Remote Control
R&S
®
RTM20xx
251
User Manual 1317.4726.02 ─ 01
Command
Effect on the instrument
PPC (Parallel Poll Configure)
Configures the instrument for parallel poll.
SDC (Selected Device Clear)
Aborts the processing of the commands just received and sets the
command processing software to a defined initial state. Does not
change the instrument setting.
15.1.4.2
SCPI Command Structure
SCPI commands consist of a so-called header and, in most cases, one or more param-
eters. 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 (key-
words). 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.
Syntax for Common Commands
Common (=device-independent) commands consist of a header preceded by an asterisk
(*) 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.
Basics