Function BlockA function block groups an algorithm and a set of private data. It has inputs and outputs. - Asymmetric blinker.
RUN : BOOL Enabling command
TM0 : TIME
Duration of FALSE state on output
TM1 : TIME
Duration of TRUE state on output
Q : BOOL Output blinking signal
The output signal is FALSE when the RUN input is FALSE. In FFLD language, the input rung is the IN command. The output rung is the Q output signal.
(* MyBlinker is a declared instance of BLINKA function block *)
MyBlinker (RUN, TM0, TM1);
Q := MyBlinker.Q;
(* MyBlinker is a declared instance of BLINKA function block *)
Op1: CAL MyBlinker (RUN, TM0, TM1)
FFLD MyBlinker.Q
ST Q
See also
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