Errors M409 and Warning: Commands is not supported

Aitor

Good morning everyone,

I am getting errors in PanelDue when printing. These errors do not appear in WebControl.

I have tested them in the following way:
Duet2Wifi + Duex5 RRF3.3 DWC3.3
On the PanelDue5i I tested the following firmwares
PanelDue R3.3 RC4
PanelDue R3.3 RC3
PanelDue R3.2.11

In all cases the errors and warnings were displayed.

On the other hand I tried printing with the 4-wire cable and the 10-wire cable.
Both cables are very long about 1,8m, however some machines do not show this error with the same cable length.
On the other hand I have tried to print from the SD card and from the internal card of the duet, in both cases the errors are displayed.
To print from the external SD card I use an external card holder connected to CONN_SD, because with such a long cable the data did not arrive well, leaving the PanelDue connected with the 4-wire cables.
I have tried to print only with the 4-wire cables, without anything else connected.

I don't know what more tests to do, what can these errors be due to?
I think that the long cable could be the problem, but I have no other choice, could I put some kind of filter?
If it's not the cable, since it doesn't happen on some machines, what could it be due to?

Thanks in advance
Best regards

Phaedrux

Can you measure the resistance of each cable in your 4 wire cable?

https://duet3d.dozuki.com/Wiki/Connecting_an_LCD_control_panel#Section_Option_1_4_way_cable

dc42

@Aitor does the PanelDue cable run close to any stepper motor cables?

Aitor

Good morning @PHAEDRUX and @dc42,

I have measured the wires and they give me 0.126 ohm, these have a splice, so I will try to make a whole cable and that does not exceed 0.1ohm as it says in the documentation.

On the other hand, this cable only passes near a cable connected to fan2, for a led strip, but I had already tried disconnecting it and moving it away from any cable, in case interference was transmitted.

I will try with a cable with less resistance and I will let you know if it has been solved.

Thanks
Best regards

Aitor

Good morning @PHAEDRUX and @dc42,

I've done more tests and I'm still getting errors, but I have the feeling that less than before.

One of the tests I have done with a whole cable of 0.089 ohm, this one has given me errors despite having it outside the machine.

I have also tried to change the URXD0 and UTXD0 cables for thinner telephone cables (not shielded) that have 0.085 ohm, this is when I have had the feeling that the errors decreased, but I am not sure.

I have ordered by Internet, cable of 4 telephone wires with these characteristics:

Type of shielding Al/PET
Outer sheath material PVC
Core Strands 1/0.51 mm
American Wire Gauge AWG 24 AWG

Can I use it to power PanelDue5i? What is the power consumption of PanelDue?

When it arrives I will test it and let you know, if you can think of any test I can do or any recommendation, I will be happy to do it for you.

Best regards and thanks

NOTE: I'm sorry, my English is null and I think it is not expressed as I would like, I hope you understand what I write.

Aitor

Good morning @PHAEDRUX and @dc42 ,

I got the cable last week, and I haven't seen the errors on the screen again.

Anyway, I don't know if it was the cable that solved the error, as a resistance cable (heater E0) had broken and was making contact with the structure, so I think the interference could be due to this.

Best regards and thanks for your help

mfs12

Hey @Aitor , thanks for reporting back. It sounds very likely that it was related to the cable. Especially when it happens sporadicaly.