Siemens SINUMERIK 840Di Function Manual page 1269

Fig. 2-21
The NC VAR selector is used to generate a list of selected variables from a list of variables
and then to generate an .awl file that can be compiled by the STEP7 compiler.
• A *.awl file contains the names and alias names of the NC variables, as well as
• The generated data blocks must always be stored in the machine-specific file storage
• To ensure that the parameterization of the GET/PUT (FB 2/3) blocks with respect to NC
PLC Basic Program Solution Line (P3 sl)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Application of NC VAR selector in the STEP7 environment
information about their address parameters. Any data block generated from this file will
only contain the address parameters (10 bytes per parameter).
according to STEP7 specifications.
addresses can be implemented with symbols, the freely assignable, symbolic name of the
generated data block must be included in the STEP7 symbol table.
2.11 General conditions and NC-VAR_Selector
Detailed Description
2-75