Table of Contents
Advertisement
Error flags
No.
IEC address
%MX0.900.11
R900B
%MX0.900.9
R9009
In this example, the same POU header is used for all programming languages. For an example
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.
Body
When the variable start is set to TRUE, the function is carried out.
LD
ST
IF
start
THEN
F27_SUB2(minuend, subtrahend, output_value);
END_IF;
Set
If
for an instant
the calculated result is 0.
for an instant
the result exceeds the range of 16-bit
data (overflow or underflow).
Arithmetic instructions
371
Advertisement
Table of Contents
