Siemens SINUMERIK 828D Commissioning Manual page 758

Generating user dialogs
1.1 Scope of functions
6. Variables
– Read (NC, PLC and user variables)
– Write (NC, PLC and user variables)
– Combine with mathematical, comparison or logic operators
7. Execute functions:
– Subprograms
– File functions
– PI services
8. Apply protection levels according to user classes
The valid elements (tags) for the script language are described in the "XML tags" (Page 14)
section.
Note
The following section is not intended as a comprehensive description of XML (Extensible
Markup Language). Please refer to the relevant specialist literature for additional information.
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Programming Manual, 10/2015, 6FC5397-3DP40-5BA3
Easy XML