
5 SEQUENCE INSTRUCTIONS
5.4 Shift Instructions
127
5
Shifting 16-bit data to the right by n bit(s)
SFR(P)
These instructions shift the 16-bit data in the device specified by (d) to the right by (n) bit(s).
Setting data
■
Descriptions, ranges, and data types
■
Applicable devices
Processing details
• This instruction shifts the 16-bit data in the device specified by (d) to the right by (n) bit(s) from the most significant bit. The
(n) bit(s) from the most significant bit is/are filled with 0(s).
• When (d) is a bit device, bits are shifted to the right within the device range specified by nibble specification.
• Specify any value between 0 and 15 for (n). If a value 16 or larger is specified for (n), bits are shifted to the right by the
remainder value of (n)
16. For example, when (n) is 18, data is shifted by 2 bits to the right because 18 divided by 16
equals 1 with a remainder of 2.
■
Related devices
Operation error
There is no operation error.
Ladder diagram
Structured text
ENO:=SFR(EN,n,d);
ENO:=SFRP(EN,n,d);
Operand
Remarks
Range
Data type
Data type (label)
(d)
Head device number where the shift-target data is stored
16-bit signed binary
ANY16
(n)
Number of shifts
0 to 15
16-bit unsigned binary
ANY16
Operand
Bit
Word
Double word
Indirect
specification
Constant
Others
X, Y, M, L,
SM, F, B, SB
U
\G
T, ST,
C, LC
T, ST, C, D,
W, SD, SW, R
U
\G
Z
LC
LZ
K, H
E
$
(d)
(n)
Device
Name
Remarks
SM700
Carry
ON/OFF according to the status (1/0) of the (n-1)th bit.
SM8022
(d)
(n)
1
1
1
0
1
1
1
0
1
1
1
0
1
1
1
0
0
0
0
0
0
0
1
1
1
0
1
1
1
0
1
1
b15
b8
b0
b7
b0
b7
b15
b8
1
b14 b13 b12 b11 b10 b9
b6 b5 b4 b3 b2 b1
b14 b13 b12 b11 b10 b9
b6 b5 b4 b3 b2 b1
(d)
(d)
Carry flag (SM700, SM8022)
These bits become "0".
When (n)=6
1
0
1
0
1
0
1
0
1
0
1
0
0
0
0
0
1
0
1
0
1
0
1
0
Y20
Y10
Y17
Y10
Y17
Y20
1
Y23
Y14 Y13
Y23
Y14 Y13
···
···
···
···
···
···
Carry flag (SM700, SM8022)
When (n)=4
These bits become "0".
Summary of Contents for MELSEC iQ-F FX5 series
Page 1: ...MELSEC iQ F FX5 Series Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 21: ...19 PART 1 PART 1 OVERVIEW Part 1 consists of the following chapter 1 OVERVIEW ...
Page 98: ...96 4 STANDARD FUNCTIONS FUNCTION BLOCKS 4 2 Standard Function Blocks MEMO ...
Page 840: ...838 23 TIME DATA FUNCTIONS 23 4 Division MEMO ...
Page 887: ......