Or worse: “Unable to open. Expected revision 30.11, found revision 33.00.”

If you have been in the Rockwell Automation world for more than six months, you have heard the dreaded phrase: “This project was created in a newer version of Studio 5000. Please upgrade your software.”

v20 → v21 → v24 → v28 → v30 → v31 → v32 → v33 → v34 → v35. (Yes, skip v13, v16, and v19 unless a machine from 2010 forces your hand.) The "Multi-Version" Pain Points (And Fixes) 1. The Hard Drive Hog A full install of Studio 5000 v35 with all the add-ons (FT View, Linx, Security) takes roughly 15–20 GB . If you install 8 versions, that is nearly 150 GB.

Here is the hard truth about running on a single engineering workstation. The Golden Rule (Do Not Break This) Version order matters. Install from oldest to newest.