MDI command S4000 turns the spindle ON

[zmrdko]

Here are the steps I follow to reproduce the issue:

1. estop off
2. turn machine on
3. home all
4. issue S4000 MDI command

This is what I expected to happen:

S4000 command only changes preset spindle speed

This is what happened instead:

S4000 command makes spindle FWD button appear as ON (halui.spindle.0.runs-forward is switched to ON state, but spindle.0.forward is OFF)

It worked properly before this:

a friend of mine declared, that in 2.7 it does not happen

Information about my hardware and software:

• I am using this Linux distribution and version (often, shown by lsb_release -a): Debian 12 Bookworm
• I am using this kernel version (shown by uname -a): Linux linuxcnc 6.1.0-15-rt-amd64 #1 SMP PREEMPT_RT Debian 6.1.66-1 (2023-12-09) x86_64 GNU/Linux
• I am running ...
  • [X] A binary version from linuxcnc.org (including buildbot.linuxcnc.org)
  • [ ] A binary I built myself
  • [ ] A binary version from some other source besides linuxcnc.org
• I am using this LinuxCNC version (shown in package manager or, for git versions, scripts/get-version-from-git): 2.9.1
• I am using this user interface (GUI) (e.g., AXIS, Touchy, gmoccapy, etc): probe_basic/axis
• I am using this interface hardware vendor and chipset (e.g., parallel port, ethernet port, FPGA card): Mesa 7i95t

https://github.com/LinuxCNC/linuxcnc/assets/56800227/3078db1c-e95d-48aa-a550-269483afb872

[jethornton]

Running the Axis sim and watching the spindle pins in the watch window and nothing changes there. Seems like it's an issue with the gui and perhaps with the python interface.

JT

[zmrdko]

can you please double check? here is video of stock axis sim config and halshow spindle pins:

https://github.com/LinuxCNC/linuxcnc/assets/56800227/ef608f73-7007-4921-b8bf-41894842d172

You are right, that it does not affect spindle.0.froward pins, It affects only halui.spindle.0.forward pin.

[andypugh]

I think you mean the halui.spindle.0.runs-forward pin? Does it set the runs-reverse pin if you enter a negative speed?

Are you prevented from pressing the spindle-start pin (on the basis that it is already pressed)

[zmrdko]

Correct, my bad: halui.spindle.0.runs-forward as seen on screen capture. Entering negative Spindle speed is not permitted. I get error: Negative spindle speed used:

I am able to press spindle FWD again, and it actually starts the spindle:

[c-morley]

This sounds like a bug just fixed..try the latest code in 2.9

[zmrdko]

This sounds like a bug just fixed..try the latest code in 2.9

im using this apt source:

deb [arch=amd64,arm64 signed-by=/usr/share/keyrings/linuxcnc.gpg] https://www.linuxcnc.org/ bookworm base 2.9-uspace
deb-src [arch=amd64,arm64 signed-by=/usr/share/keyrings/linuxcnc.gpg] https://www.linuxcnc.org/ bookworm base 2.9-uspace

when this repository gets updated with bugfix you mentioned?

[zmrdko]

If I understand correctly, it will be fixed in version 2.10

[c-morley]

It should be fixed in 2.9.2 coming out soon ish. I always compile the code so can't advise how to try earlier. Usually the buildbot builds the currentest code.

[zmrdko]

Thanks!