While Distributed Safety V5.6 is stable, it is by Siemens (maintenance phase only). For new projects, consider:
The Silent Guardian: Unpacking the Significance of Simatic S7 Distributed Safety V5.6 Simatic S7 Distributed Safety V5.6 Download
To download Simatic S7 Distributed Safety V5.6, follow these steps: While Distributed Safety V5
.