private string addressOrAlias; // VISA identifier of the instrument
// <METHODS>
/// <summary>
/// Connects to the instrument via selected connection method (interface)
/// </summary>
/// <param name="addressOrAlias">VISA address or alias of the instrument</param>
/// <param name="connectionMode">Physical interface over which the connection is made</param>
public virtual void Connect(string addressOrAlias, ConnectionModes connectionMode)
{
if (IsConnected)
{
Disconnect();
} // disconnect first
this.addressOrAlias = addressOrAlias;
switch (connectionMode)
{
case ConnectionModes.USB:
dmm = new UsbSession(addressOrAlias);
break;
case ConnectionModes.TCPIP:
dmm = new TcpipSession(addressOrAlias);
break;
case ConnectionModes.Serial:
dmm = new SerialSession(addressOrAlias);
break;
case ConnectionModes.VXI:
dmm = new VxiSession(addressOrAlias);
break;
default:
break;
}
io = dmm.RawIO;
dmm.TimeoutMilliseconds = Global.VISATimeout;
}
/// <summary>
/// Disconnect the instrument and free the connection resources
/// </summary>
public void Disconnect()
{
io = null;
if (dmm != null)
{
dmm.Dispose();
}
dmm = null;
addressOrAlias = null;
}
