Bit Left Shift - Mitsubishi Electric Melsec Q Series Programming Manual

5 OPERATION CONTROL PROGRAMS
5.5.6 Bit left shift : <<
Format
[Usable data]
Setting
16-bit
data
Bit device
integer
type
(S1) —
(S2) —
[Setting data]
Setting data
[Functions]
[Errors]
[Program examples]
(S1) << (S2)
Word device
64-bit
32-bit
floating
integer
point
type (L)
type (F)
—
—
(S1)
(S2)
(1) The data specified with (S1) is shifted to the left by the number of times specified
with (S2).
(2) 0 enters the least significant bit of the left shift result.
(3) When (S1) is a 16-bit integer type and (S2) is a negative number or not less than
16, the result is 0.
(4) When (S1) is a 32-bit integer type and (S2) is a negative number or not less than
32, the result is 0.
(1) An operation error will occur if:
• (S1) or (S2) is an indirectly specified device and its device No. is outside the
range.
(1) Program which shifts #0 one bit position to the left and substitutes the result to D0
D0 = #0 << K1
b15
D0
0 1 0 0 1 0 1 0 0 1 1 0 1 0 0 0
Usable Data
Constant
16-bit 32-bit
Coasting
integer integer type
timer
type (K/H) (K/H, L)
Description
Data to be left-shifted
Number of left shifts
b0
#0
5 - 25
F/FS
Number of basic steps
64-bit
Calculation
conditional
floating
expression
expression
point
type (K)
—
—
Data type of result
Data type of (S1)
(Integer type)
b15 b0
0 0 1 0 0 1 0 1 0 0 1 1 0 1 0 0
G
4
Bit Comparison
conditional
expression
— —
— —
: Usable