Agilent Technologies 2000 X-Series Wartungshandbuch PDF herunterladen (Seite 815)

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Programming Examples 38

Agilent InfiniiVision 2000 X-Series Oscilloscopes Programmer's Guide 815

class VisaComInstrument

{

private ResourceManagerClass m_ResourceManager;

private FormattedIO488Class m_IoObject;

private string m_strVisaAddress;

// Constructor.

public VisaComInstrument(string strVisaAddress)

{

// Save VISA addres in member variable.

m_strVisaAddress = strVisaAddress;

// Open the default VISA COM IO object.

OpenIo();

// Clear the interface.

m_IoObject.IO.Clear();

}

public void DoCommand(string strCommand)

{

// Send the command.

m_IoObject.WriteString(strCommand, true);

// Check for inst errors.

CheckInstrumentErrors(strCommand);

}

public void DoCommandIEEEBlock(string strCommand,

byte[] DataArray)

{

// Send the command to the device.

m_IoObject.WriteIEEEBlock(strCommand, DataArray, true);

// Check for inst errors.

CheckInstrumentErrors(strCommand);

}

public string DoQueryString(string strQuery)

{

// Send the query.

m_IoObject.WriteString(strQuery, true);

// Get the result string.

string strResults;

strResults = m_IoObject.ReadString();

// Check for inst errors.

CheckInstrumentErrors(strQuery);

// Return results string.

return strResults;

}

public double DoQueryNumber(string strQuery)

{

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