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    Some parts of DCS are broken in v3.4.0?

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    • Marcossfundefined
      Marcossf
      last edited by

      Hello everyone,

      We use a Repetier Server frontend to communicate with DCS through the interceptor RS implemented in their 1.1.0 server version which was fully working in RRF 3.3 in SBC mode.

      This way we have access to DWC on ex:192.168.2.100:3000 for advanced and tech support and Repetier Server on 192.168.2.100:3344 for enduser limited enviromental though a bidirectional communication between them through the serial port shared by both Duet and SBC boards. 6HC is conected with the flat cable to the RPI.

      This was fully functional in RRF3.3, but with 3.4 it no longer works.

      This is a console example of the behaviour from RS:

      Send:12:05:16.916: N43 M105
Send:12:05:17.913: N44 M105
Send:12:05:18.905: N45 M105
Send:12:05:19.896: N46 M105
Send:12:05:20.888: N47 M105
Send:12:05:21.880: N48 M105
Send:12:05:22.873: N49 M105
Send:12:05:23.865: N50 M105
Send:12:05:24.857: N51 M105
Send:12:05:25.849: N52 M105
Send:12:05:26.840: N53 M105
Send:12:05:27.831: N54 M105
Send:12:05:28.823: N55 M105
Send:12:05:29.821: N56 M105
Send:12:05:30.817: N57 M105
Send:12:05:31.813: N58 M105
Send:12:05:32.803: N59 M105
Send:12:05:33.793: N60 M105
Send:12:05:34.789: N61 M105
Recv:12:05:42.686: The height map was loaded when the current Z=0 datum was not determined. This may result in a height offset. Height map loaded from file heightmap.csv (2)
Recv:12:05:53.091: pos absolute true
Recv:12:06:00.952: pos relative true
Recv:12:06:09.389: X:0.000 Y:0.000 Z:20.010 E:0.000 E0:-0.0 E1:-0.0 E2:-0.0 Count 0 0 2003 Machine 0.000 0.000 20.010 Bed comp 0.000 (2)
Recv:12:06:12.041: pos relative true
Recv:12:06:12.063: pos absolute true
Recv:12:06:12.484: X:0.000 Y:0.000 Z:79.748 E:0.000 E0:-0.0 E1:-0.0 E2:-0.0 Count 0 0 7984 Machine 0.000 0.000 79.748 Bed comp 0.000 (2)
Recv:12:06:12.557:
Mesg:12:07:05.794: Warning: Communication timeout - resetting communication buffer.
Mesg:12:07:05.794: Connection status: Buffered:288, Manual Commands: 5, Job Commands: 0
Mesg:12:07:05.794: Buffer used:288 Enforced free byte:9 lines stored:32
Send:12:07:05.794: N62 M114
Send:12:07:05.795: N63 M114
Send:12:07:05.795: N64 M114
Send:12:07:05.795: N65 M114
Send:12:07:05.795: N66 M105
Send:12:07:05.795: N67 M105
Recv:12:07:05.869: ok T0:24.1 /0.0ok T0:24.1 /0.0 T1:24.4 /0.0 T2:24.7 /0.0ok T0:24.0 /0.0 T1:24.4 /0.0 T2:24.7 /0.0 B:23.4 /0.0 C:22.9 /0.0ok T0:23.9 /0.0 T1:24.6 /0.0 T2:24.5 /0.0 B:23.4 /0.0 C:22.7 /0.0ok T0:24.1 /0.0 T1:24.3 /0.0 T2:24.7 /0.0 B:23.3 /0.0 C:22.8 /0.0ok T0:24.0 /0.0 T1:24.4 /0.0 T2:24.7 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:23.9 /0.0 T1:24.6 /0.0 T2:24.5 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:24.1 /0.0 T1:24.4 /0.0 T2:24.7 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:23.9 /0.0 T1:24.6 /0.0 T2:24.5 /0.0 B:23.3 /0.0 C:22.8 /0.0ok T0:23.9 /0.0 T1:24.6 /0.0 T2:24.5 /0.0 B:23.3 /0.0 C:22.8 /0.0ok T0:24.0 /0.0 T1:24.5 /0.0 T2:24.6 /0.0 B:23.3 /0.0 C:22.8 /0.0ok T0:24.1 /0.0 T1:24.3 /0.0 T2:24.7 /0.0 B:23.4 /0.0 C:22.9 /0.0ok T0:23.9 /0.0 T1:24.6 /0.0 T2:24.6 /0.0 B:23.3 /0.0 C:22.8 /0.0ok T0:23.9 /0.0 T1:24.6 /0.0 T2:24.5 /0.0 B:23.3 /0.0 C:22.8 /0.0ok T0:24.1 /0.0 T1:24.3 /0.0 T2:24.7 /0.0 B:23.3 /0.0 C:22.8 /0.0ok T0:24.1 /0.0 T1:24.3 /0.0 T2:24.7 /0.0 B:23.4 /0.0 C:22.9 /0.0ok T0:23.9 /0.0 T1:24.6 /0.0 T2:24.5 /0.0 B:23.3 /0.0 C:22.7 /0.0ok T0:23.9 /0.0 T1:24.5 /0.0 T2:24.5 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:24.1 /0.0 T1:24.3 /0.0 T2:24.7 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:24.0 /0.0 T1:24.6 /0.0 T2:24.6 /0.0 B:23.3 /0.0 C:22.8 /0.0ok T0:23.9 /0.0 T1:24.6 /0.0 T2:24.5 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:24.1 /0.0 T1:24.2 /0.0 T2:24.7 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:24.1 /0.0 T1:24.3 /0.0 T2:24.7 /0.0 B:23.3 /0.0 C:22.8 /0.0ok T0:23.9 /0.0 T1:24.6 /0.0 T2:24.5 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:23.9 /0.0 T1:24.5 /0.0 T2:24.5 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:24.1 /0.0 T1:24.3 /0.0 T2:24.8 /0.0 B:23.3 /0.0 C:22.8 /0.0ok T0:24.0 /0.0 T1:24.5 /0.0 T2:24.5 /0.0 B:23.4 /0.0 C:22.9 /0.0ok T0:24.0 /0.0 T1:24.3 /0.0 T2:24.6 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:24.1 /0.0 T1:24.2 /0.0 T2:24.8 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:23.9 /0.0 T1:24.4 /0.0 T2:24.6 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:23.9 /0.0 T1:24.4 /0.0 T2:24.6 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:24.2 /0.0 T1:24.2 /0.0 T2:24.8 /0.0 B:23.4 /0.0 C:22.9 /0.0ok T0:24.1 /0.0 T1:24.2 /0.0 T2:24.8 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:24.0 /0.0 T1:24.4 /0.0 T2:24.6 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:24.0 /0.0 T1:24.3 /0.0 T2:24.7 /0.0 B:23.4 /0.0 C:22.9 /0.0ok T0:24.1 /0.0 T1:24.2 /0.0 T2:24.8 /0.0 B:23.3 /0.0 C:22.8 /0.0ok T0:24.0 /0.0 T1:24.4 /0.0 T2:24.6 /0.0 B:23.2 /0.0 C:22.8 /0.0ok T0:24.0 /0.0 T1:24.4 /0.0 T2:24.6 /0.0 B:23.4 /0.0 C:22.8 /0.0ok T0:24.1 /0.0 T1:24.2 /0.0 T2:24.8 /0.0 B:23.3 /0.0 C:22.8 /0.0ok T0:24.1 /0.0 T1:24.2 /0.0 T2:24.8 /0.0 B:23.3 /0.0 C:22.8 /0.0X:0.000 Y:0.000 Z:79.748 E:0.000 E0:-0.0 E1:-0.0 E2:-0.0 Count 0 0 7984 Machine 0.000 0.000 79.748 Bed comp 0.000
Recv:12:07:05.871: ok
Recv:12:07:05.871: X:0.000 Y:0.000 Z:79.748 E:0.000 E0:-0.0 E1:-0.0 E2:-0.0 Count 0 0 7984 Machine 0.000 0.000 79.748 Bed comp 0.000
Recv:12:07:05.871: ok
Recv:12:07:05.872: X:0.000 Y:0.000 Z:79.748 E:0.000 E0:-0.0 E1:-0.0 E2:-0.0 Count 0 0 7984 Machine 0.000 0.000 79.748 Bed comp 0.000
Recv:12:07:05.872: ok

      You can see that the M105 queries get no "ok“ response directly.
      Only once other gcode is sent an "ok“ with a return gets sent and all is received.

      The problem is that the M105 responses have no final new line ("\n“) so it does not get sent to server, And then we get a command block, which is handled as one command, so it stop the commands being sent until timeout. Then it starts again.

      So most essential is to make M105 answer add a return at end of line as the standard requires. M114 for example does that, and other commands as well.
      When issued the commands from DWC use a different channel and method communicating with DCS and DCS probably does not use the same communication method than before in RRF3.3.
      Repetier guys develop the comunication on a marlin compatible channel listing that in theory should provide same communication as direct usb connection for better standarization and use the DSF socket conection.

      883ba593-f347-480b-b7d1-0ccca9eb6ed1-image.png

      This used to work previously so I guess it was broken it unexpectedly.

      Can you please check this problem, help to troubleshoot and if possible fix it soon?

      1 Reply Last reply Reply Quote 0
      • chrishammundefined
        chrishamm administrators
        last edited by

        @marcossf Thanks for the note, it will be fixed in the upcoming v3.4-b5.

        Duet software engineer

        1 Reply Last reply Reply Quote 2
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