INNIS11 Network Interface Module (also part no YINNIS11, PINNIS11).
The Bailey Controls (now ABB) INNIS11 (part number 6644063B1) is a Network Interface Slave (NIS) module designed for the Symphony Infi-90 and Harmony distributed control systems (DCS). It functions as a communication bridge to connect process control unit modules to the plant-wide INFI-NET communication system.
Key Features
- INFI-NET Connectivity: Allows localized nodes to exchange data with any other node on the INFI-NET serial data loop.
- Module Architecture: It works in tandem with the Network Processing Module (NPM), handling message types like broadcast, multicast, time synchronization, and NIS polls.
- System Diagnostics: Features 16 front-plate LEDs that display error codes and event/error counts for straightforward troubleshooting.
- Fail-Safe Startup: Provides localized start-up and shutdown operations during power failures without requiring operator intervention.