Function Block FFR

The Function Block FFR is a Flip-Flop switch with toggle input.

Input TR

This is the pushbutton input. This toggles the output Q between true and false on a positive edge.

Tip: If this should happen on a negative edge, use the Function Block N before the input.

Input SET

If this input is true, the output Q is held to true.

Input RESET1

If this input is true, the output Q is held to false. This input has priority over the input SET.

Output Q

The output toggles between true and false. It is false when both SET and RESET1 are true.