public bool Connect()
{
try
{
if (session != null)
{
Dispose();
}
session = Tuxeip_Class.OpenSession(_ip);
byte[] path = new byte[] { _rack, _slot };
if (session != null)
{
int res = Tuxeip_Class._RegisterSession(session);
connection = Tuxeip_Class.ConnectPLCOverCNET(session, Plc_Type.LGX, path);
}
return(session != null && connection != null);
}
catch (Exception error)
{
if (OnError != null)
{
OnError(this, new IOErrorEventArgs(error.Message));
}
return(false);
}
}
public int WriteUInt16(DeviceAddress address, ushort value)
{
if (IsClosed)
{
return(-1);
}
return(Tuxeip_Class._WriteLgxData(session, connection, GetAddress(address), LGX_Data_Type.LGX_INT, &value, 1));
}
public int WriteFloat(DeviceAddress address, float value)
{
if (IsClosed)
{
return(-1);
}
return(Tuxeip_Class._WriteLgxData(session, connection, GetAddress(address), LGX_Data_Type.LGX_REAL, &value, 1));
}
public int WriteBits(DeviceAddress address, byte bits)
{
if (IsClosed)
{
return(-1);
}
return(Tuxeip_Class._WriteLgxData(session, connection, GetAddress(address), LGX_Data_Type.LGX_SINT, &bits, 1));
}
public int WriteBit(DeviceAddress address, bool bit)
{
if (IsClosed)
{
return(-1);
}
return(Tuxeip_Class._WriteLgxData(session, connection, GetAddress(address), LGX_Data_Type.LGX_BOOL, &bit, 1));
}
public unsafe int WriteBytes(DeviceAddress address, byte[] bit)
{
if (IsClosed)
{
return(-1);
fixed(void *b = bit)
{
return(Tuxeip_Class._WriteLgxData(session, connection, GetAddress(address), LGX_Data_Type.LGX_BITARRAY, b, 1));
}
}
public ItemData <ushort> ReadUInt16(DeviceAddress address)
{
if (IsClosed)
{
return(new ItemData <ushort>(0, 0, QUALITIES.QUALITY_NOT_CONNECTED));
}
else
{
LGX_Read *data = Tuxeip_Class._ReadLgxData(session, connection, GetAddress(address), 1);
return(new ItemData <ushort>((ushort)Tuxeip_Class._GetLGXValueAsInteger(data, 0), 0, QUALITIES.QUALITY_GOOD));
}
}
public ItemData <bool> ReadBit(DeviceAddress address)
{
if (IsClosed)
{
return(new ItemData <bool>(false, 0, QUALITIES.QUALITY_NOT_CONNECTED));
}
else
{
LGX_Read *data = Tuxeip_Class._ReadLgxData(session, connection, GetAddress(address), 1);
return(new ItemData <bool>(Tuxeip_Class._GetLGXValueAsInteger(data, 0) > 0, 0, QUALITIES.QUALITY_GOOD));
}
}
public void Dispose()
{
if (connection != null)
{
Tuxeip_Class._Forward_Close(connection);
}
if (session != null)
{
Tuxeip_Class._UnRegisterSession(session);
}
Tuxeip_Class.CloseSession(session);
Marshal.FreeCoTaskMem((IntPtr)connection);
Marshal.FreeCoTaskMem((IntPtr)session);
connection = null;
session = null;
}
public float[] ReadFloatArray(DeviceAddress address, ushort size)
{
if (IsClosed)
{
return(null);
}
else
{
float[] buffer = new float[size]; address.VarType = DataType.FLOAT; var addr = GetAddress(address);
LGX_Read *data = Tuxeip_Class._ReadLgxData(session, connection, addr, size);
if (data != null && data->Varcount > 0)
{
for (int i = 0; i < data->Varcount; i++)
{
buffer[i] = Tuxeip_Class._GetLGXValueAsFloat(data, i);
}
data = null;
return(buffer);
}
connection = null;
return(null);
}
}
