PLCcom for S7 - symbolic S7 access for .net and java developers

            ' Create a device instance
            Dim tlsDevice As New Tls13Device("192.168.1.100")

            ' Connect
            Dim connectResult As ConnectResult = tlsDevice.Connect()

            Dim writeVariables As New List(Of PlcCoreVariable)()

            ' IMPORTANT TODO FOR YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
            ' Before you can write, you need the imported variable. Either you have
            ' determined it by a read operation or you have PLCCom output the empty
            ' variable (without values)
            Dim variableBody = tlsDevice.GetEmptyVariableBody("DataBlock_1.ByteValue")

            ' Set the value and add the variable to the write list
            variableBody.Value = 1
            writeVariables.Add(variableBody)

            variableBody = tlsDevice.GetEmptyVariableBody("DataBlock_1.RealValue")
            variableBody.Value = 123.456F
            writeVariables.Add(variableBody)

            ' create a write request
            Dim writeRequest As New WriteSymbolicRequest(writeVariables)

            ' write to device
            Console.WriteLine("begin write...")
            Dim writeResult = tlsDevice.WriteData(writeRequest)

            ' evaluate results
            If writeResult.Quality = OperationResult.eQuality.GOOD Then
                Console.WriteLine("write successfull!")
            Else
                Console.WriteLine("write not successfull! Message: " & writeResult.Message)
            End If

		//create a new device instance
		Tls13Device tlsDevice = new Tls13Device("192.168.1.100");

		// connect
		ConnectResult connectResult = tlsDevice.connect();

		// create a list of variables for writing
		List writeVariables = new ArrayList();

		/*
		* Before you can write, you need the imported variable. Either you have
		* determined it by a read operation or you have PLCCom output the empty
		* variable (without values)
		*/
		var variableBody = tlsDevice.getEmptyVariableBody("Datenbaustein_1.ByteValue");
		// Set the value and add the variable to the write list
		variableBody.setValue(1);
		writeVariables.add(variableBody);

		variableBody = tlsDevice.getEmptyVariableBody("Datenbaustein_1.RealValue");
		// Set the value and add the variable to the write list
		variableBody.setValue(123.456f);
		writeVariables.add(variableBody);

		// create a write request
		WriteSymbolicRequest writeRequest = new WriteSymbolicRequest(writeVariables);

		// write to device
		var writeResult = tlsDevice.writeData(writeRequest);

		// evaluate results
		if (writeResult.getQuality() == OperationResult.eQuality.GOOD)
			System.out.println("write successfull!");
		else 
			System.out.println("write not successfull! Message: " + writeResult.getMessage());