gmoccapy pins

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31 Jul 2024 11:48 #306505 by Moutomation
gmoccapy pins was created by Moutomation
I want to control the home button, emergency stop, G code refresh button, program start button from the classic ladder, what should I add to the hale file for this?
 
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31 Jul 2024 11:55 #306508 by Aciera
Replied by Aciera on topic gmoccapy pins
for estop-activate use 'halui.estop.activate'
for estop-reset use 'halui.estop.reset'

for machine-on use 'halui.machine.on'
for machine-off use 'halui.machine.off

for home-button use 'halui.home-all '

for program-start use 'halui.program.run'

Gcode refresh I'm not sure.

linuxcnc.org/docs/html/man/man1/halui.1.html

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31 Jul 2024 12:14 #306511 by Moutomation
Replied by Moutomation on topic gmoccapy pins
Thanks a lot
Can program refresh be controlled from the classic ladder?

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04 Aug 2024 12:13 - 04 Aug 2024 12:13 #306911 by newbynobi
Replied by newbynobi on topic gmoccapy pins
I do recommend not to use halui pins, but the hardware button pins to control that stuff.

See:

Right and Botton Button Hal Pin
Last edit: 04 Aug 2024 12:13 by newbynobi.
The following user(s) said Thank You: Aciera, Moutomation

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04 Aug 2024 14:38 #306921 by Moutomation
Replied by Moutomation on topic gmoccapy pins
Instead of binding this key to a button, is there a way to refresh the g-code file every few seconds while the g-code is not executing? I want to automatically load the g-code file into linuxcnc continuously. The name of the g-code file is always the same and never changes.

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06 Aug 2024 09:32 - 07 Aug 2024 06:33 #307066 by Aciera
Replied by Aciera on topic gmoccapy pins
Try this:
Save the python code below as 'file-check.py' into a folder named 'python' in your machine config folder and mark as executable.
This user component will create a hal pin 'file-checked.file-changed' and output a pulse if the file is modified:#!/usr/bin/env python3
#!/usr/bin/env python3
import os
import time
import hal
import linuxcnc

h = hal.component("file-check")
h.newpin("file-changed", hal.HAL_BIT, hal.HAL_OUT)
h.ready()
# create a connection to the status channel
s = linuxcnc.stat() 
# this is the file being checked for updates (example looks for 'file.txt' in the config folder)
file_path = 'file.txt' 
# length of output puls in milliseconds 
pulse_length = 1000 

last_modified = os.path.getmtime(file_path)
h['file-changed'] = False

try:
    while 1:
        s.poll()
        # we don't want to reload when program is running
        if s.task_mode == 2 and s.state == 1: # ie AUTO-mode and 'RCS_DONE'
            current_modified = os.path.getmtime(file_path)
            if current_modified != last_modified:
                print("File has changed!")
                h['file-changed'] = True
                timer_start = round(time.time()*1000)
                last_modified = current_modified
            if h['file-changed'] and timer_start + pulse_length <= round(time.time()*1000):
                h['file-changed'] = False
            
except KeyboardInterrupt:
    raise SystemExit

To load this on startup add this to the [HAL] section of your .ini file:
HALCMD = loadusr -W ./python/file-check.py

then add this line to your POSTGUI_HALFILE:
net file-reload file-check.file-changed gmoccapy.h-button.button-1
Last edit: 07 Aug 2024 06:33 by Aciera. Reason: add lost hashbang in the code
The following user(s) said Thank You: Moutomation

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06 Aug 2024 18:10 #307113 by Moutomation
Replied by Moutomation on topic gmoccapy pins
You are great, thank you very much. I will try to do it tomorrow.

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07 Aug 2024 06:26 #307144 by Moutomation
Replied by Moutomation on topic gmoccapy pins
Hello,
I think I'm making a mistake somewhere
The file.txt file is in the config folder, but I think it cannot find this file.

./python/file-check.py: 1: import: not found
./python/file-check.py: 2: import: not found
./python/file-check.py: 3: import: not found
./python/file-check.py: 4: import: not found
./python/file-check.py: 6: Syntax error: "(" unexpected
<commandline>:0: waitpid failed ./python/file-check.py file-check
<commandline>:0: ./python/file-check.py exited without becoming ready

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07 Aug 2024 06:36 #307146 by Aciera
Replied by Aciera on topic gmoccapy pins
Seems likeI lost the hashbang in the first line of the python code in my last post.
I just fixed that, so copy/paste the fixtd python code above and try again.
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07 Aug 2024 06:51 #307148 by Aciera
Replied by Aciera on topic gmoccapy pins
Note, for the gcode to reload you need to switch to the 'AUTO' mode screen in gmoccapy.
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