Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 220)

L-force | PLC Designer
Symbol configuration
218 DMS 4.1 EN 03/2011 TD29
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Symbol information:
The symbols defined for an application get exported to a xml-file in the project
directory (symbol file). This file is named according to the following syntax:
<project name>.<device name>.<application name>.xml.
for example proj_xy.PLC1.application.xml
Note: The symbol file will be created, when the "Generate code" command is
executed in the "Build" menu.
Further on the symbol information gets downloaded to the PLC with the application.
Depending on the device description it will be included in the application or a separate
child application will be generated, which then also will be listed in the Applications
dialog of the PLC device editor. The syntax of a separate symbol application:
<application name>._Symbols
for example if application "application", for which a symbol configuration has been
defined, gets downloaded, the symbol information will be downloaded as
"<application name>.__Symbols":
Abb. 68 Example, Application and "symbol application"
If the symbol configuration has been modified in online mode, it can be explicitly re-
loaded to the controller using button Download in the editor window..
For example concerning the maximum number of applications on a PLC the symbol
application must be noticeed like a "normal" application.