1052
27 BISTABLE FUNCTION BLOCKS
27.2 Bistable Function Blocks (Reset Priority)
27.2
Bistable Function Blocks (Reset Priority)
RS(_E)
These function blocks judge two input values and output 1 (TRUE) or 0 (FALSE).
Setting data
■
Descriptions, types, and data types
Processing details
■
Operation processing
• When (s1) turns ON, (d) is set. When (s2) is turned ON, (d) is reset.
• If (s1) is turned ON when (s2) is ON, (d) is not set.
■
Operation result
1.
Function block without EN/ENO
The operation processing is executed. The operation output value is output from (d).
• Timing chart
Ladder diagram, FBD/LD
Structured text
[Without EN/ENO]
[With EN/ENO]
[Without EN/ENO]
RS_1(S:=s1,R1:=s2,Q1:=d);
[With EN/ENO]
RS_E_1(EN:=EN, ENO:=ENO, S:=s1,R1:=s2,Q1:=d);
Argument
Description
Type
Data type
EN
Execution condition (TRUE: Execution, FALSE: Stop)
Input variable
BOOL
s1(S)
Set instruction
Input variable
BOOL
s2(R1)
Reset instruction
Input variable
BOOL
ENO
Output status (TRUE: Normal, FALSE: Abnormal)
Output variable
BOOL
d(Q1)
Output
Output variable
BOOL
(1): When (s1) is on and (s2) is off, (d) turns on.
(2): When (s2) is on, (d) turns off.
s1
d
s2
EN
ENO
d
s1
s2
OFF
ON
ON
ON
ON
ON
ON
(s1)
OFF
OFF
ON
OFF
ON
ON
ON
OFF
ON
OFF
ON
ON
(s2)
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
ON
(d)
(1)
(2)
Summary of Contents for MELSEC iQ-F FX5
Page 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 17: ...15 CONTENTS ...
Page 24: ...22 MEMO ...
Page 1050: ...1048 26 TIME DATA FUNCTIONS 26 4 Division MEMO ...
Page 1068: ...1066 29 COUNTER FUNCTION BLOCKS 29 4 Counter Function Block Operation error There is no error ...
Page 1107: ...I 1105 MEMO ...
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