FUNCTION_BLOCK Fuzzy_FB
VAR_INPUT
TimeDay : REAL;
ApplicateHost: REAL;
TimeConfiguration: REAL;
TimeRequirements: REAL;
END_VAR
VAR_OUTPUT
ProbabilityDistribution: REAL;
ProbabilityAccess: REAL;
END_VAR
FUZZIFY TimeDay
TERM inside := (0, 0) (8, 1) (22,0);
TERM outside := (0, 1) (8, 0) (22, 1);
END_FUZZIFY
FUZZIFY ApplicateHost
TERM few := (0, 1) (100, 0) (200, 0);
TERM many := (0, 0) (100, 0) (200, 1);
END_FUZZIFY
FUZZIFY TimeConfiguration
TERM recently := (0, 1) (30, 1) (120, 0);
TERM long := (0, 0) (30, 0) (120, 1);
END_FUZZIFY
FUZZIFY TimeRequirements
TERM recently := (0, 1) (30, 1) (365, 0);
TERM long := (0, 0) (30, 0) (365, 1);
END_FUZZIFY
DEFUZZIFY ProbabilityAccess
TERM hight := 1;
TERM medium := 0.5;
TERM low := 0;
ACCU: MAX;
METHOD: COGS;
DEFAULT := 0;
END_DEFUZZIFY
DEFUZZIFY ProbabilityDistribution
TERM hight := 1;
TERM medium := 0.5;
TERM low := 0;
ACCU: MAX;
METHOD: COGS;
DEFAULT := 0;
END_DEFUZZIFY
RULEBLOCK No1
AND : MIN;
RULE 1 : IF TimeDay IS outside AND ApplicateHost IS few THEN ProbabilityAccess IS hight;
RULE 2 : IF ApplicateHost IS many THEN ProbabilityAccess IS hight;
RULE 3 : IF TimeDay IS inside AND ApplicateHost IS few THEN ProbabilityAccess IS low;
END_RULEBLOCK
RULEBLOCK No2
AND : MIN;
RULE 1 : IF ApplicateHost IS many THEN ProbabilityDistribution IS hight;
END_RULEBLOCK
END_FUNCTION_BLOCK