Not possible to create OLT-field within one FBD-editor whereas it is possible within another one

Symptom: Within one FBD-editor, it is possible to create →OLT-fields. Within a different FBD-editor, it is not possible to create OLT-fields.

Cause: It is not possible to create OLT-fields within any FBD-editor.

For which elements is it possible to create an OLT-field?

The following principles are valid:

Within the FBD-editor for →programs or →function blocks, an OLT-field can be created for elements that have a value during the execution on the →PLC.
Within the FBD-editor for →functions, an OLT-field cannot be created at all.

If the creation of OLT-fields is possible within the FBD-editor, it is possible ( ) or not ( ) to create an OLT-field for the following elements:

Element	An OLT-field can be created.
a →value field containing a declared →variable
another value field (e.g. with a constant literal)	Restriction: At present, no values are displayed within such OLT-fields.
an input or output of a →function block instance
a function block instance itself
a `FORCEMRK` block An OLT-field for a `FORCEMRK` block differs from an OLT-field for the other elements (see examples under "OLT-fields for force marker"
an output of a →call of a →function	Restriction: These OLT-fields display a value in case of the logi.CAD 3 default scope. If e.g. a system integrator has deactivated the d ebugging feature for FBD, the OLT-fields for function outputs do not display a value.
an input of a →call of a →function
a function itself
an SFC-element In particular, for the following part of the SFC-element: the step marker output of a→step the input for the transition condition of a →transition the input and output of an →action block	Restriction: At present, no values are displayed within the OLT-fields for SFC-elements.
→connector and →continuation

More useful information:

logi.cals recommends to install and use the most current versions of logi.CAD 3 and the runtime system so that the latest features and problem fixes according to the release notes are provided in the used version.

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