    LaunchPort   = 9877;
    ServerObject = OPI_TCP.StartServer(LaunchPort);

    // Send message from client
    ConnectionAddress = "127.0.0.1:9877";
    ClientObject = OPI_TCP.CreateConnection(ConnectionAddress);

    If Not OPI_TCP.IsClientObject(ClientObject) Then
        Raise OPI_Tools.JSONString(ClientObject);
    Else
        Message = "Hello from client!" + Chars.LF;
        OPI_TCP.SendLine(ClientObject, Message);
    EndIf;

    // Receive message on server
    Result = OPI_TCP.GetNextConnectionData(ServerObject, 5000, 8192);