Agilent Technologies InfiniiVision 5000 Series

298 Agilent InfiniiVision 5000 Series Oscilloscopes Programmer's Guide
5 Commands by Subsystem
myScope.WriteString ":MEASURE:FREQUENCY?" ' Query for frequency.
varQueryResult = myScope.ReadNumber ' Read frequency.
MsgBox "Frequency:" + vbCrLf _
+ FormatNumber(varQueryResult / 1000, 4) + " kHz"
myScope.WriteString ":MEASURE:DUTYCYCLE?" ' Query for duty cycle.
varQueryResult = myScope.ReadNumber ' Read duty cycle.
MsgBox "Duty cycle:" + vbCrLf _
+ FormatNumber(varQueryResult, 3) + "%"
myScope.WriteString ":MEASURE:RISETIME?" ' Query for risetime.
varQueryResult = myScope.ReadNumber ' Read risetime.
MsgBox "Risetime:" + vbCrLf _
+ FormatNumber(varQueryResult * 1000000, 4) + " us"
myScope.WriteString ":MEASURE:VPP?" ' Query for Pk to Pk voltage.
varQueryResult = myScope.ReadNumber ' Read VPP.
MsgBox "Peak to peak voltage:" + vbCrLf _
+ FormatNumber(varQueryResult, 4) + " V"
myScope.WriteString ":MEASURE:VMAX?" ' Query for Vmax.
varQueryResult = myScope.ReadNumber ' Read Vmax.
MsgBox "Maximum voltage:" + vbCrLf _
+ FormatNumber(varQueryResult, 4) + " V"
Example program from the start: "VISA COM Example in Visual Basic" on
page 744