1278
Keysight P9241/42/43A Oscilloscopes SCPI Programmer's Guide
38
Programming Examples
CheckVisaStatus(nViStatus)
nViStatus = visa32.viFlush(m_nSession, visa32.VI_READ_BUF)
CheckVisaStatus(nViStatus)
Return length
End Function
Private Sub CheckInstrumentErrors(ByVal strCommand As String)
' Check for instrument errors.
Dim strInstrumentError As New StringBuilder(1000)
Dim bFirstError As Boolean = True
Do
' While not "0,No error"
VisaSendCommandOrQuery(":SYSTem:ERRor?")
strInstrumentError = VisaGetResultString()
If Not strInstrumentError.ToString().StartsWith("+0,") Then
If bFirstError Then
Console.WriteLine("ERROR(s) for command '{0}': ", _
strCommand)
bFirstError = False
End If
Console.Write(strInstrumentError)
End If
Loop While Not strInstrumentError.ToString().StartsWith("+0,")
End Sub
Private Sub OpenResourceManager()
Dim nViStatus As Integer
nViStatus = visa32.viOpenDefaultRM(Me.m_nResourceManager)
If nViStatus < visa32.VI_SUCCESS Then
Throw New
_
ApplicationException("Failed to open Resource Manager")
End If
End Sub
Private Sub OpenSession()
Dim nViStatus As Integer
nViStatus = visa32.viOpen(Me.m_nResourceManager, _
Me.m_strVisaAddress, visa32.VI_NO_LOCK, _
visa32.VI_TMO_IMMEDIATE, Me.m_nSession)
CheckVisaStatus(nViStatus)
End Sub
Public Sub SetTimeoutSeconds(ByVal nSeconds As Integer)
Dim nViStatus As Integer
nViStatus = visa32.viSetAttribute(Me.m_nSession, _
visa32.VI_ATTR_TMO_VALUE, nSeconds * 1000)
CheckVisaStatus(nViStatus)
End Sub
Public Sub CheckVisaStatus(ByVal nViStatus As Integer)
' If VISA error, throw exception.
If nViStatus < visa32.VI_SUCCESS Then
Dim strError As New StringBuilder(256)
visa32.viStatusDesc(Me.m_nResourceManager, nViStatus, strError)
Throw New ApplicationException(strError.ToString())
Содержание P9241
Страница 1: ...Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide...
Страница 6: ...6 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide...
Страница 36: ...36 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 1 What s New...
Страница 41: ...Setting Up 2 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 41...
Страница 44: ...44 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 2 Setting Up...
Страница 222: ...222 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 7 Root Commands...
Страница 244: ...244 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 8 ACQuire Commands...
Страница 256: ...256 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 9 CALibrate Commands...
Страница 278: ...278 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 10 CHANnel n Commands...
Страница 328: ...328 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 15 EXTernal Trigger Commands...
Страница 386: ...386 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 17 FUNCtion m Commands...
Страница 390: ...390 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 18 HCOPY Commands...
Страница 416: ...416 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 20 MARKer Commands...
Страница 498: ...498 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 21 MEASure Commands...
Страница 532: ...532 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 22 MTESt Commands...
Страница 572: ...572 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 24 SAVE Commands...
Страница 596: ...596 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 25 SBUS n Commands SBUS n A429 SOURce on page 588...
Страница 900: ...900 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 28 TIMebase Commands...
Страница 1080: ...1080 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 31 WGEN w Commands...
Страница 1142: ...1142 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 34 Error Messages...
Страница 1204: ...1204 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 37 More About Oscilloscope Commands...
Страница 1344: ...1344 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide Index...