Arithmetic instructions
410
Part III FP Instructions
F313_FDIV
Floating Point Data Divide
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 DIV (see page
64). Please refer also to Advantages of the IEC instructions in the online help.
PLC types
Availability of F313_FDIV (see page 1324)
This instruction cannot be programmed in the interrupt program.
Variable Data type Function
s1 REAL Real number data for dividend.
s2 REAL Real number data for divisor.
d REAL 32-bit area for result (destination).
For Relay T/C Register Constant
s1, s2 DWX DWY DWR DWL DSV DEV DDT DLD DFL -
d - DWY DWR DWL DSV DEV DDT DLD DFL -
No. IEC address Set If
R9007 %MX0.900.7 permanently
R9008 %MX0.900.8 for an instant
data other than real number data is
specified in s1 and s2.
the real number data (floating point data)
for the divisor specified by s2 is "0.0".
R9009 %MX0.900.9 for an instant the result is overflowed.
Description
The real number data specified by s1 is divided by the real number data specified by s2 when the
trigger turns on. The result is stored in d.
Data types
Operands
Error flags
Example
In this example, the same POU header is used for all programming languages. For an example
using IL (instruction list), please refer to the online help.
POU header
All input and output variables used for programming this function have been declared in the POU
header.
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