The Elements of a DCO-Script

Formulas

5.3Formulas

Formulas can be used nearly everywhere, e.g. to describe the values of attributes or in func- tions (see below).

Formulas are computing instructions that are used to carry out logic operations with integers or concatenated strings.

All Formulas applied in a DCO-Script are output in @( and )@ .

Every Formula consists of a statement with a minimum of 2 elements and a logic operation that lies between these two elements.

For example, if you take the strictly numeric statement @(1 + 2)@, the integers 1 and 2 rep- resent the elements whereas the + sign represents the logic operation.

Logic operations can be mathematical signs or keywords. You can also add further brackets to a Formula to add additional statements, e.g. @(1 + ( 2 * 28 ) )@.

>In every Formula, a space character must be entered in front of and after every state- ment and in front of and after each logic operation.Note:

The following rules apply:

●Every Parameter, Variable, or Control (see below) as well as every direct entry can be an element of a statement.

●All elements in a Formula must be of the same data type (e.g. STRING).

●Do not use any Control names in the Control attributes (see below).

●Every Formula is processed from left to right and in keeping with the the mathematical rule "first multiplication and division, then addition and subtraction".

List of logical operations in Formulas:

 

Logical opera-

 

Effect on

Effect on

 

tion

 

numeric elements

text elements

 

 

 

 

 

 

+

 

Adds the two integers

Connects two texts

 

or

 

 

 

 

ADD

 

 

 

 

 

 

 

 

 

-

 

Subtracts the second integer

(no function)

 

or

 

from the first

 

 

SUB

 

 

 

 

 

 

 

 

 

*

 

Multiplies the two integers with

(no function)

 

or

 

each other

 

 

MUL

 

 

 

 

 

 

 

 

 

Table 5-3

List of logical operations in Formulas

07/2010

 

 

 

OScAR-Pro Customized Operator, User Manual

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Siemens A31003-51730-U103-7619 user manual Formulas, Mul
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