Creating Your User Program; Earlier Versions Of Step 7-Micro/Win Projects - Siemens SIMATIC S7 System Manual

Programming concepts

5.3 Creating your user program

5.3 Creating your user program
The STEP 7-Micro/WIN SMART user interface provides a convenient working space for
creating your user project program. (STEP 7-Micro/WIN SMART projects are files with a
.smart file name extension.) To open the user interface, double-click the
STEP 7-Micro/WIN SMART icon, or select "STEP 7-MicroWIN SMART" from the "SIMATIC"
element on the "Start" menu.
5.3.1

Earlier versions of STEP 7-Micro/WIN projects

To work with a project that was created in STEP 7-Micro/WIN Version 4.0 or greater, follow
these steps:
● Click the Open button from the Operations area of the File menu ribbon strip and select
the desired project.
● Correct program as needed.
You cannot open projects that were created with a version earlier than STEP 7-Micro/WIN
Version 4.0. If you attempt to open such a project, STEP 7-Micro/WIN SMART informs you
that you cannot open the project.
Note
Opening projects created with an older version
• Projects from earlier versions of STEP 7-Micro/WIN (.mwp files) might contain one or
more logical constructs that STEP 7-Micro/WIN SMART does not support.
STEP 7-Micro/WIN SMART omits the instructions that it does not support when opening
the project. You must take care to examine your project and redesign sections where
STEP 7-Micro/WIN SMART omitted program logic.
• STEP 7-Micro/WIN SMART ignores the system block of the old project and uses a default
system block for the opened project.
• STEP 7-Micro/WIN SMART omits all wizard-generated program blocks of the old project.
• You cannot use Open to open a project that resides on a PLC. The project file must
reside on your personal computer/ programming device.
• You can only open one project for each instance of STEP 7-Micro/WIN SMART. You
must run two instances of STEP 7-Micro/WIN SMART to have two projects open at the
same time. When two instances are open, you can copy and paste LAD/ FBD program
elements and STL text from one project to the other.
• You can define a default project folder where you want STEP 7-Micro/WIN SMART to
open and save new projects.
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