I had this problem to wait for an input before executing the next line of gcode. like a punching machine / drilling mahcine.
This is a subroutine to to do that.
Code:
O<wait_for_input_fall> sub
M66 P0 L2 Q1
O<loop> while [#5399 EQ -1]
M66 P0 L2 Q1
O<loop> endwhile
O<wait_for_input_fall> endsub
Put this subrouting at the start of your Gcode file and call it as:
Code:
O<wait_for_input_fall> call
This will wait for input 0 to go low and keep re-checking the input at every 1s.
The changes made to the HAL file are to link motion.digital-in-00 to the input pin. In my case I am using the MESA 7i43 card and I want a time delay after the input is received..
HAL File....
Code:
#use halui to configure estop... and machine on
#
net estop-in <= hm2_7i43.0.gpio.047.in_not
net estop-in => iocontrol.0.emc-enable-in
#load a time delay...
loadrt timedelay count=2
#add the time delay function to the servo-thread
addf timedelay.0 servo-thread
#set the on-delays and offselays in seconds
setp timedelay.0.on-delay 0.25
setp timedelay.0.off-delay 0.0
net estop-in => timedelay.0.in
net machineon <= timedelay.0.out
net machineon => halui.machine.on
# start the program...
# and step-program-input with mode auto
loadrt and2 count=2
loadrt edge count=1
addf and2.0 servo-thread
addf and2.1 servo-thread
addf timedelay.1 servo-thread
setp timedelay.1.on-delay 0.4
setp timedelay.1.off-delay 0.0
#connect andgate to step program edge
net step-program-input hm2_7i43.0.gpio.046.in => and2.0.in0
#and the input with machine on signal
net machineon => and2.0.in1
net step-and-machine and2.0.out => and2.1.in0
net modeauto halui.mode.is-auto => and2.1.in1
net step-program and2.1.out => timedelay.1.in
net progstep timedelay.1.out => motion.digital-in-00
PLEASE USE ABOVE AT YOUR OWN DISCRETION and after understanding what it does... This is what works for me. Ofcourse I will also be changing this to make it better and am very open to suggestion to that same effect.
Regards,
automata
