Technical data

Editing Projects with Different Versions of STEP 7
7.2 Expanding DP Slaves That Were Created with Previous Versions of STEP 7
Programming with STEP 7
186 Manual, 05/2010, A5E02789666-01
Constellation after Replacement of Type Files by GSD Files in STEP 7 V5.1 Service Pack 4
As of STEP 7 V5.1, Service Pack 4, the type files have been either updated or largely replaced by
GSD files. This replacement only affects the catalog profiles supplied with STEP 7, not any catalog
profiles that you may have created yourself.
DP slaves whose properties were previously determined by type files and are now determined by
GSD files are still located in the same place in the hardware catalog.
The "old" type files were not deleted but moved to another place in the hardware catalog. They are
now located in the catalog folder "Other field devices\Compatible PROFIBUS DP slaves\...".
Expanding an Existing DP Configuration with STEP 7, as of V5.1 Service Pack 4
If you edit a project that was created with a previous version of STEP 7 (earlier than V5.1, SP4)
and you want to expand a modular DP slave, then you cannot use the modules or submodules
taken from the usual place in the hardware catalog. In this case, use the DP slave found at "Other
FIELD DEVICES\Compatible PROFIBUS DP slaves\...".
Editing a DP Configuration with an Earlier Version of STEP 7 V5.1, SP4)
If you configure an "updated" DP slave with STEP 7 as of V5.1, Service Pack 4 and then edit the
project with a previous version of STEP 7 (earlier than STEP 7 V5.1, SP4), you will not be able to
edit this DP slave since the GSD file used is unknown to the previous version.
Remedy: You can install the required GSD file in the previous version of STEP 7. In this case, the
GSD file is stored in the project. If the project is subsequently edited with the current STEP 7
version will use the newly installed GSD file for the configuration.