Performing the following steps on an XLD file causes the alias to get lost.

• Export the logic section from a project that contains alias to the DDT reference in the logic.
• Edit the XLD file using a text editor (i.e., WordPad, etc.)  to rename a variable.
• Saving the changes.
• Importing he XLD file back into the same project results, in the renamed variable not being shown in the 'Import Trouble Report' window and the alias getting deleted from the associated Device DDT variable..

i.e.,

• 

Figure 1.     Before editing the XLD file.


Figure 2   After editing the XLD file.

The alias gets lost because when the variable is renamed in the XLD file, the new name does not get associated in the unique
DDT variable 'ManageKet' attribute (See example below).  This managed key is generated by Control Expert using the variable name that is aliased with a DDT variable.



The XLD file is not intended to be edited by the user..  The purpose of the XLD export file is intended for a user to be able export a logic section and import into another Control Expert project.

Publié pour: Schneider Electric Belgium