The Internet of Things (IIoT) offers unprecedented possibilities for industries. Stay ahead with EcoStruxure™ Plant and Machine.Learn more
...with the EcoStruxure™ Facility Expert (formerly known as 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
The story behind the Shedd Aquarium, a smart, sustainable facility that connects people to animals, with EcoStruxure™.Discover how
Welcome to the Schneider Electric Global Website×
Goals and Symptoms
The purpose of this resolution is to identify which Hot Standby (HSBY) modules are used with the 984 Chassis Mount PLCs and which are used with 984 Slot Mount PLCs.
Facts and Changes
AM-S911-000 and AM-R911-000 HSBY option modules are for use with the 984 Chassis Mount PLCs only. They will not fit into a 984 Slot Mount backplane.
The AS-S911-800 is for use with the 984 Slot Mount PLCs only. It will not fit into a 984 Chassis Mount housing.
Causes and Fixes
The AM-S911-000 was the first HSBY module for 984 Chassis Mount configurations. This module was redesigned to improve system reliability and the new version designated AM-R911-000. The AM-S911-000 and AM-R911-000 are not compatible and can not be interconnected. A 984 Chassis Mount HSBY system must contain either AM-S911-000 modules or AM-R911-000 modules.
There is only one version HSBY module for the 984 Slot Mount PLCs, ie: AS-S911-800.
Sign up for all the latest solutions, offers and best practices straight to your inbox.
We are excited that you have joined the group. You will receive your welcome email soon describing the program and what to expect in the upcoming weeks. Enjoy!