// Go to Zero with safeZ

if(exec.GetXpos()==0 && exec.GetYpos()==0 && exec.GetZpos()==0)
{
  return; // if all position DROs are already zero then return
}

string feedrate = AS3.Getfield(867);
exec.Getactualoffset();

double safeZ = exec.mainform.UCsetup.UCset.Generalsettings.SafeZ;
double Softlimitsrelative = exec.mainform.UCsetup.UCset.Axis[2].UC100axis.SoftLimitP - exec.ofc.Wzval - exec.ofc.TOZval - exec.ofc.G92zval;

if(exec.mainform.UCsetup.UCset.Generalsettings.Enablesoftlimits)
{
  if(safeZ>Softlimitsrelative)
  {
    safeZ = Softlimitsrelative;
    if(exec.GetXpos()!=0 || exec.GetYpos()!=0)
    {
      DialogResult result = MessageBox.Show(exec.mainform.MSG.Message[45], "Confirmation", MessageBoxButtons.YesNo);
      if(result ==  DialogResult.No)
      {
        return; 
      }
    }
  }
}

  while(exec.IsMoving()){}
  int originaldistancemode = exec.actualdistmode; // remember the distance mode
  int originalmodalmode = exec.actualmodal; // remember the modal mode
  exec.Code("G90"); // Set system to absolute distance mode
  exec.Wait(100);

  if(exec.GetXpos()!=0 || exec.GetYpos()!=0)
  {
    if(exec.GetZpos()<safeZ) //Move Z only if the Z coordinate is lower than the safeZ
    {
      exec.Code("G00 Z"+ safeZ); // Move Z up to safeZ defined by user, above the zero plane
      while(exec.IsMoving()){}
    }
    exec.Code("G00 X0 Y0"); // Move XY to Zero
    while(exec.IsMoving()){}
  }

  exec.Code("G00 Z"+ safeZ); // Move Z quickly to safe distance
  while(exec.IsMoving()){}

  exec.Code("G1 F600 Z" + safeZ / 2); // Move Z halfway
  while(exec.IsMoving()){}

  exec.Code("G1 F300 Z0"); // Move Z slowly to 0
  while(exec.IsMoving()){}

  exec.Code("G" + originaldistancemode + " F" + feedrate); // Set system back to the original distance mode and feedrate
  exec.Code("G" + originalmodalmode); // Set system back to the original modal mode