This is the E_PERMIT (permissive event propagation) function block type defined in Annex A of IEC 61499-1. Its operation is modeled as shown below.

Test Procedure
  1. Open and run events/E_PERMIT in the FBDK.
  2. Exercise the FB by entering a value for the PERMIT input variable and clicking on the EI event input.
Last updated: 2016-04-19.
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