Hydraulic press brake control

component pressbrake "Press brake component";

description
"""

Component press brake control, written in C language.
Inspired by Delem Holland.

Todo :

1. --

""";

author "Grotius CNC Machines";

license "GPLv2 or greater";

option singleton yes;

// Startup Pins :
pin in bit Emergency_brake "Emergency brake input";
pin in bit Light_curtain "Connect to safety light curtain";
pin in bit Safety_door_sensor "Connect to safety door sensor";
pin in bit Enable "Enable Press brake component";
pin out bit Enable_true "Control feedback signal for hmi, usable for indicator screen led's";

// Feedback positions :
pin in float Left_glas_encoder_pos_fb "Glas scale encoder position feedback";
pin in float Right_glas_encoder_pos_fb;
pin in float Left_stepper_pos_fb "Stepper motor encoder actual position feedback";
pin in float Right_stepper_pos_fb;
pin in float Backstop_stepper_pos_fb;
pin in float Oil-pressure ;

// Input pins :
pin in bit Left_stepper_home_switch_in "Home switch stepper motor, procedure when linuxcnc start's, process done before activating hydro pump";
pin in bit Right_stepper_home_switch_in;

pin in float Max_speed "Max valve rotation (speed) value";
pin in float Press_speed "Valve rotation (speed) when pressing knife";
pin in float Press_hold_time "Delay time when knife is pressing on product in second's";
//pin in float Backstop_pos "Workpiece backstop input position";
//pin in float Backstop_pos_retract "Backstop retract distance when pressure is increasing";

// Output pins :
pin out float Stepper_motor_pos_cmd_left "Calculated valve output postions";
pin out float Stepper_motor_pos_cmd_right;
pin out bit Hydro_pump_on "Hydraulic pump on/off signal";
pin out bit Machine_light_on "Turn's on the machine light";

pin out float Left_glas_encoder_correction "Calculating encoder_pos_fb + encoder_correction";
pin out float Right_glas_encoder_correcton;


variable double Time; // Delay timer for pressing knife on product

function _;

;;

#include "rtapi_math.h"

typedef enum { INIT, SELECT} state_T;
state_T state = INIT;

FUNCTION(_) {


switch(state){

case INIT:
if(Enable){
state = SELECT;
}

if(!Enable){
state = INIT;
}
break;

case SELECT:
state = INIT;
break;
}

}