constraint_eqn_056 Subroutine

   subroutine constraint_eqn_056(tmp_cc, tmp_con, tmp_err, tmp_symbol, tmp_units)
      !! Equation for power through separatrix / major radius upper limit
      !! author: P B Lloyd, CCFE, Culham Science Centre
      !! args : output structure : residual error; constraint value;
      !! residual error in physical units; output string; units string
      !! Equation for power through separatrix / major radius upper limit
      !! #=# current_drive
      !! #=#=# fnbshinef, nbshinefmax
      !! and hence also optional here.
      !! Logic change during pre-factoring: err, symbol, units will be assigned only if present.
      !! fpsepr : input real : f-value for maximum Psep/R limit
      !! pseprmax : input real :  maximum ratio of power crossing the separatrix to plasma major radius (Psep/R) (MW/m)
      !! pdivt : input real :  power to be conducted to the divertor region (MW)
      !! rmajor : input real :  plasma major radius (m)
      use constraint_variables, only: fpsepr, pseprmax
      use physics_variables, only: pdivt, rmajor
      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 = 1.0D0 - fpsepr * pseprmax / (pdivt/rmajor)
      tmp_con = pseprmax * (1.0D0 - tmp_cc)
      tmp_err = (pdivt/rmajor) * tmp_cc
      tmp_symbol = '<'
      tmp_units = 'MW/m'

   end subroutine constraint_eqn_056