Hello,
All the application work correctly, and acquisition is correcte.
I'm tested it with NI simulated daqmx device and I'm not problem.
I'm used a similar code (same acquisition) with DAQmx 8.6 and I'm nothing problem.
I'm tested it in 9.7 and 9.8 on windows XP and windows 7 with Framework 3.5, 4.0 and 4.5 but I'm always the same error.
This is my init code:
private Task task = null;
private AILine line = null;
private mainFrame parent = null;
private TcpClient client = null;
AnalogMultiChannelReader reader = null;
private AsyncCallback myCallBack = null;
public void run()
{
try
{
System.Console.WriteLine("AcquisitionAI");
task = new Task(line.line.Replace("/", "").Replace(",", ""));
task.AIChannels.CreateVoltageChannel(line.line, "", AITerminalConfiguration.Differential, line.min, line.max, AIVoltageUnits.Volts);
task.Timing.ConfigureSampleClock(null, line.rate, SampleClockActiveEdge.Rising, (line.mode == AILine.Mode.Finite)?SampleQuantityMode.FiniteSamples:SampleQuantityMode.ContinuousSamples, line.samples);
if (line.pretriger > 0)
{
task.Triggers.ReferenceTrigger.ConfigureAnalogEdgeTrigger(line.trigger, (line.triggerslope == AILine.Slope.Rising) ? AnalogEdgeReferenceTriggerSlope.Rising : AnalogEdgeReferenceTriggerSlope.Falling, line.valTrigger, line.pretriger);
}
else
{
task.Triggers.StartTrigger.ConfigureAnalogEdgeTrigger(line.trigger, (line.triggerslope == AILine.Slope.Rising) ? AnalogEdgeStartTriggerSlope.Rising : AnalogEdgeStartTriggerSlope.Falling, line.valTrigger);
}
task.Control(TaskAction.Verify);
task.Start();
reader = new AnalogMultiChannelReader(task.Stream);
myCallBack = new AsyncCallback(AnalogiqueReadCallback);
reader.SynchronizeCallbacks = true;
reader.BeginReadMultiSample(line.samples, myCallBack, task);
parent.Invoke(parent.m_DelegateSetAI, new Object[]{true, line});
parent.Invoke(parent.m_DelegateAddLog, new Object[] { "Start Acquisition AI" });
}
catch (Exception e)
{
parent.Invoke(parent.m_DelegateSetAI, new Object[] { false, line });
Trace.TraceError(DateTime.Now + " : (ThAcquisitionAI:run) line: " + line + " " + e.Message);
try { client.Client.Send(System.Text.Encoding.ASCII.GetBytes("<Comm><Error line='"+line.line+"'>" + e.Message + "</Error></Comm>")); }
catch (Exception) { }
parent.Invoke(parent.m_DelegateAddLog, new Object[] { "" });
parent.Invoke(parent.m_DelegateAddLog, new Object[] { "============== ERROR =============="});
parent.Invoke(parent.m_DelegateAddLog, new Object[] { "Run Acquisition AI Error:"});
foreach (string str in e.Message.Split("\n".ToCharArray()))
{
parent.Invoke(parent.m_DelegateAddLog, new Object[] { str });
}
parent.Invoke(parent.m_DelegateAddLog, new Object[] { "===================================" });
parent.Invoke(parent.m_DelegateAddLog, new Object[] { "" });
}
}
and the function receive
public void AnalogiqueReadCallback(IAsyncResult ar)
{
try
{
if (task == ar.AsyncState)
{
double[,] value = reader.EndReadMultiSample(ar);
if (value.Length != 0)
{
if (client != null)
{
string[] lines = line.line.Split(",".ToCharArray());
for (int i = 0; i < value.GetLength(0); i++)
{
string values = "";
for (int j = 0; j < value.GetLength(1); j++)
{
values += value[i, j] + ";";
}
client.Client.Send(System.Text.Encoding.ASCII.GetBytes("<Comm><Result num='" + num + "' line='" + line.line.Substring(0, line.line.IndexOf('/') + 1) + "ai" + i + "' value='" + values.Substring(0, values.Length - 1) + "'/></Comm>"));
}
}
}
task.Stop();
if ((task != null) && (client.Connected))
{
task.Start();
reader.BeginReadMultiSample(line.samples, myCallBack, task);
}
}
}
catch (DaqException e)
{
if (e.Error == -200284) // All sample not acquire
{
try
{
task.Stop();
task.Start();
reader.BeginReadMultiSample(line.samples, myCallBack, task);
}
catch (NullReferenceException)
{
}
catch (ObjectDisposedException)
{
}
}
else if (e.Error == -200088) // Abort
{
parent.Invoke(parent.m_DelegateAddLog, new Object[] { "Abort: " + e.Message });
}
else if (e.Error == -88710) // Abort
{
parent.Invoke(parent.m_DelegateAddLog, new Object[] { "Abort: " + e.Message });
}
else
{
parent.Invoke(parent.m_DelegateAddLog, new Object[] { "Restart error: " + e.Message });
try { client.Client.Send(System.Text.Encoding.ASCII.GetBytes("<Comm><Error line='" + line.line + "'>" + e.Message + "</Error></Comm>")); }
catch (Exception) { }
}
}
catch (Exception e)
{
parent.Invoke(parent.m_DelegateAddLog, new Object[] { "Read AI error: " + e.Message });
Trace.TraceError(DateTime.Now + " : (ThAcquisitionAI:AnalogiqueReadCallback) " + e.Message);
}
}
Thanks for your help
