42 lines
883 B
Plaintext
42 lines
883 B
Plaintext
FUNCTION_BLOCK junit3
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VAR_INPUT
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temp : REAL;
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pressure : REAL;
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END_VAR
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VAR_OUTPUT
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valve : REAL;
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END_VAR
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FUZZIFY temp
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TERM cold := (3, 1) (27, 0) ;
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TERM hot := (3, 0) (27, 1);
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END_FUZZIFY
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FUZZIFY pressure
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TERM low := (55, 1) (95, 0);
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TERM high:= (55, 0) (95, 1);
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END_FUZZIFY
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DEFUZZIFY valve
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TERM drainage := -100;
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TERM closed := 0;
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TERM inlet := 100;
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METHOD : COGS;
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DEFAULT := 0;
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END_DEFUZZIFY
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RULEBLOCK No1
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AND : MIN;
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ACCU : MAX;
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RULE 1 : IF temp IS cold AND pressure IS low THEN valve IS inlet;
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RULE 2 : IF temp IS cold AND pressure IS high THEN valve IS closed WITH 0.8;
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RULE 3 : IF temp IS hot AND pressure IS low THEN valve IS closed;
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RULE 4 : IF temp IS hot AND pressure IS high THEN valve IS drainage;
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RULE 5 : IF (temp IS hot AND pressure IS high) OR pressure IS low THEN valve IS drainage, valve IS closed WITH 0.8;
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END_RULEBLOCK
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END_FUNCTION_BLOCK
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