AnnexF/hysteresis_st.txt
author Edouard Tisserant
Tue, 09 Jul 2019 08:31:02 +0200
changeset 1088 9cb7c8bf7dbc
parent 0 fb772792efd1
permissions -rwxr-xr-x
Add a column to VARIABLES.CSV, containing variable (derived) type name, additionally to current last column contyaining base type name
FUNCTION_BLOCK HYSTERESIS
    (* Boolean hysteresis on difference *)
    (* of REAL inputs, XIN1 - XIN2      *)
  VAR_INPUT XIN1, XIN2, EPS : REAL; END_VAR
  VAR_OUTPUT Q : BOOL := 0; END_VAR
  IF Q THEN IF XIN1 < (XIN2 - EPS) THEN Q := 0; END_IF ;
  ELSIF XIN1 > (XIN2 + EPS) THEN Q := 1 ;
  END_IF ;
END_FUNCTION_BLOCK