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The PU command blanks the CRT beam to prevent plot vectors from being displayed on the CRT.
A typical use of the PU command is shown in the sample program below.
10
20
OUTPUT @Sa;"IP,A4;KSm;KSo;"
30
40
50
OUTPUT @Sa;"900,300,700,300,700"
60
E N D
Line 20:
Presets the instrument and clears the display.
Line 30:
Specifies display size D2 and, with the PU command, instructs the analyzer not to display the
vector to the initial point specified by x,y coordinates 900,500.
Line 40:
PA (plot absolute) command establishes the starting point of the rectangle to be drawn on the
CRT The following PD (pen-down) command instructs the analyzer to display the vector to
coordinates 700,500.
Line 50:
Plots and displays the remainder of the rectangle on the CRT
Pen-up
Programming 295
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