Configuring Plasmac - a complete THC/plasma config for any hardware

component downdraft4 "LinuxCNC HAL component that triggers 4 zone downdraft zone for plasma cutting";

description
"""
Component to trigger zones on a 4 zone downdraft system

\\fBEXAMPLE:\\fR
.br

 
.br
loadrt downdraft names=ddraft4
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addf downdraft servo-thread
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net position axis.y.pos-cmd    => ddraft4.position
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setp ddraft4.cutover1 600
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setp ddraft4.cutover2 1200
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setp ddraft4.cutover3 1800
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setp ddraft4-trigger1 <= ddraft4.trigger1
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setp ddraft4-trigger2 <= ddraft4.trigger2
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setp ddraft4-trigger3 <= ddraft4.trigger3
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setp ddraft4-trigger4 <= ddraft4.trigger4
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setp ddraft4-trigger1 => YOUR-trigger1-PIN
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setp ddraft4-trigger2 => YOUR-trigger2-PIN
.br
setp ddraft4-trigger3 => YOUR-trigger3-PIN
.br
setp ddraft4-trigger4 => YOUR-trigger4-PIN

""";


author "Rod Webster";

pin   in  float position    "Motion signal for Axis position";
pin   out bit trigger1       "True if downdraft segment 1 should be triggered";
pin   out bit trigger2       "True if downdraft segment 2 should be triggered";
pin   out bit trigger3       "True if downdraft segment 3 should be triggered";
pin   out bit trigger4       "True if downdraft segment 4 should be triggered";
param rw  float cutover1     "Maximum Absolute axis coordinate for zone 1 change";
param rw  float cutover2     "Maximum Absolute axis coordinate for zone 2 change";
param rw  float cutover3     "Maximum Absolute axis coordinate for zone 3 change";


function _;
license "GPL";
;;

#include <rtapi_math.h>

FUNCTION(_) {
  if(position <= cutover1);
    trigger1 = 1;
    trigger2 = trigger3 = trigger4 =0;
  }
  else if(position <= cutover2){
    trigger2 = 1;
    trigger1 = trigger3 = trigger4 =0;
  }
  else if(position <= cutover3){
    trigger3 = 1;
    trigger1 = trigger2 = trigger4 =0;
  }
  else {
    trigger4 = 1{
    trigger1 = trigger2 = trigger3 =0;
  }
}