(***********SECOND ORDER PROCESS**************)
(* Variable are declared as LOCAL except 
   input parameter "CL_in" and outpur parameter "CL_out" *)

CL_pr_out := CL_b1 * CL_in - CL_a1*CL_outmem1 - CL_a2*CL_outmem2;
CL_outmem2 := CL_outmem1;
CL_outmem1 := CL_pr_out;
CL_out := CL_pr_out;


