QtDragon startup issues if limit/home switch tripped

So when QtDragon starts up and machine is sitting on a limit/home sw, the enable limits check box acts strange. You can turn on machine (on/off button) and checking/unchecking enable limits has no effect. I have to turn on/off button back off, toggle enable limits then turn on/off button on. On/Off button then immediately turns off and one has to toggle enable limits again and then turning on/off button back on will now allow one to jog off limit...

So What I think is happening here is the machine on button is not reflecting the actual state of linuxcnc in this situation.

What I expect to/can happen with limit tripped:

1) take machine out of estop -ok
2) set machine on -fail with limit trip message.
3) override limits checked - message that the limits are overridden
3) set machine on - ok and can be jogged

currently on step 2 the button stays green and the toggle position is wrong, but actually linuxcnc is still off.

can you confirm you see the same thing?

I should add because the button toggle state in step 2 is out of synch, that means in step 3 you must press the machine on button twice to start the machine.

So starting up:
ESTOP is off (meaning green led in middle is on)
Press machine on, get a "Operator Error: joint 1 on limit switch error"
Check override, get a "Operator error: Hard Limits are overridden!"
no jog
press machine off, uncheck override, check override, press machine on
no jog
press machine off, uncheck override, check override, press machine on
get "Can Not Reset Limits Override - Still On Hard Limits"
machine goes on then it turns itself off.
get "joint 1 on limit error"
get "command (EMC_TASK_PLAN_EXECUTE) cannot be executed until the machine is out of E-stop and turned on"
get "command (EMC_TASK_PLAN_EXECUTE) cannot be executed until the machine is out of E-stop and turned on"
uncheck override, check override,
get a "Operator error: Hard Limits are overridden!"
press machine on
get a "Operator Error: joint 1 on limit switch error"
no jog
press machine off, uncheck override, check override
get a "Operator error: Hard Limits are overridden!"
press machine on
now I can jog

I might add that when trying KB jog while it is not working in this process, I'm in manual mode, I get a "Machine must be ON and in Manual mode to jog". Like the machine thinks it is another mode, jog screen buttons don't work as well.

could you try the process I laid out and see if it works?

It does not work, I tried it several times... Only the process i laid out works. I can start up, cycle machine on a dozen times, then I still have to go through 2 rounds of the of the off-uncheck-check-on before it works.

Can you tell me what works and what fails in the process I described?

turbostew wrote:

So starting up:
ESTOP is off (meaning green led in middle is on)
Press machine on, get a "Operator Error: joint 1 on limit switch error"
Check override, get a "Operator error: Hard Limits are overridden!"
no jog

I would expect jogging not to work at this point as you haven't got the machine to turn on. When you get the operator error the machine never did turn on. (as I mentioned the button color lies at the moment)

After checking the override limits check box you must click the machine on button twice - you should see a change in the screen as button become enabled.

Try using the jog buttons rather then keyboard jogging so we know it's not two problems.

Once we confirm the behavior then i can go about making it better behaved.

your steps:

1) take machine out of estop -ok
2) set machine on -fail with limit trip message.
3) override limits checked - message that the limits are overridden
4) set machine on - ok and can be jogged

after step 3, you press on/off, machine goes off, press again machine goes on then turns itself off, press on again and machine is definitely on but no jog (mouse button).
Do an Off-uncheck-check-on and jog works.

i pushed some more work on this.
It consists of most making sure the controls reflect the actual state of linuxcnc.
The check button and power button could become out of sync with linuxcnc's state.
There is also another option - the notify floating message box can be used to override the limits and restart the machine with the press of one of it's buttons.

it touches quite a few files.

Much better! Thank You Chris