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    Duet3/pi DCS is unavailable after wiring 24V

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    Duet Hardware and wiring
    duet 3 rasberry pi
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    • fractalengineerundefined
      fractalengineer
      last edited by

      Wow @bearer you absolutely killed it

      552be438-6564-465f-9b82-ecd892c089c8-image.png

      Thank you everyone!

      Railcore II ZL

      A Former User? 1 Reply Last reply Reply Quote 0
      • A Former User?
        A Former User @fractalengineer
        last edited by

        @fractalengineer said in Duet3/pi flashing Diag LED after wiring 24V DCS is unavailable:

        you absolutely killed it

        ...again with the jokes, but technically you killed it, i fixed it, or put a band aid on it at least ...

        volcano insurance ftw!

        fractalengineerundefined 1 Reply Last reply Reply Quote 1
        • Danalundefined
          Danal
          last edited by

          WHOO HOOO! As a mostly bystander, congrats to @bearer for all the "figurin" and to @fractalengineer who now has a running machine.

          @fractalengineer, now the fun REALLY starts!

          Delta / Kossel printer fanatic

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          • fractalengineerundefined
            fractalengineer @A Former User
            last edited by

            @bearer lol yess

            I was thinking for a neater build would it make sense to swap the 22 and 18 wires like so?

            efb6f53a-76ca-4dfc-bdc2-e80289d59138-image.png

            Railcore II ZL

            A Former User? 1 Reply Last reply Reply Quote 0
            • A Former User?
              A Former User @fractalengineer
              last edited by A Former User

              @fractalengineer said in Duet3/pi flashing Diag LED after wiring 24V DCS is unavailable:

              @bearer lol yess

              I was thinking for a neater build would it make sense to swap the 22 and 18 wires like so?

              Its a neat idea, but i'd trim a bit off to avoid reterminating the idc where the insulation is already displaced

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              • dc42undefined
                dc42 administrators
                last edited by dc42

                This way (as on the Duet 2 automated test equipment prototype on my desk) avoids having to disturb the IDC connectors:

                2020-04-25 21.28.29.jpg

                Duet WiFi hardware designer and firmware engineer
                Please do not ask me for Duet support via PM or email, use the forum
                http://www.escher3d.com, https://miscsolutions.wordpress.com

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                • MaxGyverundefined
                  MaxGyver
                  last edited by

                  Hey all,

                  I have the same "DCS is unavailable" issue with my Duet 3 v1.0 and RPI 4.

                  Do I understand correctly that swapping wires 22 and 18 on the ribbon cable will fix this issue ?
                  I have installed the lastest DuetPI version on my RPI and also reflashed my Duet3 with RRF 3 Release 3.01-RC12.

                  Cheers Max

                  A Former User? Phaedruxundefined 2 Replies Last reply Reply Quote 0
                  • A Former User?
                    A Former User @MaxGyver
                    last edited by

                    @MaxGyver said in Duet3/pi flashing Diag LED after wiring 24V DCS is unavailable:

                    Do I understand correctly that swapping wires 22 and 18 on the ribbon cable will fix this issue ?

                    In general probaly no, pretty spescial case with a damaged raspberry pi, you can test it using the same tools as described in the thread.

                    More likely RRF and DSF is out of sync, which version of DSF are you using - if you just downloaded the DuetPi image it will be using an old stable version not compatible with RRF 3.01-RC12. Switch to unstable package feed or downgrade RRF to 3.0 release.

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                    • Phaedruxundefined
                      Phaedrux Moderator @MaxGyver
                      last edited by

                      @MaxGyver Best to start a new thread to fully diagnose your issue.

                      Z-Bot CoreXY Build | Thingiverse Profile

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                      • MaxGyverundefined
                        MaxGyver
                        last edited by

                        @bearer @Phaedrux

                        I have solved the issue by installing the unstable version (DSF Version: 2.1.3) of Duet Software Framework on Raspberry Pi. and also reverting back to RC11

                        The guide links to the stable version of the DSF and latest version of the reprap firmware which, at least in my case is not compatible and will lead to the "DCS is unavailable" Error.

                        cheers Max

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