// ------------------------------------------------------------------------
/// <summary>Disconnect from bus controller.</summary>
public void Disconnect()
{
if (MBmaster != null)
{
MBmaster.Dispose();
MBmaster = null;
BCinfo = null;
}
else
{
return;
}
_connected = false;
RefreshTimer.Change(0, 0);
ReconnectTimer = new Timer(new TimerCallback(ReconnectTimer_Elapsed), this, 10000, 10000);
}
// ------------------------------------------------------------------------
/// <summary>Connect to bus controller.</summary>
/// <param name="ip">IP adress or host name of the X20BC0087 controller.
/// See FAQ section for more information how to determinate the host name.</param>
/// <param name="port">Port number of X20BC0087 controller. Usually port 502 is used.</param>
public void Connect(string ip, ushort port)
{
byte[] result = { };
while (ReconnectTimer != null)
{
Thread.Sleep(100);
}
try
{
MBmaster = new Master(ip, port, false);
MBmaster.OnResponseData += new ModbusTCP.Master.ResponseData(MBmaster_OnResponseData);
MBmaster.OnException += new ModbusTCP.Master.ExceptionData(MBmaster_OnException);
_connected = true;
// Disable boundary check
MBmaster.WriteSingleRegister(MasterBR.ID_boundary, 0, 0x1182, BitConverter.GetBytes((short)IPAddress.HostToNetworkOrder((short)0xC0)), ref result);
// Retry when bus coupler is still booting up retry after 10s
if (result == null)
{
Thread.Sleep(10000);
MBmaster.WriteSingleRegister(MasterBR.ID_boundary, 0, 0x1182, BitConverter.GetBytes((short)IPAddress.HostToNetworkOrder((short)0xC0)), ref result);
if (result == null)
{
_connected = false;
if (MBmaster != null)
{
MBmaster.Dispose();
MBmaster = null;
BCinfo = null;
}
throw new System.Net.Sockets.SocketException();
}
}
// Read module info, disable boundary check
BCinfo = new MasterBR_BCinfo(this);
MasterMDinfo();
dig_in_length = Convert.ToUInt16(BCinfo.process_digital_inp_cnt * 8);
dig_in_buffer = new bool[dig_in_length];
dig_out_length = Convert.ToUInt16(BCinfo.process_digital_out_cnt * 8);
dig_out_buffer = new bool[dig_out_length];
ana_in_length = Convert.ToUInt16(BCinfo.process_analog_inp_cnt);
ana_in_buffer = new int[ana_in_length];
ana_out_length = Convert.ToUInt16(BCinfo.process_analog_out_cnt * 8);
ana_out_buffer = new int[ana_out_length];
}
catch (Exception error)
{
_connected = false;
if (MBmaster != null)
{
MBmaster.Dispose();
MBmaster = null;
BCinfo = null;
}
throw (error);
}
}