Generate config error: Keyword 'On' cannot be used as identifier in datatypeworksheet.

[martinboers]

To reproduce with plcncli 25.0.0.5997:

• Create a new project.

• Add the following GDS port variable to the program .hpp file:

   struct SampleStruct
   {
      uint32 On;
   };
  
   //#port
   //#attributes(Input)
   SampleStruct myStructure;

• Assign a target to the project.

• plcncli generate config

... results in the following error:

Keyword 'On' cannot be used as identifier in datatypeworksheet.

Why is "On" considered a keyword? As far as I am aware, this is not a keyword in C++.

Is there a complete list of keywords that cannot be used like this?

[mluhmann]

Hi Martin, this is due to keywords reserved by IEC which can not be identifier in datatypeworksheets.
Here the ARRAY of all keywords for this error.

[martinboers]

Thanks Marcel.

Just to clarify - why is this rule necessary when the following is possible in PLCnext Engineer?

That is, the same keyword is used as an element in a struct definition, which is used as the type of an IN GDS port. That PLCnext Engineer project builds successfully.

[Christoph-Spallek]

Keyword "On" will be allowed
List will be synchronized with PLCnext Engineer

Internal Polarion Item #5796