constraint_eqn_067 Subroutine

   subroutine constraint_eqn_067(tmp_cc, tmp_con, tmp_err, tmp_symbol, tmp_units)
      !! Simple upper limit on radiation wall load
      !! author: P B Lloyd, CCFE, Culham Science Centre
      !! args : output structure : residual error; constraint value;
      !! residual error in physical units; output string; units string
      !! Simple upper limit on radiation wall load
      !! #=# physics
      !! #=#=# fradwall, pflux_fw_rad_max
      !! and hence also optional here.
      !! Logic change during pre-factoring: err, symbol, units will be assigned only if present.
      !! fradwall : input real : f-value for upper limit on radiation wall load
      !! pflux_fw_rad_max : input real : Maximum permitted radiation wall load (MW/m^2)
      !! pflux_fw_rad_max_mw : input real : Peak radiation wall load (MW/m^2)
      use constraint_variables, only: fradwall, pflux_fw_rad_max, pflux_fw_rad_max_mw
      implicit none
            real(dp), intent(out) :: tmp_cc
      real(dp), intent(out) :: tmp_con
      real(dp), intent(out) :: tmp_err
      character(len=1), intent(out) :: tmp_symbol
      character(len=10), intent(out) :: tmp_units

      tmp_cc = pflux_fw_rad_max_mw / pflux_fw_rad_max - 1.0d0 * fradwall
      tmp_con = pflux_fw_rad_max
      tmp_err =  pflux_fw_rad_max * tmp_cc
      tmp_symbol = '<'
      tmp_units = 'MW/m^2'

   end subroutine constraint_eqn_067