Step entry, step body and step exit

Every step includes a:

• Step entry section where values are written to attributes after the step is activated. The On Entry outputs are processed on the first scan cycle when the step becomes active.

• Step body section where the step condition and jump condition are continuously evaluated. Step and jump conditions are not executed until the second scan of the step.

• Step exit section where values are written to attributes after the step condition or jump condition is fulfilled. The On Exit outputs are processed in the same scan cycle when the step condition or jump condition is fulfilled.

  

  Note: Once a step is active, it is evaluated once per scan cycle until it is no longer the active step.