StringTable

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 FunctionClosed A function calculates a result according to the current value of its inputs. A function has no internal data and is not linked to declared instances. - Selects the active string table resource.

Inputs

Input

Data Type

Range

Unit

Default

Description

TABLE

STRING

 

 

 

Name of the Sting Table resource.

Must be a constant.

COL

STRING

 

 

 

Name of the column in the table.

Must be a constant.

Outputs

Output

Data Type

Range

Unit

Description

Q

BOOL

FALSE, TRUE

 

TRUE if OK.

Remarks

  • This function selects a column of a valid String Table resource to become the active string table.
    • The LoadString function always refers to the active string table.
  • Arguments must:
    • be constant string expressions.
    • fit to a declared string table and a valid column name within this table.
  • If there is only one string table with only one column defined in the project, you do not need to call this function.
    • It is the default string table.

FBD Language Example

FFLD Language Example

IL Language Example

Op1: LDClosed Ladder diagram - This is a method of drawing electrical logic schematics. It is a very popular graphical language for programming Programmable Logic Controllers (PLCs). It was originally invented to describe logic made from relays. The name is based on the observation that programs in this language resemble ladders, with two vertical rails and a series of horizontal rungs between them.
     'MyTable'
     StringTable 'First Column'
     STClosed Structured text - A high-level language that is block structured and syntactically resembles Pascal.
OK

ST Language Example

OK := StringTable ('MyTable', 'FirstColumn");

See Also