FUNCTION_BLOCK E_SR

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ECC
ALGORITHM SET IN ST:
   Q:=TRUE;
END_ALGORITHM

ALGORITHM RESET IN ST:
   Q:=FALSE;
END_ALGORITHM

This is the E_SR event-driven bistable function block type defined in Annex A of IEC 61499-1. Its operation is modeled by the Execution Control Chart (ECC) and algorithms shown above.