public void WriteExample()
{
Console.WriteLine("FYI: WriteExample");
// Create the connection
IPAddress iPAddress = new IPAddress(SETTING_MODBUS_SERVER_TCP_IP);
this.tcpClient = new Socket(iPAddress.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
// Attempt to connect to the Modbus slave.
this.tcpClient.Connect(new IPEndPoint(iPAddress, SETTING_MODBUS_SERVER_TCP_PORT));
// We are connected.
Console.WriteLine("FYI: Connected to IP address=[{0}]", this.tcpClient.RemoteEndPoint.ToString());
System.UInt16[] data = new System.UInt16[SETTING_MODBUS_CLIENT_LENGTH];
data[0] = 99;
data[1] = 150;
data[2] = 306;
System.Byte exceptionCode;
unsafe
{
// Set some unmanaged memory up.
IntPtr unmanagedPointer = Marshal.AllocHGlobal(SETTING_MODBUS_CLIENT_LENGTH);
CopyBytesIntoPointer(data, unmanagedPointer);
// Send the message
Console.WriteLine("FYI: Sending WriteRegisters message");
uint resultWriteRegisters = CASModbusAdapter.WriteRegisters(1, SETTING_MODBUS_CLIENT_DEVICE_ID, CASModbusAdapter.FUNCTION_10_FORCE_MULTIPLE_REGISTERS, SETTING_MODBUS_CLIENT_ADDRESS, unmanagedPointer, (ushort)(data.Length * sizeof(System.UInt16)), &exceptionCode);
Marshal.FreeHGlobal(unmanagedPointer);
this.tcpClient.Close();
// Print the results.
if (resultWriteRegisters == CASModbusAdapter.STATUS_SUCCESS)
{
Console.WriteLine("Write was successful.");
}
else if (resultWriteRegisters == CASModbusAdapter.STATUS_ERROR_MODBUS_EXCEPTION)
{
Console.WriteLine("Modbus.Exception={0}", exceptionCode);
}
else
{
Console.WriteLine("ModbusStack.Error={0}", resultWriteRegisters);
}
}
}
public void WriteExample()
{
Console.WriteLine("FYI: WriteExample");
System.UInt16[] data = new System.UInt16[SETTING_MODBUS_CLIENT_LENGTH];
data[0] = 99;
data[1] = 150;
data[2] = 306;
System.Byte exceptionCode;
unsafe
{
// Set some unmanaged memory up.
IntPtr unmanagedPointer = Marshal.AllocHGlobal(SETTING_MODBUS_CLIENT_LENGTH);
CopyBytesIntoPointer(data, unmanagedPointer);
// Send the message
Console.WriteLine("FYI: Sending WriteRegisters message");
uint resultWriteRegisters = CASModbusAdapter.WriteRegisters(1, SETTING_MODBUS_CLIENT_DEVICE_ID, CASModbusAdapter.FUNCTION_10_FORCE_MULTIPLE_REGISTERS, SETTING_MODBUS_CLIENT_ADDRESS, unmanagedPointer, (ushort)(data.Length * sizeof(System.UInt16)), &exceptionCode);
Marshal.FreeHGlobal(unmanagedPointer);
// Print the results.
if (resultWriteRegisters == CASModbusAdapter.STATUS_SUCCESS)
{
Console.WriteLine("Write was successful.");
}
else if (resultWriteRegisters == CASModbusAdapter.STATUS_ERROR_MODBUS_EXCEPTION)
{
Console.WriteLine("Modbus.Exception={0}", exceptionCode);
}
else
{
Console.WriteLine("ModbusStack.Error={0}", resultWriteRegisters);
}
}
}
