8 APPLICATION INSTRUCTION
8.1 Rotation Instruction
377
8
Rotating 32-bit data to the right
DROR(P), DRCR(P)
• DROR(P): These instructions rotate the 32-bit binary data in the device specified by (d) to the right by (n) bit(s) (not
including the carry flag).
• DRCR(P): These instructions rotate the 32-bit binary data in the device specified by (d) to the right by (n) bit(s) (including
the carry flag).
*1 The DROR instruction is not supported by the ST language and the FBD/LD language. Use ROR of the standard function.
Setting data
■
Descriptions, ranges, and data types
■
Applicable devices
Processing details
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DROR(P)
• These instructions rotate the 32-bit binary data in the device specified by (d) to the right by (n) bit(s) (not including the carry
flag). The carry flag is on or off depending on the status prior to the execution of the instruction.
• When (d) is a bit device, bits are rotated to the right within the device range specified by nibble specification. The number of
bits actually to be rotated is the remainder of (n)
(specified number of bits). For example, when (n) is 31 and the specified
number of bits is 24, 7 bits are rotated because 31 divided by 24 equals 1 with a remainder of 7.
• Specify any value between 0 and 31 for (n). If a value 32 or bigger is specified, bits are rotated by the remainder value of
n
32. For example, when (n) is 34, 2 bits are rotated because 34 divided by 32 equals 1 with a remainder of 2.
Ladder diagram
Structured text
ENO:=DRORP(EN,n,d);
ENO:=DRCR(EN,n,d);
ENO:=DRCRP(EN,n,d);
FBD/LD
Operand
Description
Range
Data type
Data type (label)
(d)
Head device number where the rotation target data is stored
32-bit signed binary
ANY32
(n)
Number of rotations
0 to 31
16-bit unsigned binary
ANY16
EN
Execution condition
Bit
BOOL
ENO
Execution result
Bit
BOOL
Operand
Bit
Word
Double word Indirect
specification
Constant
Others
X, Y, M, L, SM,
F, B, SB, S
T, ST, C, D, W,
SD, SW, R
U
\G
Z
LC
LZ
K, H
E
$
(d)
(n)
(d)
(n)
EN
ENO
d
n
b0
b15
b31
b16
b30 b29 b28 b27
b18 b17
b14
b5 b4 b3 b2 b1
(d)+1
(d)
(SM700, SM8022)
Rotating n-bit data to the right
Summary of Contents for MELSEC iQ-F FX5
Page 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
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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 ...
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