External E-Stop

LinfieldGarage wrote: I know this is an old thread but it helped me get my estop working.

Here is a working config from my system running Master branch 2.8 and a Mesa 7i96 board. My estop button is N/C and is a 24 volt input to GPIO 010 on the Mesa board. Just change the last line for your particular board and GPIO pin.

# ---estop signals---
# create a signal for the estop loopback
#config from BigJohn#
loadrt estop_latch
addf estop-latch.0 servo-thread
net estop-loopout iocontrol.0.emc-enable-in <= estop-latch.0.ok-out
net estop-loopin iocontrol.0.user-enable-out => estop-latch.0.ok-in
net estop-reset iocontrol.0.user-request-enable => estop-latch.0.reset
net remote-estop estop-latch.0.fault-in <= hm2_[HOSTMOT2](BOARD).0.gpio.010.in_not

Is there a simple way to have an on screen popup indicating the external E-Stop was pressed. Something like you get with the axis limits?

If I accidentally bump an external button it would be nice to know it was an external button and perhaps which one.

linuxcnc.org/docs/html/man/man9/message.9.html

What GUI are you using. I do have a solution but only for gmoccapy.

tommylight wrote: linuxcnc.org/docs/html/man/man9/message.9.html

I did my best to to try and get a message to post, however I'm stuck. I'm nut understanding the syntax.

Here is my HAL for handling the external estop, this is working correctly. I'm trying to post the mesage like so.

I'm getting this error. With a Mesa 7i76e card how do I make the HAL connection?

Project_Hopeless wrote: I'm trying to post the mesage like so.

Code:

# my message setup External E-Stop loadrt message names=xestop messages="External E-Stop" setp xestop estop-latch.0.fault-in <= hm2_[HOSTMOT2](BOARD).0.gpio.010.in_not # active low, N/C=open

should be

Once i had a similar problem, modified and tested this in the sim. Even you got a reply already. This worked for me, and as i have spent time for this, i post it anyway.
Replace this line

by

I cannot speak to the messaging you asked about but I am working on a system to tell me if the e-stop is the pc (as in startup) a local e-stop (one mounted on the machine) or a remote e-stop. The system simply operates a beacon and the flashing rate of the beacon indicates the trouble spot. It will force the pc into e-stop if local or remote.

If you have any interest please let me know.

dennis.lewis5 wrote: I cannot speak to the messaging you asked about but I am working on a system to tell me if the e-stop is the pc (as in startup) a local e-stop (one mounted on the machine) or a remote e-stop. The system simply operates a beacon and the flashing rate of the beacon indicates the trouble spot. It will force the pc into e-stop if local or remote.

If you have any interest please let me know.

Yes, please. Most people here learn better by examples then reading abstract manuals. So I am certainly interested in your system.

Thanks for your interest. I have (hopefully) attached a pdf with a description and photo of the e-stop module. A copy of the schematic is included as well.

If you would like to build one I have boards available as well as the pic micro.

Regards, Dennis

And Happy New Year.

I had to say it. I don't think its necessary to use hardware to achieve what your board does. You could use the sigggen component to flash the lights. Here is an example which i now have running stack lights. The green light flashes and you could apply the same approach to the red light for estop.