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Expression components, Expression components – 3 – Rockwell Automation FactoryTalk View Site Edition Users Guide User Manual

Page 549

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20

C

REATING

EXPRESSIONS

20–3

• •

20

Pla
ceho

lde

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Expression components

You can build an expression using any of the following components:

Tag values (or tag placeholders)

Constant values

Mathematical, relational, logical, and bitwise operators

Built-in functions

If-then-else logic

To select components, click the following buttons in the Expression box or editor.

To open this list

Click

If-then-else operators

Logical operators

Relational operators

Arithmetic operators

Bitwise operators

Built-in functions

Tags (in the Tag Browser)

FactoryTalk alarms (in the Alarm
Source Browser)

Click *** to open the
Expression editor.

If the button has no
caption, the property
does not allow an
expression.