Panasonic FP Series - Page 590

Bit-shift instructions
589
Part III FP Instructions
Example
In this example the function has been programmed in ladder diagram (LD) and structured text
(ST).The same POU header is used for all programming languages.
POU header
All input and output variables used for programming this function have been declared in the POU
header.
Body
When the variable start changes from FALSE to TRUE, the function is carried out.
LD
ST
When programming with structured text, enter the following:
IF DF(start) THEN
F121_ROL( n:= 4,
d=> rot_value);
END_IF;