Agilent Technologies E5100A, Programming Manual, Page: 44 / 373

Column P arameters and V ariables
As explained in the previous section, an GPIB command that requires a parameter is executed
as follows:
OUTPUT @E5100;"CENT 70MHZ" Sets the center frequency to 70 MHz.
Module 2-15. Command with Fixed V alue
When a command has a specied sux, the sux multiplier and sux units can be used with
parameters as follows (the sux multiplier must be used with the sux unit):
P arameter Sux Unit A vailable Multipliers
Frequency HZ (Hz) G
MA
K
M
U
N
P
F
: G ( giga; 2 10
9
)
: M ( mega; 2 10
6
)
: k ( kilo; 2 10
3
)
: m ( milli; 2 10
03
)
: ( micro; 2 10
06
)
: n ( nano; 2 10
09
)
: p ( pico; 2 10
012
)
: f ( femto; 2 10
015
)
P ower DBM (dBm)
V oltage V (V olt)
Current A (Ampere)
Impedance
1
OHM ()
A dmittance
2
SIE (Siemens)
Inductance H (henry)
Capacitance F (farad)
Time S (second)
Phase DEG ( ; default),
RAD (radian)
distance M (meter)
1 Resistance and reactance are the same
2 Conductance or susceptance are the same
The sux is optional and can be omitted. If you omit it, the analyzer assumes that the default
sux is sent. Y ou can use a variable to change the parameter depending on the situation.
OUTPUT @E5100;"CENT ";Center Sets the center frequency to Center .
Module 2-16. Command with V aluable
This statement passes the variable Center to the GPIB command CENT as a parameter . Y ou
can place a parameter outside of double quotes and separate them with a semicolon to use a
variable as a parameter . (Y ou must always insert a space after a command.)
The following shows an GPIB command that takes a character string parameter .
OUTPUT @E5100;"SAVDGRA ""filename""" Saves the graphic image as the lename .
Module 2-17. Command with Character String P arameter
Character strings are usually double quoted (" ). In this case , however , you must double the
double quotes ("" ) for the inside double quotes because an GPIB command itself is already
double quoted.
2-8 Setup and Measurement Program