HP 22A, 83620A, 24A manual Getting Started Programming

-7.89E-01use either E or e in exponentials

+256 leading + allowed

.5digits left of decimal point optional

Examples of numeric parameters in commands:

100 OUTPUT @Source ; ” : FREquency : STARt l.OE+09”

1 IO OUTPUT @Source ; I’ : LIST:FREquency lO.Oe+9,le+7”

Extended Numeric Parameters. Most measurement related subsystems use extended numeric parameters to specify physical quantities. Extended numeric parameters accept all numeric parameter values and other special values as well. All extended numeric parameters accept MAXimum and MINimum as values. Other special values, such as UP and DOWN may be available as documented in the instrument’s command summary. Some instruments also

let you to send engineering units as suffixes to extended numeric parameters. The SCPI Command Summary lists the suffixes available, if any. Note that extended numeric parameters are not used for common commands or STATUS subsystem commands.

Examples of extended numeric parameters:

100.any simple numeric values

- 1 . 2 3largest valid setting 4.56e<space>3

-7.89E-01

+256

.5

MAX

MINvalid setting nearest negative infinity

Examples of extended numeric parameters in commands:

100 OUTPUT OSource;“:FREQuency:STOP MAX”

110 OUTPUT @Source ; ” :LIST:FRELjuency MAX,MIN”

Discrete Parameters. Use discrete parameters to program settings that have a finite number of values. Discrete parameters use mnemonics to represent each valid setting. They have a long and a short form, like command mnemonics. You can use mixed upper and lower case letters for discrete parameters.

Examples of discrete parameters:

INTernal level internally

DIODe level using an external diode

PMETer level using an external power meter

MMHead Level using a mm-wave source module

Examples of discrete parameters in commands:

100 OUTPUT @Source; ” :POWer:ALC:SOURce INT”

110 OUTPUT @Source ; ” :POWer:ALC:SOURce mmh”

1-74 Getting Started Programming