Technical data

Programming with STEP 7
Manual, 05/2010, A5E02789666-01 185
7 Editing Projects with Different Versions of STEP 7
7.1 Editing Version 2 Projects and Libraries
Version V5.2 of STEP 7 no longer supports Changes in V2 Projects. When you edit V2 projects
or libraries, inconsistencies can occur such that V2 projects or libraries can no longer be edited
with older versions of STEP 7.
In order to continue to edit V2 projects or libraries, a STEP 7 version older that V5.1 must be used.
7.2 Expanding DP Slaves That Were Created with Previous Versions
of STEP 7
Constellations That Can Be Formed by Importing New *.GSD Files
New DP slaves can be accepted by the HW Config if you install new device database files (*.GSD
files) into the Hardware Catalog. After installation, they are available in the Other Field Devices
folder.
You cannot reconfigure or expand a modular DP slave in the usual manner if all of the following
conditions exist:
• The slave was configured with a previous version of STEP 7.
• The slave was represented in the Hardware Catalog by a type file rather than a *.GSD file.
• A new *.GSD file was installed over the slave.
Remedy
If you want to use the DP slave with new modules that are described in the *.GSD file:
• Delete the DP slave and configure it again. Then the DP slave is described completely by the
*.GSD file, not by the type file.
If you do not want to use any new modules that are described only in the *.GSD file:
• Under PROFIBUS-DP in the Hardware Catalog window, select the "Other FIELD
DEVICES/Compatible PROFIBUS-DP Slaves" folder. STEP 7 moves the "old" type files into
this folder when they are replaced by new *.GSD files. In this folder you will find the modules
with which you can expand the already configured DP slave.