AnnexF/weigh_st.txt
author Manuele Conti <conti.ma@alice.it>
Tue, 12 Jun 2012 22:46:51 +0200
changeset 588 3d72d09bd40f
parent 0 fb772792efd1
permissions -rwxr-xr-x
Add missing set overflow flag.
FUNCTION WEIGH : WORD     (* BCD encoded *)
  VAR_INPUT  (* "EN" input is used to indicate "scale ready" *)
    weigh_command : BOOL;
    gross_weight : WORD ; (* BCD encoded *)
    tare_weight : INT ;
  END_VAR
(* Function Body *)
IF weigh_command THEN
  WEIGH := INT_TO_BCD (BCD_TO_INT(gross_weight) - tare_weight);
END_IF ;

END_FUNCTION                     (* Implicit "ENO" *)