Toshiba PROSEC T1 T1S, 6F3B0250 FUN 147 F/F Flip-flop

6F3B0250
Basic Hardware and Function 233
7. Instructions
FUN 147 F/F Flip-flop
Expression
Set input - S F/F Q - Output
Reset input - R
A
Function
When the set input is ON, the device
A
is set to ON. When the reset input is ON, the device
A
is reset
to OFF. When both the set and reset inputs are OFF, the device
A
remains the st ate. If both the set
and reset inputs ar e ON, the device
A
is reset to OFF.
The stat e of the output is t he same as the device
A
.
Execution condition
Set
input Reset input Operation Output
OFF OFF No execution (
A
remains previous state) Same
ON Resets
A
to OFF as
A
ON OFF Sets
A
to ON
ON Resets
A
to OFF
Operand
Name Device Re
g
ister Constant Index
X Y R S T. C. XW YW RW SW T C D I J K
A
Device ÖÖÖ
Example
When X 003 is O N, R10E is set to ON. When X004 is ON, R10E is reset to OFF. If both are ON,
R10E is reset to OFF.
An example timing diag r am is shown below.
X003
X004
R10E
Note
· For the set input , direct linking to a connecting point is not allowed. In this case, insert a dum m y
contact (always ON = S04F, etc.) just bef ore the input. Refer to Note of Shift register FUN 074.
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