Here’s what more than 2,500 business decision-makers around the world say.Download the report
...with the Facility Hero app in hand! Discover how you can optimize your maintenance efforts today.Learn more
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
Everything you need to know about our IoT technology backbone.Learn more
Welcome to the Schneider Electric Global Website×
No. There is no keyswitch update procedure to transfer the program from the primary unit to the backup unit in 984 Hot Standby (HSBY) systems. This functionality was introduced only in the Quantum Hot Standby systems. With 984 HSBY systems, each unit must be loaded individually by the programming software application.