static void Main(string[] args)
{
// Change this variable to the address of your instrument
string VISA_ADDRESS = "Your instrument's VISA address goes here!";
// Create a connection (session) to the TCP/IP socket on the instrument.
// Change VISA_ADDRESS to a SOCKET address, e.g. "TCPIP::169.254.104.59::5025::SOCKET"
IMessageBasedSession session = GlobalResourceManager.Open(VISA_ADDRESS) as IMessageBasedSession;
// The first thing you should do with a SOCKET connection is enable the Termination Character. Otherwise all of your read's will fail
session.TerminationCharacterEnabled = true;
// We can find out details of the connection
ITcpipSocketSession socket = session as ITcpipSocketSession;
Console.WriteLine("IP: {0}\r\nHostname: {1}\r\nPort: {2}\r\n",
socket.Address,
socket.HostName,
socket.Port);
// Send the *IDN? and read the response as strings
MessageBasedFormattedIO formattedIO = new MessageBasedFormattedIO(session);
formattedIO.WriteLine("*IDN?");
string idnResponse = formattedIO.ReadLine();
Console.WriteLine("*IDN? returned: {0}", idnResponse);
// Close the connection to the instrument
session.Dispose();
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}
static void Main(string[] args)
{
// Change this variable to the address of your instrument
string VISA_ADDRESS = "Your instrument's VISA address goes here!";
// Create a connection (session) to the RS-232 device.
// Change VISA_ADDRESS to a serial address, e.g. "ASRL1::INSTR"
IMessageBasedSession session = GlobalResourceManager.Open(VISA_ADDRESS) as IMessageBasedSession;
// The first thing you should do with a serial port is enable the Termination Character. Otherwise all of your read's will fail
session.TerminationCharacterEnabled = true;
// If you've setup the serial port settings in Connection Expert, you can remove this section.
// Otherwise, set your connection parameters
ISerialSession serial = session as ISerialSession;
serial.BaudRate = 9600;
serial.DataBits = 8;
serial.Parity = SerialParity.None;
serial.FlowControl = SerialFlowControlModes.DtrDsr;
// Send the *IDN? and read the response as strings
MessageBasedFormattedIO formattedIO = new MessageBasedFormattedIO(session);
formattedIO.WriteLine("*IDN?");
string idnResponse = formattedIO.ReadLine();
Console.WriteLine("*IDN? returned: {0}", idnResponse);
// Close the connection to the instrument
session.Dispose();
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}
private void TempMonitor()
{
string idnResponse;
while (true)
{
System.Threading.Thread.Sleep(500);
formattedIOTEMPCON.WriteLine("input? a");
idnResponse = formattedIOTEMPCON.ReadLine().Replace("\n", "");
labelRealTimeTemperature.Text = idnResponse;
fRealtimeTemp = Convert.ToSingle(idnResponse);
}
}
static void Main(string[] args)
{
// Change this variable to the address of your instrument
string VISA_ADDRESS = "Your instrument's VISA address goes here!";
// Create a connection (session) to the instrument
IMessageBasedSession session;
try
{
session = GlobalResourceManager.Open(VISA_ADDRESS) as IMessageBasedSession;
}
catch (NativeVisaException visaException)
{
Console.WriteLine("Couldn't connect. Error is:\r\n{0}\r\nPress any key to exit...", visaException);
Console.ReadKey();
return;
}
// Create a formatted I/O object which will help us format the data we want to send/receive to/from the instrument
MessageBasedFormattedIO formattedIO = new MessageBasedFormattedIO(session);
// For Serial and TCP/IP socket connections enable the read Termination Character, or read's will timeout
if (session.ResourceName.Contains("ASRL") || session.ResourceName.Contains("SOCKET"))
{
session.TerminationCharacterEnabled = true;
}
// Send the *IDN? and read the response as strings
formattedIO.WriteLine("*IDN?");
string idnResponse = formattedIO.ReadLine();
Console.WriteLine("*IDN? returned: {0}", idnResponse);
// Close the connection to the instrument
session.Dispose();
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}
private string[] sendCommand(string comm, float value = 1000)
{
string Comm;
string idnResponse;
string[] normalreturn = { DateTime.Now.ToString(), ":success" };
try
{
switch (comm)
{
case "APER":
Comm = comm + " " + Inter() + txtAveRate.Text;
formattedIOLRC.WriteLine(Comm);
formattedIOLRC.WriteLine("APER?");
idnResponse = formattedIOLRC.ReadLine().Replace("\n", "");
return(normalreturn);
case "Volt":
Comm = comm + " " + txtOscVoltage.Text + "mV";
formattedIOLRC.WriteLine(Comm);
formattedIOLRC.WriteLine("VOLT?");
idnResponse = formattedIOLRC.ReadLine().Replace("\n", "");
return(normalreturn);
case "Freq":
Comm = comm + " " + Convert.ToString(value) + "Hz";
formattedIOLRC.WriteLine(Comm);
formattedIOLRC.WriteLine("Freq?");
idnResponse = formattedIOLRC.ReadLine().Replace("\n", "");
return(normalreturn);
case "Func:IMP CPG":
Comm = comm;
formattedIOLRC.WriteLine(Comm);
formattedIOLRC.WriteLine("Func:IMP?");
idnResponse = formattedIOLRC.ReadLine().Replace("\n", "");
return(normalreturn);
case "Func:IMP CPRP":
Comm = comm;
formattedIOLRC.WriteLine(Comm);
formattedIOLRC.WriteLine("Func:IMP?");
idnResponse = formattedIOLRC.ReadLine().Replace("\n", "");
return(normalreturn);
case "Func:IMP CSRS":
Comm = comm;
formattedIOLRC.WriteLine(Comm);
formattedIOLRC.WriteLine("Func:IMP?");
idnResponse = formattedIOLRC.ReadLine().Replace("\n", "");
return(normalreturn);
case "BIAS:STAT 1":
Comm = comm;
formattedIOLRC.WriteLine(Comm);
formattedIOLRC.WriteLine("BIAS:STAT?");
idnResponse = formattedIOLRC.ReadLine().Replace("\n", "");
return(normalreturn);
case "BIAS:STAT 0":
Comm = comm;
formattedIOLRC.WriteLine(Comm);
formattedIOLRC.WriteLine("BIAS:STAT?");
idnResponse = formattedIOLRC.ReadLine().Replace("\n", "");
return(normalreturn);
case "Fetch?":
string[] idnResponseFetch;
Comm = comm;
formattedIOLRC.WriteLine(Comm);
idnResponse = formattedIOLRC.ReadLine().Replace("\n", "");
idnResponseFetch = idnResponse.Split(new string[] { "," }, StringSplitOptions.None);
return(idnResponseFetch);
//Special Fetch
case "Fetch?[Special]":
string[] idnResponseFetchSpecial;
Comm = "Fetch?";
System.Threading.Thread.Sleep(1000);
formattedIOLRC.WriteLine(Comm);
while (1 == 1)
{
try
{
System.Threading.Thread.Sleep(1000);
idnResponse = formattedIOLRC.ReadLine().Replace("\n", "");
break;
}
catch
{
}
}
idnResponseFetchSpecial = idnResponse.Split(new string[] { "," }, StringSplitOptions.None);
return(idnResponseFetchSpecial);
case "Fetch?[Special2]":
string[] idnResponseFetchSpecial2;
Comm = "Fetch?";
System.Threading.Thread.Sleep(100);
formattedIOLRC.WriteLine(Comm);
System.Threading.Thread.Sleep(100);
idnResponse = formattedIOLRC.ReadLine().Replace("\n", "");
idnResponseFetchSpecial2 = idnResponse.Split(new string[] { "," }, StringSplitOptions.None);
return(idnResponseFetchSpecial2);
}
}
catch (NativeVisaException visaException)
{
return(null);
}
return(null);
}
static void Main(string[] args)
{
// Change this variable to the address of your instrument
string VISA_ADDRESS = "Your instrument's VISA address goes here!";
IMessageBasedSession session = null;
MessageBasedFormattedIO formattedIO;
// Part 1:
//
// Shows the mechanics of how to catch an exception (an error) in VISA.NET when it occurs.
// To stimulate an error, the code will try to open a connection t an instrument at an invalid address...
try
{
// First we'll provide an invalid address and see what error we get
session = GlobalResourceManager.Open("BAD ADDRESS") as IMessageBasedSession;
}
catch (Exception ex)
{
Console.WriteLine("An exception has occurred!\r\n\r\n{0}\r\n", ex.ToString());
// To get more specific information about the exception, we can check what kind of exception it is and add specific error handling code
// In this example, that is done in the ExceptionHandler method
ExceptionHandler(ex);
}
// Part 2:
//
// Stimulate another error by sending an invalid query and trying to read its response.
//
// Before running this part, don't forget to set your instrument address in the 'VISA_ADDRESS' variable at the top of this method
session = GlobalResourceManager.Open(VISA_ADDRESS) as IMessageBasedSession;
formattedIO = new MessageBasedFormattedIO(session);
// Misspell the *IDN? query as *IND?
try
{
formattedIO.WriteLine("*IND?");
}
catch (Exception ex)
{
Console.WriteLine("You'll never get here, because the *IND? data will get sent to the instrument successfully, it's the instrument that won't like it.");
}
// Try to read the response (*IND ?)
try
{
string idnResponse = formattedIO.ReadLine();
Console.WriteLine("*IDN? returned: {0}", idnResponse);
}
catch (IOTimeoutException timeoutException)
{
Console.WriteLine("The ReadLine call will timeout, because the instrument doesn't know what to do with the command that we sent it.");
// Check the instrument to see if it has any errors in its queue
string rawError = "";
int errorCode = -1;
string errorString = "";
while (errorCode != 0)
{
formattedIO.WriteLine("SYST:ERR?");
rawError = formattedIO.ReadLine();
errorCode = int.Parse(rawError.Split(',')[0]);
errorString = rawError.Split(',')[1];
Console.WriteLine("Error code: {0}, error message: {1}", errorCode, errorString.Trim());
}
}
session.Dispose();
Console.WriteLine("\r\nPress any key to exit...");
Console.ReadKey();
}