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Externally Defined Identifiers

Specify the names of identifiers to be suppressed in the generated code

Model Configuration Pane: PLC Code Generation / Identifiers


Specify the names of identifiers for which you want to suppress definitions. You can use your own definitions in place of the suppressed definitions.


( ) (default)

Suppresses the definition of identifiers, such as those for function blocks, variables, constants, and user types in the generated code. This suppression allows the generated code to refer to these identifiers. When you import the generated code into the PLC IDE, you must provide these definitions.


  • Start each name with a letter or an underscore.

  • Each name must contain only letters, numbers, or underscores.

  • Separate the names by using spaces or commas.

Recommended Settings

DebuggingNo impact
TraceabilityNo impact
EfficiencyNo impact
Safety precautionNo impact

Programmatic Use

Parameter: PLC_ExternalDefinedNames
Type: string
Value: string
Default: ''

Version History

Introduced in R2012a