Network and Remote Operation
R&S
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User Manual 1177.6298.02 ─ 08
Instrument responses
Instrument responses (response messages and service requests) are messages the
instrument sends to the controller after a query. They can contain measurement
results, instrument settings and information on the instrument status.
14.1.5
SCPI Command Structure
SCPI commands consist of a header and, in most cases, one or more parameters. The
header and the parameters are separated by a "white space" (ASCII code 0 to 9, 11 to
32 decimal, e.g. blank). The headers may consist of several mnemonics (keywords).
Queries are formed by appending a question mark directly to the header.
The commands can be either device-specific or device-independent (common com-
mands). Common and device-specific commands differ in their syntax.
14.1.5.1
Syntax for Common Commands
Common (= device-independent) commands consist of a header preceded by an aster-
isk (*), and possibly one or more parameters.
Table 14-3: Examples of common commands
*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.
Remote Control Basics
