Remote Control Basics
R&S
®
NRPxxS(N)
157
User Manual 1177.5079.02 ─ 10
Optional mnemonics
Some command systems permit certain mnemonics to be inserted into the header or
omitted. These mnemonics are marked by square brackets in the description. The
instrument must recognize the long command to comply with the SCPI standard. Some
commands are considerably shortened by these optional mnemonics.
Example:
Definition:
INITiate[:IMMediate]
Command:
INIT:IMM
is equivalent to
INIT
Parameters
Parameters must be separated from the header by a "white space". If several parame-
ters are specified in a command, they are separated by a comma.
For a description of the parameter types, refer to
Chapter 11.2.3, "SCPI Parameters"
Special characters
|
Parameters
A vertical stroke in parameter definitions indicates alternative possibilities in the sense of "or". The
effect of the command differs, depending on which parameter is used.
[
]
Mnemonics in square brackets are optional and can be inserted into the header or omitted.
Example
:
INITiate[:IMMediate]
INIT:IMM
is equivalent to
INIT
{
}
Parameters in curly brackets are optional and can be inserted once or several times, or omitted.
11.2.3
SCPI Parameters
Many commands are supplemented by a parameter or a list of parameters. The
parameters must be separated from the header by a "white space" (ASCII code 0 to 9,
11 to 32 decimal, e.g. blank). Allowed parameters are:
●
Numeric values
●
Special numeric values
●
Boolean parameters
●
Text
●
Character strings
●
Block data
The parameters required for each command and the allowed range of values are
specified in the command description.
SCPI Command Structure
