SR : Set_Reset Flip Flop

SR : Set_Reset Flip Flop

Parameter	Data Type	Memory Area	Description
<address>	BOOL	I, Q, M, D, L	The address specifies which bit will be set or reset.
S	BOOL	I, Q, M, D, L, T, C	Set instruction enabled
R	BOOL	I, Q, M, D, L, T, C	Reset instruction enabled
Q	BOOL	I, Q, M, D, L	Signal state of <address>

Description

The Set_Reset Flip Flop instruction executes Set (S) or Reset (R) instructions only when the RLO is 1. An RLO of 0 has no effect on these instructions, the address specified in the instruction remains unchanged.

Set_Reset Flip Flop is set when the signal state at input S is 1 and the signal state at input R is 0. If input S is 0 and input R is 1, the flip flop is reset. If the RLO at both inputs is 1 the flip flop is reset.

The Set_Reset Flip Flop instruction is affected by the Master Control Relay (MCR). For more detailed information about how the MCR functions, refer to MCR on/off.

Status Word

	BR	CC 1	CC 0	OV	OS	OR	STA	RLO	FC
writes	-	-	-	-	-	X	X	X	1