constraint_eqn_060 Subroutine

   subroutine constraint_eqn_060(tmp_cc, tmp_con, tmp_err, tmp_symbol, tmp_units)
      !! Equation for Central Solenoid s/c temperature margin lower 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 Central Solenoid s/c temperature margin lower limit
      !! #=# tfcoil
      !! #=#=# ftmargoh, tmargmin_cs
      !! and hence also optional here.
      !! Logic change during pre-factoring: err, symbol, units will be assigned only if present.
      !! ftmargoh : input real :  f-value for central solenoid temperature margin
      !! tmargoh : input real :  Central solenoid temperature margin (K)
      !! tmargmin_cs : input real :  Minimum allowable temperature margin : CS (K)
      use constraint_variables, only: ftmargoh
      use pfcoil_variables, only: tmargoh
      use tfcoil_variables, only: tmargmin_cs
      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 - ftmargoh * tmargoh/tmargmin_cs
      tmp_con = tmargmin_cs
      tmp_err = tmargmin_cs - tmargoh
      tmp_symbol = '>'
      tmp_units = 'K'

   end subroutine constraint_eqn_060