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96 Agilent E1441A SCPI Command Reference
Chapter 3
APPLy Commands
The APPLy command provides the most straightforward method to program the
function generator. It allows you to select the output function, output frequency,
output amplitude and a dc offset voltage on which the output signal resides in a single
command.
Note The APPLy commands not only set the instrument’s function, frequency,
amplitude, and offset, it also sets Duty Cycle to 50%, turns Modulation
OFF, sets the TRIG:SOUR to IMM, and sets the TRIG:SLOPE to POS.
Because of this, where a sequence of commands is needed to configure the
instrument, and one of them will be a SOUR:APPLY command, the APPLy
command must be first.
APPLy Command Parameters
Each APPLy command specifies the function to be output followed by three
parameters.
Subsystem
Syntax
APPLy:<FUNCTION> [<frequency> | DEFault[,<amplitude> | DEFault[,<offset>]]]
Syntax Example Executing the following statement will output a sine wave with frequency of 5 kHz
and amplitude of 3 Vpp with a -2.5 volt offset:
"APPL:SIN 5.0E+3, 3.0, -2.5"
default units are hertz, Vpp, VDC
Because of the use of optional parameters in the APPLy commands (enclosed in
square brackets), you must specify frequency to use the amplitude parameter, and
you must specify both frequency and amplitude to use the offset parameter. The
following statement is valid (frequency and amplitude are specified; offset is
omitted):
"APPL:SIN 5.0E+3, 3.0"
However, you CANNOT specify amplitude or amplitude and offset without specifying
a frequency.
Parameter
Name
Parameter
Type
Range of
Values
Default
Setting
frequency numeric 100 µHz - 15 MHz
(see the following section
titled "Output Frequency")
1 kHz
amplitude numeric 50 mVpp - 20 Vpp
(see the following section
titled "Output Amplitude")
100 mVpp
(into 50 ohms)
offset numeric see equation below 0 Vdc