User Manual LW120
The MIN and MAX
Parameters
Substitute MINimum or MAXimum in place of a parameter for some
commands. For example, consider the following command:
FREQuency
{<frequency>|MINimum|MAXimum}
Instead of selecting a specific frequency, substitute MIN to set the
frequency to its minimum value or MAX to set the frequency to its
maximum value.
Querying Parameter
Setting
Query the current value of most parameters by adding a question
mark ( ? ) to the command. For example, the following command sets
the output function to square:
SOUR:FUNC:SHAP
SQR
Query the output function by executing:
SOUR:FUNC:SHAP?
Query Response
Format
The response to a query depends on the format of the command. In
general, a response to a query contains current values or settings of
the generator. Commands that set values can be queried for their
current value. Commands that set modes of operation can be queried
for their current mode. IEEE-STD-488.2 common queries generate
responses, which are common to all IEEE-STD-488.2 compatible
instruments.
SCPI Command
Terminator
A command string sent to the function generator must terminate with a
<new line> character. The IEEE-STD-488 EOI message is a <new
line> character. Command string termination always resets the current
SCPI command path to the root level.
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?
Remote Programming Reference 4-3
