoid this situation, send a device clear before
sending the second query command.

Using "*" Commands

Commands starting with a "*" are called common commands. They are
required to perform the identical function for all instruments that are
compliant with the IEEE- 488.2 interface standard. The "*" commands are
used to control reset, self- test, and status operations in the power meter.

Syntax Conventions

Throughout this guide, the following conventions are used for SCPI
command syntax.
• Square brackets ([]) indicate optional keywords or parameters.
• Braces ({}) enclose one or more parameters that may be included zero
• Triangle brackets (<>) indicate that you must substitute a value for the
• Bars (|) can be read as "or" and are used to separate alternative

Syntax Diagram Conventions

• Solid lines represent the recommended path.
• Ovals enclose command mnemonics. The command mnemonic must be
N1911A/1912A P-Series Power Meters Programming Guide
or more times.
enclosed parameter.
parameter options.
entered exactly as shown.
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