LOGO!8_tcp_stream

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I am currently busy with researching the ethernet communication options of a logo8 PLC. But with a network scan using Wireshark I see a communication that is more or less a TCP stream when followed you can see elements of the written program but also a lot of blank spaces does anyone know which higher protocol is used for this is it similar as a Tia portal to PLC connection?

Down below a few sentences out the TCP stream

K...........GetHWType....'..K..`.............K...........GetHWId......'..K .`..............K...........CheckState...'..K..`.............K...........CheckState...'..K..`.............K...........GetVersion...'..K .`..............K...........GetPrgHead...'..K..`..................}...J.....Uihu...\Uihu...\Uihu...\Uihu...\K...........CheckState...'..K..`.............K...........HasHoursCnt..'..K..`.............K...........GetAiCnt.....'..K..`.............K...........CheckMS......'..KP.`.................KP..........StartDown....'......];._.K..`............K.0.........InDown.......'................;.E.2LUihu...\Uihu...\Uihu...\Uihu...\...................................                ..
........................................................................................................off                             .............aantal werks                    .............tukken                          .............                                .............                                .............                                .............ON start                        .............feed in                         .............                                .............                                .............                                .............                                ...K@.`................K.0.........InDown.......'................feed                            .............                                .............                                .............                                .............                                .............                                .............Return                          .............                                .............                                .............                                .............                                .............                                .............cooling down                    .............off in                          .............                                .............                                .............      K@.`................K.0.........InDown.......'......                          .............                                .............trip                            .............no fault?                       .............press reset                     .............                                .............                                .............                                ...........................................................................................................................................................................................................................................................................................................................................................................................................K@.`................K.0.........InDown.......'......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................K@.`................K.0.........InDown.......'...............................................................................................................................................................................................................................................................................................................................................