ESTOP button behavior

More questions as a result of QTPlasmaC testing:

With regard to the ESTOP button (which I understand to be one of the existing LCNC widgets), the current behavior on a live machine with a physical estop is not consistent with previous GUI experiences (AXIS).

1. Currently if I start QTPlasmaC with the hardware estop reset (not pressed), the GUI ignores it. I have to press the estop, and then reset the estop for the GUI to pick up that the machine is not estop'd. Also, clicking the estop GUI in this state doesn't have any effect (meaning the power button does not become active).

2. If I start QTPlasmaC with the hardware ESTOP pressed, QT will allow me to click the GUI ESTOP and it will change color, but it has no effect (as the hardware ESTOP is pressed). In order to be consistent with other GUIs, the color should not change.

To summarize:
1. If the hardware estop is pressed on launch, GUI should reflect this in the GUI and not be clickable.
2. If the hardware estop is in reset condition upon launch, GUI should reflect this and show as not being estopped.
3. The GUI estop is clickable when the machine is powered on as a (albeit terrible) means of estoping the machine.
4. If the machine is estopped via the GUI but not the hardware, clicking estop again should bring it out of estop.

We are unsure if the way it currently is expected/unexpected behavior on QT's part, or if we need to make a new button with custom code to adapt it for consistent behavior among the other GUIs.

I need more info.
Is the gui estop a check button or momentary?
how does the estop chain get from hardware to linuxcnc?

Yes the estop as coded assumes it can estop/clear at any time.
It should follow the state of linuxcnc though.

I can see it needs some work with hardware handshaking.
I'll have to delve into it a bit.

I’m not sure the technical name. In a sim you can click it and it changes color and stays changed until you click it again (not how it should work with hardware button in the mix). I’d call it a latching button?

Have you set up the external estop in hal?

Ref:
forum.linuxcnc.org/47-hal-examples/25861-external-e-stop

cmorley wrote: I need more info.
Is the gui estop a check button or momentary?

It is a Qtvcp ActionButton.

I just wanted to see if you've had a chance to delve into the hardware handshake, etc. at all. Also see if there's anything you need from me/something I might test for you?

i looked at it - got discouraged and worked on something hard so now it will seem easy

Sorry i didn;t get back to it sooner...

cmorley wrote: so now it will seem easy

Haha so if I stick with trying to code long enough you’re telling me there’s a point when things will seem easy?? :woohoo:

Breaking it seems easier though :evil: :laugh:

snowgoer540 wrote: Breaking it seems easier though :evil: :laugh:

We all have our strengths....

fixing is more satisfying

cmorley wrote:

snowgoer540 wrote: Breaking it seems easier though :evil: :laugh:

We all have our strengths....

fixing is more satisfying

Well, I can agree that I do feel like a wizard when I mess with it long enough and it does what it’s supposed to.

But I’m far better at finding the things it shouldn’t do. Still some satisfaction in helping make it better for the next guy.