The Honeywell 900RSM‑0200 Redundant Switch Module provides automatic CPU switchover and continuous controller availability within HC900 hybrid control systems.
Specifications
Manufacturer: Honeywell
Model Number: 900RSM‑0200
Module Type: Redundant CPU Switch Module
System Compatibility: Honeywell HC900 Hybrid Controller
Redundancy Mode: Automatic active/standby CPU switchover
Monitoring Logic: Continuous CPU health and communication diagnostics
Communication Interface: Integrated HC900 backplane switching interface
Isolation: Galvanic isolation between CPU and system bus
Power Supply: Rack‑provided regulated DC
Operating Temperature: 0°C to +60°C
Installation: HC900 rack‑mounted module
Application: High‑availability process control and fault‑tolerant automation
Features
Automatic CPU Failover: Maintains uninterrupted control during CPU faults
Continuous Diagnostics: Monitors CPU status, communication integrity, and redundancy health
High Availability: Designed for 24/7 mission‑critical industrial processes
Stable Backplane Integration: Ensures reliable communication between CPUs and I/O
Industrial Durability: Robust construction for harsh plant environments
Maintenance‑Friendly: Supports quick module replacement without wiring disturbance
FAQ
What does the 900RSM‑0200 do: It manages automatic switchover between redundant CPUs in HC900 systems.
Is it compatible with all HC900 racks: Yes, it is designed for HC900 redundancy architecture.
Does it support hot‑swap: Module replacement is possible without disturbing wiring; system impact depends on redundancy configuration.
How does redundancy switchover occur: Switchover timing is controlled by CPU redundancy firmware; the module provides the switching path.
What diagnostics are available: CPU health, communication integrity, and redundancy status monitoring.
