He scrambled through the project tree. The logic was running, but the motion instructions were throwing a Major Fault. Type 11: Motion Fault. The code was verified, the logic was sound, but the hardware handshake was dead.
The most profound, verified change in v35 is the elevation of capabilities. Prior versions (v33, v34) offered basic authentication (Level 1) and device identity. v35 introduces verified support for CIP Security Level 3 – Encrypted Sessions . studio 5000 v35 release notes verified
In response to recent industrial cyber incidents (e.g., ICS-CERT alerts), v35 introduces verified security controls: Deconstructing Stability and Security: A Verified Deep Dive