Command Syntax - Stanford Research Systems SIM984 Operation And Service Manual

2.4 Commands

2.4.1 Command Syntax

SIM984 Isolation Amplifier
The four letter mnemonic (shown in CAPS) in each command se-
quence specifies the command. The rest of the sequence consists of
parameters.
Commands may take either set or query form, depending on whether
the "?" character follows the mnemonic. Set only commands are
listed without the "?", query only commands show the "?" after the
mnemonic, and optionally query commands are marked with a "(?)".
Parameters shown in { } and [ ] are not always required. Parameters in
{ } are required to set a value, and are omitted for queries. Parameters
in [ ] are optional in both set and query commands. Parameters listed
without any surrounding characters are always required.
Do not send ( ) or { } or [ ] as part of the command.
Multiple parameters are separated by commas. Multiple commands
may be sent on one command line by separating them with semi-
colons (;) so long as the input buffer does not overflow. Commands
are terminated by either CR or LF characters. Null commands
and whitespace are ignored. Execution of command(s) does not
begin until the command terminator is received.
Token parameters (generically shown as z in the command de-
tokens
scriptions) can be specified either as a keyword or integer value.
Command descriptions list the valid keyword options, with each
keyword followed by its corresponding integer value. For example,
to set the response termination sequence to CR + LF , the following
two commands are equivalent:
For queries that return token values, the return format (keyword or
integer) is specified with the TOKN command.
TERM CRLF
—or—
2 – 5
TERM 3