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5 SEQUENCE INSTRUCTIONS
5.4 Shift Instructions
Shifting n-bit data to the left by n bit(s)
SFTL(P)
These instructions shift (n1) bits of data to the left by (n2) bit(s) from the device specified by (d).
■Descriptions, ranges, and data types
*1 Set so that n2n1.
■Applicable devices
*1 T, ST, C cannot be used.
*2 Only 0 or 1 can be used.
• These instructions shift (n1) bits of data to the left by (n2) bit(s) from the device specified by (d). After the shift, (n2) points
from (s) are set into (n2) points from (d).
• When K0 is specified for (s), set 0s for (n2) points of bits from (d) after the shift.
• When K1 is specified for (s), set 1s for (n2) points of bits from (d) after the shift.
Ladder diagram Structured text
ENO:=SFTL(EN,s,n1,n2,d);
ENO:=SFTLP(EN,s,n1,n2,d);
Operand Remarks Range Data type Data type (label)
(s) Head device number stored to the shift data after the shift Bit ANY_BOOL
(d) Head device number to be shifted Bit ANY_BOOL
(n1)
*1
Data length of shift data 0 to 65535 16-bit unsigned binary ANY16_U
(n2)
*1
Number of shifts 0 to 65535 16-bit unsigned binary ANY16_U
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 $
(s)
*1
*2
(d)
*1
(n1)
(n2)
Error code
(SD0/SD8067)
Remarks
2820 The (n2) points of data starting from the device specified by (s) exceed in the corresponding device.
The (n1) points of data starting from the device specified by (d) exceed in the corresponding device.
2821 The transfer source data (s) overlaps with shift device (d).
3405 A constant other than K0 or K1 is specified when the constant (s) is specified.
The values specified in (n1) and (n2) are such that (n1)<(n2).
110111101
110100000
0
1
(n1)
(n2)
(d)+9 (d)+8 (d)+7 (d)+6 (d)+5 (d)+4 (d)+3 (d)+2 (d)+1 (d)
(d)+9 (d)+8 (d)+7 (d)+6 (d)+5 (s)+4 (s)+3 (s)+2 (s)+1 (s)
When (s)=K0, it is 0.
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