Siemens SIMATIC S7-200 - Set Dominant Bistable; Reset Dominant Bistable

IEC 1131-3 Instructions
10-7
S7-200 Programmable Controller System Manual
A5E00066097-02
Set Dominant Bistable
The Set Dominant Bistable is a latch where the set
dominates. If the set (S1) and reset (R) signals are both
true, the output (OUT) will be true.
The xxxx function block parameter specifies the Boolean
parameter that is set or reset. The optional output
reflects the signal state of the xxxx parameter.
Inputs/Outputs Operands Data Types
S1, R (LAD) Power Flow BOOL
S1, R (FBD) I, Q, M, SM, T, C,V, S, Power Flow BOOL
OUT (LAD) Power Flow BOOL
OUT (FBD) I, Q, M, SM,T, C, V, S, L, Power Flow BOOL
xxxx I, Q, M, V, S BOOL
Reset Dominant Bistable
The Reset Dominant Bistable is a latch where the reset
dominates. If the set (S) and reset (R1) signals are both
true, the output (OUT) will be false.
The xxxx function block parameter specifies the Boolean
parameter that is set or reset. The optional output
reflects the signal state of the xxxx parameter.
Inputs/Outputs Operands Data Types
S, R1 (LAD) Power Flow BOOL
S, R1 (FBD) I, Q, M, SM, T, C, V, S, L, Power Flow BOOL
OUT (LAD) Power Flow BOOL
OUT (FBD) I, Q, M, SM, T, C,V, S, L, Power Flow BOOL
xxxx I, Q, M, V, S BOOL
L
A
D
L
A
D
F
B
D
SR
S1
R
OUT
xxxx
222 224
✓✓✓
221 226
✓
L
A
D
F
B
D
RS
S
R1
OUT
xxxx
222 224
✓✓
226
✓✓
221