CanBus Problems

Surtz

Greetings Everyone,
I'm hoping someone can point me in the right direction, my printer is a self design, based on the Voron Trident, the main board
is a Duet 3 Mini 5+ WiFi with a Duet 3 Roto ToolBoard and a PanelDue 5.

The Mini 5 and the Roto both have the latest firmware and they are talking to each other, the extruder works, the fans work, I've been able to do a PID tune on the hotend, but I am have trouble with the X & Y endstops.

The endstops are micro switches and wired for normally closed and they are connected to io1 and io2 on the Roto board, one lead connects to the ground pin and the other lead connects to the io1in/io2in pins.

In the config.g the end stops are configured
M574 X1 S1 P"121io1in"
M574 Y1 S1 P"121io2in"
M574 Z1 S2

When I try to home either X or Y I get an error on the PanelDue "Failed to enabled endstops"
If I send M119 in the console of the DWC I get the following result;
Endstops - X: no endstop, Y: no endstop, Z: not stopped, Z probe: at min stop

When I first power up my printer I get some errors on the PanelDue console.
"Error: Invalid remote handle"
"Error: Response timeout CAN addr 121, req type 6036, RID=13
"Error: Response timeout CAN addr 121, req type 6036, RID=14

Please advise
regards
Stephen

jay_s_uk

@Surtz said in CanBus Problems:

M574 X1 S1 P"121io1in"
M574 Y1 S1 P"121io2in"

these should be formatted like this

M574 X1 S1 P"121.io1.in"
M574 Y1 S1 P"121.io2.in"

if that doesn't work, send M98 P"config.g"
also post your complete config

Surtz

@jay_s_uk Hi, thank you for your response to my problem, In my config.g the M574 does appear as you have described above, I had real problems when i tried to submit my post, as I was typing it out, in the preview beside when i typed out the pin numbers correctly they were highlighted in blue, and when I tried to submit my post I got an error; "You need 2 reputation to post links". For some reason this forums "system" interpreted the pin numbers as links, that's why I didn't include the . in my
post

config.g

jay_s_uk

@Surtz Can you check the firmware versions installed on each board?
M115 and M115 B121 will tell you for both board, or check on the machine settings page

Surtz

@jay_s_uk Hi, I had a look at machine setting and it showed that the Mini5 had 3.5.6, but the Roto had 3.5.4, so I went to GitHub and down loaded release 3.5.4 and uploaded it and now when I send M119 the report comes back
"Endstops - X:at min stop, Y:at min stop. Z:at min stop, Z probe:at min stop.

Thank you for your help, it wouldn't have occurred to me that different firmware versions could cause such a problem, but it does seem odd to me that it was only the endstops that wouldn't work.

Cheers
Stephen

dc42

@Surtz said in CanBus Problems:

I had a look at machine setting and it showed that the Mini5 had 3.5.6

We haven't released a firmware version 3.5.6 so I guess you meant 3.4.6. Between major firmware versions (e.g. 3.4.x and 3.5.x) we often change the details of some of the messages sent between boards over CAN, so it's not unusual for some thing not to work when you mix versions in this way.