The Honeywell 900RSM‑0001 is a redundant CPU switch module for HC900 controllers, enabling automatic switchover between primary and backup CPUs to maintain continuous operation in mission‑critical industrial processes.
Specifications
Manufacturer: Honeywell
Model: 900RSM‑0001
Module Type: Redundant CPU Switch Module
System Compatibility: HC900 Hybrid Controller
Redundancy Mode: Automatic CPU failover
Switching Logic: Monitors CPU health and communication integrity
Communication: Integrated backplane interface
Isolation: CPU‑to‑system galvanic isolation
Power Requirements: Rack‑supplied regulated DC
Operating Temperature: 0°C to +60°C
Installation: HC900 rack‑mounted module
Features
Automatic CPU Switchover: Ensures uninterrupted control during CPU failure
Continuous System Monitoring: Tracks CPU status, communication, and diagnostics
High Availability Design: Supports 24/7 operation in critical environments
Stable Backplane Integration: Maintains reliable communication between CPUs and I/O
Industrial Durability: Built for harsh plant conditions
Maintenance‑Friendly: Allows quick replacement without disturbing system wiring
