QTPlasmac and estop-latch broken (no iocontrol.0.user-request-enable)

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5 years 3 months ago #215904 by cmorley
We keep just missing.

The button is all I'm interested in.
The button behavior is what I'm coding.
I understand how the estop chain works in principle.

This is how i think AXIS's button works.
when estopped the button appears pressed in.
When the user presses the button one of two things happen.

1) if estop chain is good - the button appears un pressed and linuxcnc comes out of estop.

0r

2) if the estop chain is not good the button appears still pressed in and linuxcnc stays in estop.

What I'm really not sure about is if you have pressed the button to release estop and the estop chain is not ready, if it becomes ready (say in a few seconds) does linuxcnc come out of estop or does it require another button press?

Chris

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5 years 3 months ago #216008 by rodw
Based on a bit of work I did last night with a safety relay, I think the state changed as you release the GUI button. If an external estop was enabled at that time, the GUI button did not unpress.
I don't think anything with estop is going to wait around for a few seconds. Its pretty much instantaneous. Get it ready before you take it out of estop or nothing will happen.

I kind of ran out of time last night. I got the safety relay engaging on a GUI estop press but I can't yet see a way to turn the machine off from the GUI. I suspect when I look at my press brake control behaviour, this is pretty normal. On It, I either have to turn off the physical power switch or press the estop to turn off the hydraulic pump (which is in the estop circuit). I'm still thinking about that!
 

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5 years 3 months ago #216012 by cmorley
Thanks for testing Rod - I will work on the code and come up with something to test.

Chris

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