Mitsubishi Electric MELSEC iQ-F FX5, Programming Manual

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21 BIT SHIFT FUNCTIONS
21.4 n-bit Right Rotation
1007
21
21.4
n-bit Right Rotation
ROR(_E)
These functions rotate an input value rightward by (n) bits and output the result.
Setting data
■
Descriptions, types, and data types
Processing details
■
Operation processing
• These functions rotate the 16-bit or 32-bit data (WORD or DWORD type) input to (s) right by (n) bits and output the result in
the same data type as (s) from (d).
• The number input in (n) is used as the number of right-rotation bits.
Ex.
When the data type of (s) is 16-bit data (WORD) and 3 is input in (n) (The bits are rotated right by 3 bits.)
• The input data to (s) is 16-bit data/32-bit data (WORD or DWORD type).
• A value input to (n) (Number of shift bits) is the INT type data value and within the following range.
Ladder diagram, FBD/LD Structured text
[Without EN/ENO] [With EN/ENO] [Without EN/ENO]
d:=ROR(s,n);
[With EN/ENO]
d:=ROR_E(EN,ENO,s,n);
Argument Description Type Data type
EN Execution condition (TRUE: Execution, FALSE: Stop) Input variable BOOL
s(IN) Input Input variable ANY_BIT
n(N) Number of shift bits Input variable ANY_BIT
ENO Output status (TRUE: Normal, FALSE: Abnormal) Output variable BOOL
d(ROR(_E)) Output Output variable ANY_BIT
When the data of (s) is 16-bit data (WORD) When the data of (s) is 32-bit data (DWORD)
A value in (n) is within 0 to 15.
The lower 4-bit data of the value in (n) is used.
[Example]
When the input value is 6: 6
When the input value is 22: 6 A value in (n) is within 0 to 31.
The lower 5-bit data of the value in (n) is used.
[Example]
When the input value is 6: 6
When the input value is 22: 22
s d
n
EN ENO
s d
n
n-bit rotation
WORD, DWORD
Data of 1)
IN (WORD)
270FH E4E1H
WORD
0 1 0 0 1 0 0 0 1 1 1 0 0 1 1 1
270FH
0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 E4E1H
Data of 2)
1) 2)