main()
{
 do 
 {
  if (gvarget(400)!=0)                   //if #400!=0, run g-code, otherwise continue to test #400
  {
   do{ a=gvarget(6065); }while(a!=0);	 //wait Motion Controller ready to accept new program
   gvarset(100001,1);	                 //Reset G-code pointer to start
   timer=5; do{ timer--;}while(timer>0); //0.5 sec Pause
   gvarset(100002,1);	                 //Start G-code
  };
 }while(1);    //endless loop

 exit(99);
};
//If variable #400 will be set to non-zero value, ENDLESS.plc process will be finished