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Model 2651A High Power System SourceMeter® Instrument Reference Manual Section 6: Instrument programming

2651A-901-01 Rev. A / March 2011 6-13

-- Clear the display.

display.clear()

-- Prompt user for digital I/O line on which to output trigger.

myDigioLine = display.menu(

"Select digio line", "1 2 3 4 5 6 7 8 9")

-- Convert user input to a number.

intMyDigioLine = tonumber(myDigioLine)

-- Prompt user for digital output trigger mode.

myDigioEdge = display.menu(

"Select digio mode", "Rising Falling")

if myDigioEdge == "Rising" then

edgeMode = digio.TRIG_RISING

else

edgeMode = digio.TRIG_FALLING

end

-- Prompt user for output trigger pulsewidth.

myPulseWidth = display.prompt(

"000.0", "us", "Enter trigger pulsewidth", 10, 10, 100)

-- Scale the entered pulsewidth

myPulseWidth = myPulseWidth * 1e-6

-- Generate the pulse.

digio.trigger[intMyDigioLine].mode = edgeMode

digio.trigger[intMyDigioLine].pulsewidth = myPulseWidth

digio.trigger[intMyDigioLine].assert()

-- Alert the user through the display that the

-- output trigger has occurred.

display.setcursor(1, 1)

display.settext(

"Trigger asserted $Non digital I/O line " .. intMyDigioLine)

-- Wait five seconds and then return to main screen.

delay(5)

display.screen = display.SMUA

Keithley 2651A Reference Manual

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