PROGRAM STOP BUTTON - ERROR

Here is an interesting one...

I have two buttons programmed on a pyVCP panel... PROGRAM RUN and PROGRAM STOP.

I figured out quickly that the PROGRAM RUN button could ONLY be triggered in AUTO mode... so I did this...

CUSTOM_POST_GUI.HAL
That works great...

Now the stop button... it stops... but with an error...

CUSTOM_POST_GUI.HAL
I get the following...


So what am I missing??
Thanks,
Jerry

Maybe, you can try one of this below :

#real mode :
#net estop-out <= iocontrol.0.user-enable-out
#net estop-ext => iocontrol.0.emc-enable-in
#net estop-ext => halui.program.stop

==> net estop-ext => your i/0 pin for emergency brake circuit, i changed to halui for you, but better is choosing a real hardware circuit pin for real machines without simulation. Fail safe.

#simulation mode :
net estop iocontrol.0.emc-enable-in iocontrol.0.user-enable-out

It is not an ESTOP button... we do not want to put the machine in ESTOP mode... although i suppose that is one way to do it.

We simply want to do the same thing as hitting the square stop button at the top of the screen...


If a program is running and you hit this... the program stops. That is what i am attempting to replicate.

Thanks,
Jerry

Hi Jerry,

Why don't you use a gscreen gui? It makes life easy for you... You can say
"program stop" in python.

Hal.ui command's alway's worked for me. I don't use them because i alway's program in python or c.
I only couple my ethercat side in hal and some stuff that are hal button's from glade without defining them in the gui first, that is more a lazy action. But Gmocappy is more accurate in that way.

Maybe you can try : halui.abort
it does the same as program stop, it's only more written to top level.

Askjerry wrote:

I get the following...

can't do that (EMC_TRAJ_SET_TELOP_ENABLE)
in auto mode with the interpreter idle

So what am I missing??
Thanks,
Jerry

My thought:
EMC_TRAJ_SET_TELOP_ENABLE indicates to me that the machine was in joint mode when you pressed stop.
that is a mode that you can't run a program in - so pressing stop is useless - but I would say linuxcnc should ignore it rather then error on it.
Does this sound likely? (could probably test by keeping track what mode linuxcnc is in with the status program)
If I'm right it would require code changes either in HALUI or better in linuxcnc's motion controller.
In gladevcp we would disable the stop button to limit this possibility, PyVCP can not IIRC.

My 2 cents

Chris M

Grotius - That may work... but at the moment I know how to make panels in GLADE and pyVCP... I have not used, and I am not familiar with gscreen gui so I'll have to research it... but most likely I'll go a different route for now. (I'm patching an existing machine.)

The halui.abort may work... and it is easy to try... that will be my first attempt.

cmorley - It is just a standard insttall of LinuxCNC with an X-Y-Z configuration running a typical G-Code file... nothing special.

Thanks,
Jerry

phillc54 - I could be reading what you have incorrectly... but it looks like you are tying is-running and is-paused as two inputs... which will be true when running... so the stop command would be applied... but I see that as till hitting the error fail as it is going to be in the same state as without checking.

Here is the actual code as it is now...

As you can see... the pyvcp.PRGM-RUN button pushes halui.mode.auto and and the halui.program.run signals... likely in that order. So it gets pushed to AUTO mode, then gets the RUN command... works beautifully.

If I hit the PAUSE button, then hit the STOP button... it works.

So what I would love to do is...

But even removing the PAUSE button and trying it... I still get the error.
I also tried the suggested halui.abort which also failed.

It appears that I need to trigger a pause... then trigger a stop afterward... not sure how to do that. Or figure out what mode the system expects to be in... then do it.

Or... and I don't know if this is possible... fake it out so it thinks the user pressed the ESC key... because that works fine.

Is that possible... point the pyvcp.PRGM-STOP to trigger a keystroke???

Jerry

Not sure how I would tie a SETP to a pyvcp button... let alone how to make it set then reset on a single button press.

The ZIP file for it all is attached... I'm writing it for a friend in Brazil... and he speaks Portuguese... you know... just to make the project more interesting...


The bottom two rows...

[ PROGRAM RUN ] [ LED INDICATOR ] [ PROGRAM STOP ]
[ PROGRAM PAUSE ] [ PROGRAM STEP ] [ PROGRAM RESUME ]

... I should really swap the RED and GREEN... hummm...

That is the layout...if that helps...