Remote Control Basics
R&S
®
NRPxxS(N)
156User Manual 1177.5079.02 ─ 10
11.2.1 Syntax for Common Commands
Common (=device-independent) commands consist of a header preceded by an aster-
isk (*) and possibly one or more parameters.
Examples:
*RST RESET Resets the instrument.
*ESE EVENT STATUS ENABLE Sets the bits of the event status enable
registers.
*ESR? EVENT STATUS QUERY Queries the contents of the event status
register.
*IDN? IDENTIFICATION QUERY Queries the instrument identification
string.
11.2.2 Syntax for Device-Specific Commands
Long and short form
The mnemonics feature a long form and a short form. The short form is marked by
upper case letters here, to distinguish it from the long form, which constitutes the com-
plete word. Either the short form or the long form can be entered; other abbreviations
are not permitted.
Example:
INITiate:CONTinuous is equivalent to INIT:CONT or init:cont.
Case-insensitivity
Upper case and lower case notation only serves to distinguish the two forms in the
manual, the instrument itself is case-insensitive.
Numeric suffixes
If a command can be applied to multiple instances of an object, e.g. specific channels
or sources, the required instances can be specified by a suffix added to the command.
Numeric suffixes are indicated by angular brackets (<1...4>, <n>, <i>) and are replaced
by a single value in the command. Entries without a suffix are interpreted as having the
suffix 1.
Different numbering in remote control
For remote control, the suffix can differ from the number of the corresponding selection
used in manual operation. SCPI prescribes that suffix counting starts with 1. Suffix 1 is
the default state and used when no specific suffix is specified.
Some standards define a fixed numbering, starting with 0. If the numbering differs in
manual operation and remote control, it is indicated for the corresponding command.
SCPI Command Structure
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