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    M304 bug?

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    • TickTockundefined
      TickTock
      last edited by

      Whenever I try to set the bed PID parameters I get an error response which sounds like it thinks I am sending an M305 command instead of M304:

      M304 P100 I50 D150
      Error: M304: Invalid bed heater index '100

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by

        What happens if you specify a heater target with H?

        Never mind, I was thinking of M301.

        Z-Bot CoreXY Build | Thingiverse Profile

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        • dc42undefined
          dc42 administrators
          last edited by

          @TickTock:

          Whenever I try to set the bed PID parameters I get an error response which sounds like it thinks I am sending an M305 command instead of M304:

          M304 P100 I50 D150
          Error: M304: Invalid bed heater index '100

          There was a bug fix to M304 in release 1.21. Are you running older firmware?

          However, we recommend that you normally use M303 to find the heater model, or M307 to enter the model parameters manually. Either way, two sets of PID parameters will be generated from the model. Even if you use M304 to define the PID constants, you still need to provide a heater model for the temperature fault detection to work properly.

          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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          • TickTockundefined
            TickTock
            last edited by

            Looks like I am on 1.20.

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