Posts made by machinemark

Hi Tony,

Thanks for your reply. I was thinking on similar lines but incremental ie in the slicer set start g code to run M180
Then the Duet runs M180 which turns on the output, runs a while loop waiting for an input to change ie Heaters change voltage of an input on the duet board or powers one of the opto isolated inputs once they are up to temperature. Then the while loop is broken and can continue, Assume
T0 M568 S200
T1 M568 S220
T2 M568 S240
T3 M568 S250

This of coarse is simplified, there would be a few safety interlocks and checks.

In your example M1040, M568, M1060 run in parallel? The question would be bringing on outputs and checking inputs. I still having issues with both. I seem to have had success declaring outputs and inputs in the config.g file but only had success turning on the heater outputs from a macro. No luck turning on GPIO outputs or checking GPIO inputs. Any ideas or examples?

Thanks Mark

I have tried switching the input to GND, then checking for a change of input from the duet side, then tried switching the input to 3.3 volt looking for a change of state and then out desperation tried switching the input to 5 volt still with no changes. Perhaps my naming or syntax in the macro is incorrect. ie the hardware side is no issue but not sure about the naming. When running M950 in config we declare the pin as J1 ie
M950 J1 C"io6 . in" in the config.g file (The spaces between io6 and the . and in are intentional cause I cannot send this message for the system sees it as a link and blocks it)
But then when we try to check the inputs status in the macro we cannot use J1 - it gives an error.
So tried

if sensors.gpIn[6].value != 0
I have looked at the documentation and examples in the forums. I have tried variations but never see any sign of change on the software side. Also tried one of the opto isolated inputs;
M950 J1 C"!io5 . in . iso" -in config.g
But the same problems.
M950 J1 Gives the same message if the opto coupler is powered or not (24 volts at the input. The documentation states 10-50 volt so 24 volt should be safe and sufficient)
Also tried to see a change of state with the above lines in a macro adjusting the input number (or I think cause the naming is different)
Any help in using ie naming etc from a macro would be awesome because the frustration might cause me to see this control board as Frisbee that needs throwing!
Thanks Mark

I have been trying to create an input on io6 using

M950 J1 C"io6 . in" in the config.g file

Then tried to check the status from the console with;

M950 J1

But always get - Pin io6 . in, active, true

I tried changing the state of the input by tying the pin to GND and 3.3V but the message never changes. Also tried to check the status of the input using
M409 K"inputs" but the output is not clear which input I should be looking at on the list.

I also tried writing a simple macro

if sensors.gpIn[6].value != 0
M117 "Output should be on"
else
M117 "Output should be off"

Not sure is the pin naming in the macro is correct so cannot trust the output of this macro.
In any case there is no change in message from the macro even though there was a change of input.

Any help would be appreciated,

Thanks Mark

Yes. Duet turns a digital output on which brings on a small relay that pulls in a large contactor that powers up the heater controllers. Once the heaters are up to temperature they close a relay. Then this is used to send 3v3, 5v or GND to an input on the duet or could use 24 volt into an opto isolated input. Then the macro can continue. The temperature controllers are made by Omron (do not have a model number with me at the moment) but they are pretty generic. Hope this helps clear the scenario.

Thanks Mark

Thank you for your reply.

Yes I could create another custom macro called MXXX (nothing naughty) and then add it to the slicers start g code so that it runs it first followed by the M104 etc but was hoping to consolidate the extra requirements in the same M104 macro.

The idea is to start the industrial controllers from the macro by turning on a GPIO (Only had luck turning on OUT0 but no joy trying to turn on io1.out IO_8)(Another problem). Then once the heaters come to temperature they bring on one of the Duets inputs (Another problem - I have created the input but it never registers with the macro ( I am asking in another post)) on where the macro has been waiting in a while loop. Then continue in a traditional sense heating and controlling 3 heaters in the same hot end (Hopefully using PID). All 7 heaters are basically 1 hot end. Hope this helps clarify the challenge.

Thanks Mark

I must be missing something??? No matter what I do, I have never seen a change of state from the duets point of view.

A Duet3 6XD board.

I am changing the input ( i o 1 . i n ) (IO6 Plug between the SBC plug and USBC plug) by switching between GND and 3.3 Volt (even tried 5 volt out of desperation)

Created the input in the config.g file;
M 9 5 0 J 0 C " i o 6 . i n "
Save the file and restart

Then run M409 - Waste of time

Then run M950 J0 - Always responds with Pin io6 . in, active true - This never changes despite the electrical change at the input.

Then created a macro to try and give a message that reflects the state of the input

if sensors.gpIn[0].value != 0
M117 "Output should be on"
else
M117 "Output should be off"

But...........................

I also tried with the optoisolated inputs and variations on the pin naming.

I have checked the voltage at the input and that it is the correct input with the documentation several times.

I am ready to throw this thing across the room, how hard can it be to check the state of an input ????

Please tell me I am an idiot and what I have missed.

And why am I having to put spaces between (i o . 6) to post, They are NOT links.

To be clear, I am tying the input to GND, running the commands to try and 'see' the state of the input. Then removing the input from the GND and connecting it to 3.3V and running commands again to check if there has been a change of state. ie GND and 3V3 shall never meet for it may release that precious smoke!

I have been trying to create an input on io6 using
M 9 50 J 1 C " i o 6 . i n in the config.g file
Then tried to check the status from the console with;
M950 J1
But always get - P i n i o 6 . i n , a c t i v e , t r u e

I tried changing the state of the input by tying the pin to GND and 3.3V but the message never changes. Also tried to check the status of the input using
M409 K"inputs" but the output is not clear which input I should be looking at on the list.

Any help would be appreciated,

Thanks Mark

Yes I am having the same problem

We are building a large 3D printer which uses multiple industrial temperature controllers for Preheating the plastic pallets. There are 3 final heaters that we would like under the control of a Duet3 6XD. We would like to create a custom M104 macro or edit the existing one so a simple digital out would turn on the industrial temperature controllers. Once they are up to temperature they send an 'All OK' signal (which are all in series). This signal then turns on an input on the Duet and then the macro would continue to heat three heaters that are under it's control.
I noticed that G10 is used in some slicers but believe that this would not be able to be edited?

So how might one create or edit the M104 macro?

Any comments are welcomed,.

Thanks Mark