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F160_DSQR
The square root of the 32-bit data or constant value specified by s is calculated if the trigger EN is
Description
in the ON-state. The result (square root) is stored in d.
The figures of the first decimal place and below are disregarded.
Example value 64
Bit
31 . . 28 27 . . 24 23 . . 20 19 . . 16
Binary
0 0 0 0
Decimal
Trigger: ON
Result value 8
31 . . 28 27 . . 24 23 . . 20 19 . . 16
Bit
Binary
0 0 0 0
Decimal
This instruction also exists as a P instruction (for FP2/2SH, FP3/5, FP10/10SH PLC types), which
is only executed at the rising edge of the EN trigger. Select [Insert P instruction] from the
"Instructions" pane if you require a P instruction. To facilitate reuse, the instruction then appears
under "Recently used" in the pop-up menu. Press <Ctrl>+<Shift>+<v> within the programming
area to open the list of recently used elements.
Instead of using this FP instruction, we recommend using the related IEC instruction SQRT (see
page 68). Please refer also to Advantages of the IEC instructions in the online help.
Availability of F160_DSQR (see page 1321)
PLC types
Data types
Variable
Data type
DINT, DWORD
s
DINT, DWORD
d
The variables s1 and d have to be of the same data type.
Operands
For
DWX DWY DWR
s
d
32-bit data square root
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
Function
source, 32-bit area to be calculated
square root (decimal places deleted)
Relay
DWL
DSV
-
DWY DWR
DWL
DSV
15 . . 12 10 . . 8 7 . . 4 3 . . 0
0 0 0 0
0 0 0 0
0 1 0 0
64
32-bit area
15 . . 12 10 . . 8 7 . . 4 3 . . 0
0 0 0 0
0 0 0 0
0 0 0 0
8
T/C
Register
DEV
DDT
DLD
DFL
DEV
DDT
DLD
DFL
Arithmetic instructions
0 0 0 0
0 1 0 0
Constant
dec. or hex.
-
415
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