SCPI Command Reference
M370430-01 Rev B A-7
Parameter Types
Several different data types are defined for use in program messages and
response messages.
Boolean Parameters
Boolean parameters are single binary conditions such as 1 and 0, or
ON and OFF. The following is an example of a command that uses
Boolean parameters:
SYST:COMM:GPIB:PONS {ON|OFF|1|0}
Discrete Parameters
Discrete parameters are used when program settings have a limited
number of values. If you query a discrete parameter, the response
will always be in the short form with all uppercase letters. The
following is an example of a command that uses discrete
parameters:
TRIG:SOUR {BUS|EXT|IMM|NONE}
Numeric Parameters
Numeric parameters are number representations such as decimal
points, optional signs, and scientific notation. Values such as
MINimum and MAXimum are accepted as substitutes for numbers.
When DEFault is provided as a parameter, the machine selects the
default value automatically. No units' suffix should be included
with the parameter, only support for defaults units is available. In
cases where specific numeric values are accepted, the power unit
will round the input parameters. The following is an example of a
command that uses numeric parameters:
VOLT:PROT {<voltage>|MAX|MIN}
String Parameters
String parameters are used when a series of ASCII characters is
required. Strings must be enclosed within single or double
quotations. The beginning and ending quotation marks must be
matching. Quote delimiters may be included in the string by typing
the quotation marks twice without any characters in between. The
following is an example of a command that uses string parameters:
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