You can download the STEP 7 V5.6 SP2 (including S7-GRAPH V5.6 SP2 and STEP 7 Professional 2017 SR2) directly from the official Siemens Industry Online Support
Reinstall PLC-SIM separately from the Step 7 DVD. Ensure no other simulator (e.g., PLCSIM Advanced) is installed simultaneously. siemens step 7 5.6 sp2 download
You can download a 21-day trial for free to test the software. You can download the STEP 7 V5
STEP 7 V5.6 SP2 is a legacy Siemens engineering package for classic S7 PLCs. Download and install only from Siemens or authorized partners with a valid license; check system requirements and release notes, and consider migrating to TIA Portal for newer systems. Siemens TIA Portal (Totally Integrated Automation) is the
Siemens provides official access through the portal. Because the software is subject to export restrictions, you must have a registered account to access these files.
Once you have obtained the legitimate installer, follow this strict procedure. Failure to do so results in installation rollbacks, registry errors, or communication failures.
Many Siemens partners provide pre-configured containing Step 7 V5.6 SP2 on Windows 10 LTSC. These are licensed and legal if you own the license. Search for "SIMATIC Virtualization as a Service".