Racal Instruments 3162A/B, User Manual

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User Manual 3162A/B
SCPI Command Reference 4-4
IEEE-STD-488.2
Common Commands
The IEEE-STD-488.2 standard defines a set of common commands that
perform functions like reset, trigger and status operations. Common commands
begin with an asterisk ( * ), are four to five characters in length, and may
include one or more parameters. The command keyword is separated from the
first parameter by a blank space. Use a semicolon ( ; ) to separate multiple
commands as shown below:
*RST; *STB?; *IDN?
SCPI Parameter
Type
The SCPI language defines four different data formats to be used in program
messages and response messages: numeric, discrete, boolean, and arbitrary
block.
Numeric Parameters
Commands that require numeric parameters will accept all commonly used
decimal representations of numbers including optional signs, decimal points,
and scientific notation. Special values for numeric parameters like MINimum
and MAXimum are also accepted.
Engineering unit suffices with numeric parameters (e.g., MHz or kHz) can also
be sent. If only specific numeric values are accepted, the function generator will
ignore values which are not allowed and will generate an error message. The
following command is an example of a command that uses a numeric
parameter:
VOLT:AMPL <amplitude>
Discrete Parameters
Discrete parameters are used to program settings that have a limited number
of values (i.e., FIXed, USER and SEQuence). They have short and long form
command keywords. Upper and lowercase letters can be mixed. Query
responses always return the short form in all uppercase letters. The following
command uses discrete parameters:
SOUR:FUNC:MODE {FIXed | USER | SEQuence}
Boolean Parameters
Boolean parameters represent a single binary condition that is either true or
false. The generator accepts "OFF" or "0" for a false condition. The generator
accepts "ON" or "1" for a true condition. The instrument always returns "0" or
"1" when a boolean setting is queried. The following command uses a boolean
parameter:
OUTP:FILT { OFF | ON }
The same command can also be written as follows:
OUTP:FILT {0 | 1 }