External E-Stop

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28 Jun 2020 16:08 #173001 by Project_Hopeless

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.

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28 Jun 2020 16:17 #173002 by tommylight
The following user(s) said Thank You: Aciera, DoWerna

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28 Jun 2020 16:23 #173003 by Aciera
Replied by Aciera on topic External E-Stop
What GUI are you using. I do have a solution but only for gmoccapy.

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15 Aug 2020 14:01 #178278 by Project_Hopeless
Replied by Project_Hopeless on topic External E-Stop

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.
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
I'm trying to post the mesage like so.
# 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


I'm getting this error. With a Mesa 7i76e card how do I make the HAL connection?
Debug file information:
Note: Using POSIX realtime
./borg.hal:190: setp requires 2 arguments, 4 given
2988

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15 Aug 2020 14:50 #178289 by tommylight
Replied by tommylight on topic External E-Stop

I'm trying to post the mesage like so.
# 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
# my message setup External E-Stop
loadrt message names=xestop messages="External E-Stop"
net xestop estop-latch.0.fault-in <= hm2_[HOSTMOT2](BOARD).0.gpio.010.in_not   	# active low, N/C=open
The following user(s) said Thank You: Sadmeatball

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15 Aug 2020 15:20 #178296 by MaHa
Replied by MaHa on topic External E-Stop
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

net remote-estop estop-latch.0.fault-in <= hm2_[HOSTMOT2](BOARD).0.gpio.010.in_not
by

setp xestop.edge 0
net remote-estop estop-latch.0.fault-in <= hm2_[HOSTMOT2](BOARD).0.gpio.010.in_not xestop.trigger

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13 Sep 2020 23:57 #182044 by dennis.lewis5
Replied by dennis.lewis5 on topic External E-Stop
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.

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30 Dec 2020 12:00 #193518 by ikkuh
Replied by ikkuh on topic External E-Stop

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.

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31 Dec 2020 22:53 #193685 by dennis.lewis5
Replied by dennis.lewis5 on topic External E-Stop
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.

This browser does not support PDFs. Please download the PDF to view it: Download PDF

This browser does not support PDFs. Please download the PDF to view it: Download PDF

Attachments:

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01 Jan 2021 07:38 - 01 Jan 2021 07:39 #193704 by rodw
Replied by rodw on topic External E-Stop
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.

Last edit: 01 Jan 2021 07:39 by rodw.

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