Access via additionally connected hardware possible through external program? iiwa 14 R820

public class BackgroundTask extends RoboticsAPIBackgroundTask {
    @Inject
    private Controller    cabinet;
    @Inject
    private MediaFlangeIOGroup mfio;

    @Override
    public void initialize() {
    }

    @Override
    public void run() {
        EtherNetComm etc = new EtherNetComm( ip, whateverNeeded... );
        etc.start();
        
        while ( true ) {
            String msg = etc.receiveString();
            int key = parse(msg);
            switch ( key ) {
            case 0:
                mfio.setOutputX3Pin1( true );
                break;
            case 1:
                mfio.setOutputX3Pin1( false );
                break;
            }    // end of switch-case
        }    // end of while
    }    // end of run()
}    // end of class