Lenze PLC Designer PLC Designer (R2-x) - Manual (Page 53)

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What is What in PLC Designer

DMS 3.2 EN 02/2011 TD29 51
It is also possible in IL to put parentheses after an operation. The value of the
parenthesis is then considered as an operand.
For example:
LD 2
MUL 2
ADD 3
Erg
Here is the value of Erg 7. However, if one puts parentheses:
LD 2
MUL (2
ADD 3
)
ST Erg
the resulting value for Erg is 10, the operation MUL is only then evaluated if you come
to ")"; as operand for MUL 5 is then calculated.