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Convert PanelBuilder 1400e Expressions

Some PanelBuilder expression syntax is not supported in FactoryTalk View Studio's expression language. Therefore PanelBuilder 1400e expressions are converted to Machine Edition without being modified, and are then disabled. Warning text is placed at the beginning of each expression, and exclamation points (!) are placed at the beginning of each subsequent line.

Some PanelBuilder 1400e objects support both tags and expressions. For these objects, if the text assigned to a connection could be valid syntax for both a tag and an expression, the connection is treated as an expression, and is therefore disabled.

For example, N20-0_String_64 could be the name of a tag, or it could be an expression that subtracts "0_String_64" from the tag "N20." The text would be converted as a disabled expression.

To enable a converted expression

  1. Select the object containing the expression.
  2. Open the object's Property Panel and click the Connections tab.
  3. In the Exprn column, click the Browse button beside the expression.
  4. In the Expression editor, delete the warning text and the exclamation marks.
  5. Click Check Syntax.

If necessary, revise the expression to use FactoryTalk View expression language.

Equivalent expression syntax

Type of expression component or operator

PanelBuilder 1400e syntax

Equivalent FactoryTalk View syntax (if any)

Comment

REM or ’

!

Line continuation

_ (underscore)

not needed

Equality

( = )

EQ or ==

Bitwise Not
Bitwise And
Bitwise Or
Bitwise Xor

If both operands are Byte, Integer, Long, Variant, or any combination of these data types, use the FactoryTalk View syntax.

For other data types, no change is needed.

Not
And
Or
Xor

~ (tilde)
&
| (pipe)
^

Exit statement

Exit

not needed

Local variables

DIM varname AS ...

varname =

 

Integer division

\

(x - (x MOD y))/y

Endif

If then endif
If then else endif

If then else 0
If then else

Select case

SelectCase
Case1...CaseN
CaseElse
EndSelect

Use nested if then else

Logical Xor (if one or both operands are Boolean or Single data types)

Xor

NOT ((x AND y)

OR NOT (x OR y))

Order of precedence

The order of precedence is slightly different in FactoryTalk View. Check your expressions to make sure the result is what you intend.

PanelBuilder 1400e order of precedence

FactoryTalk View order of precedence

( )

( )

- (negation)

NOT, ~ (tilde)

*, / (floating point division)

 *, /, MOD, %, **, AND, &&, &, >>, <<

\ (integer division)

+, -, OR, ||, |, ^

Mod

EQ, ==, NE, <>, LT, <, GT, >, LE, <=, GE, >=

+, - (subtraction)

 

=, <>, <, >, <=, >=

 

Not

 

And

 

Or

 

Xor

 

See also

PanelBuilder 1400e Objects and Features Not Converted to ME

PanelBuilder 1400e to Machine Edition object mappings

About expressions

Operator precedence in expressions