Siemens SINUMERIK 840D sl Function Manual page 913

Code generation
This menu item contains three selection options:
1. Settings (input of data block number to be generated) and other settings
2. Generate (create data block)
3. In the STEP 7 project (transferring the data block to a STEP 7 project)
Settings
Under this menu item, the DB number and the symbol for this DB number for which the code
is created is entered.
Under the "Mass System" tab, a selection is made to determine how the unit system variables
are calculated in the PLC.
Under the "Generate" tab, the project creation is defined for the relevant target system.
Generate
Under this menu item, the STEP 7 file from the selected variable list with extension ".awl" is
set.
A file is generated when "Select" is clicked:
An .awl file that can be used as an input for the STEP 7 compiler.
A window opens, in which path and name for the .awl file to be generated must be specified
for the file to be saved.
In STEP 7 project
The generated STL file is transferred to a selectable SIMATIC project (program path) and
compiled. Furthermore, the symbol can also be transferred. This function is available as of
STEP 7 Version 5.1. This process takes a longer time owing to the call of STEP 7. Before
transferring a new STL file the file window of the STL file is to be closed in the LAD/FBD/STL
editor.
Option menu item
The following can be selected under the "Option" menu item:
● The current language
● The mode for alias input (always / > 24 characters)
Help menu item
The information below can be viewed by selecting the corresponding submenu item:
● The Operating Manual
● The Description of Variables
The copyright and the version number can also be displayed.
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
P3: Basic PLC program for SINUMERIK 840D sl
13.16 Basic conditions and NC VAR selector
913