Official documentation and software updates for this version are available on the Schneider Electric Download Portal .
I just realised why Unity 6.x has version numbers like 6000.x Unity Pro 13.1 Download
For professionals in industrial automation and PLC (Programmable Logic Controller) programming, "Unity Pro" refers to the legacy software suite from Schneider Electric used for controllers. Official documentation and software updates for this version
1. Schneider Electric Unity Pro 13.1 (Industrial Automation) Unity Pro 13.1 Download