public ModbusConnector(ModbusCfg mb)
{
Port = mb.Port;
IPAddress = mb.Address;
FreqReadSec = mb.Freq;
_myMbState = MbState.CREATING_MB_SOCKET;
_alarmList = new List <MeasurePoint>();
_alarmOldList = new List <MeasurePoint>();
InitializeAlarmOldList(); // Populate buffer list with alarms 0 (not active)
}
public void ModbusConnectorThread()
{
while (true)
{
switch (_myMbState)
{
case MbState.CREATING_MB_SOCKET:
if (Connect())
{
#if !DEMO
IsConnected = true;
_myMbState = MbState.CONNECTION_MB_ESTABLISHED;
// Start threads
_dataRetrievingThread = new Thread(DataRetrievingThread);
_dataRetrievingThread.IsBackground = true;
_alarmRetrievingThread = new Thread(AlarmRetrievingThread);
_alarmRetrievingThread.IsBackground = true;
_dataRetrievingThread.Start();
_alarmRetrievingThread.Start();
#else
IsConnected = true;
_myMbState = MbState.CONNECTION_MB_ESTABLISHED;
_dataRetrievingThread = new Thread(DataRetrievingThread);
_dataRetrievingThread.IsBackground = true;
_dataRetrievingThread.Start();
#endif
}
else
{
IsConnected = false;
if (_master != null)
{
_master.Dispose();
}
if (_client != null)
{
_client.Close();
}
System.Threading.Thread.Sleep(5000); // Re-try to connect after 5 seconds
}
break;
case MbState.CONNECTION_MB_ESTABLISHED:
#if !DEMO
if (_dataRetrievingThread.ThreadState == ThreadState.Stopped ||
_alarmRetrievingThread.ThreadState == ThreadState.Stopped)
{
_dataRetrievingThread.Abort();
_dataRetrievingThread = null;
_alarmRetrievingThread.Abort();
_alarmRetrievingThread = null;
IsConnected = false;
ErrorEvent?.Invoke(this, null);
if (_master != null)
{
_master.Dispose();
}
if (_client != null)
{
_client.Close();
}
_myMbState = MbState.CREATING_MB_SOCKET;
}
#else
if (_dataRetrievingThread.ThreadState == ThreadState.Stopped)
{
_dataRetrievingThread.Abort();
_dataRetrievingThread = null;
IsConnected = false;
ErrorEvent?.Invoke(this, null);
if (_master != null)
{
_master.Dispose();
}
if (_client != null)
{
_client.Close();
}
_myMbState = MbState.CREATING_MB_SOCKET;
}
#endif
break;
}
System.Threading.Thread.Sleep(100);
}
}
