User`s guide

Parametric Analysis 2
-25
Settin
g
Up and Runnin
g
the
Parametric Anal
y
sis
To chan
g
e the value of R1 to the expression
{Rval}
1
In Schematics, open
clippera.sch.
2
Double-click the value label for R1.
3
In the Set Attribute Value dialog box, type
{Rval}.
4
Click OK.
To add a PARAM s
y
mbol to declare the parameter
Rval
1
From the Draw menu, select Get New Part.
2
In the Part Name text box, type
PARAM, then click Place &
Close.
3
Place one PARAM symbol on any open space on the
schematic.
4
Double-click the PARAM symbol to display the attributes
list.
5
Double-click NAME1 and type
Rval (no curly braces) in
the Value text box.
6
Click Save Attr to accept the change.
7
Double-click VALUE1, type
1k, then click Save Attr.
8
Click OK. Rval 1k appears in the PARAMETERS list on the
schematic.
PSpice A/D interprets text in
curly braces as an expression
that evaluates to a numerical
value. This example uses the
simplest form of an expression—
a constant. The value of R1 will
take on the value of the Rval
parameter, whatever it may be.
or press C+g