Scpi Data Types - Keysight N432A Programming Manual

1 N432A Remote Operation

SCPI data types

The SCPI language defines different data formats for use in program messages
and response messages. Instruments are flexible listeners and can accept
commands and parameters in various formats. However, SCPI instruments are
precise talkers. This means that SCPI instruments always respond to a particular
query in a predefined, rigid format.
<boolean> definition
Throughout this document, <boolean> is used to represent ON|OFF|<NRf>.
Boolean parameters have a value of 0 or 1 and are unitless. ON corresponds to 1
and OFF corresponds to 0.
On input, an <NRf> is rounded to an integer. A nonzero result is interpreted as 1.
Queries always return a 1 or 0, never ON or OFF.
<character_data> definition
Throughout this document, <character_data> is used to represent character
data, that is, A to Z, a to z, 0 to 9, and _ (underscore). START and R6_5F are
examples of character data. The first character must be an alphanumeric,
followed by either alphanumeric or underscore characters up to a maximum of 12
characters. The format is defined as shown in the following figure.
Figure 1-2
<NAN> definition
Not a number (NAN) is represented as 9.91 E37. Not a number is defined in
IEEE 754.
50
<upper/lower
case alpha>
<character_data> format
<upper/lower
case alpha>
<digit>
Keysight N432A Programming Guide