Agilent Technologies 33250A User Manual (English)

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Chapter 6 Application Programs

Example: Microsoft Visual Basic for Windows

’

’ Triggered Burst

’

Arb.Output "output:state off" ’ Turn OFF Output BNC

Arb.Output "output:sync off" ’ Disable Sync BNC

Arb.Output "func square" ’ Select Function square

Arb.Output "frequency 20e3" ’ 20kHz

Arb.Output "volt 1;:volt:offset 0" ’ 1Vpp and 0V offset

Arb.Output "func:square:dcycle 20" ’ 20% duty cycle

Arb.Output "trig:sour bus" ’ Bus triggering

Arb.Output "burst:ncycles 3" ’ Burst of 3 cycles per trigger

Arb.Output "burst:state on" ’ Enable Burst

Arb.Output "output:state on" ’ Turn ON Output BNC

Arb.Output "output:sync on" ’ Enable Sync BNC

Check_Errors ’ Routine checks for errors

For i = 1 To 20

Arb.Output "*trg" ’ Send BUS trigger

Sleep 100 ’ Wait 100msec

Next i

MsgBox "Triggered Burst", vbOKOnly, "33250A Example"

’

’ Download a 20 point Arbitrary waveform using ASCII.

’

Dim Arb_20(0 To 19) As Double ’ Allocate array of 20 reals

Fill_array Arb_20 ’ Call routine to fill array

With Arb.IO.Write

.Command "data volatile,", False ’ Place command into buffer

.Argument(0) = Arb_20 ’ Place comma separated data into buffer

.Send ’ Send command + data

End With

Arb.Output "func:user volatile" ’ Select downloaded waveform

Arb.Output "apply:user 10e3,1,0" ’ Output waveform: 10kHz, 1Vpp

Check_Errors ’ Routine checks for errors

MsgBox "Download a 20 point Arb waveform using ASCII.", vbOKOnly, "33250A Example"

’

’ Download a 6 point Arbitrary waveform using Binary.

’ This example for GPIB only

’

Dim Arb_6() ’ Create array

Dim Length As Long ’ Used to find total length of array

Dim Command() As Byte ’ Used to store total command sequence

Arb_6 = Array(2047, -2047, 2047, 2047, -2047, -2047)

Length = IOUtils.CreateIEEEBlock(Arb_6, IIOUtils_Short, IIOUtils_BigEndian,

"data:dac volatile,", Command)

Arb.IO.WriteBytes Length, Command ’ Download command and bytes

Arb.Output "apply:user 5000,1,0" ’ Output waveform: 5kHz, 1Vpp

Check_Errors

MsgBox "Download a 6 point Arb waveform using Binary.", vbOKOnly, "33250A Example"

Continued...

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Agilent Technologies 33250A Specifications

General

Frequency Range	1 µHz to 80 MHz
Amplitude Range	10 mVpp to 10 Vpp into 50 Ω
Output Impedance	50 Ω
Modulation Types	AM, FM, PM, FSK, PWM
Sweep Modes	Linear, Logarithmic
Function Generator Type	Arbitrary
Waveforms	Sine, Square, Ramp, Triangle, Noise, Arbitrary
Interface	GPIB, USB