



The Honeywell 900C75‑0460 HC900 C75 Redundant Controller CPU is a high‑reliability central processing module designed for the Honeywell ControlEdge™ HC900 modular automation platform. This CPU unit is engineered for redundant control architectures, enabling seamless failover between primary and standby CPUs so that critical process logic continues to run without interruption in the event of a hardware fault or maintenance transition.
Intended for large‑scale industrial control and safety systems, this module executes complex control strategies with deterministic performance, supports extensive I/O networks, and satisfies stringent functional safety requirements, making it ideal for continuous operation in demanding environments.
Technical Specifications
| Specification | Details |
|---|---|
| Model | 900C75‑0460 |
| Module Type | Redundant Controller CPU |
| System Compatibility | Honeywell ControlEdge HC900 |
| Processor Type | 32‑bit RISC PowerPC e300 |
| Memory | 128 MB ECC DDR2 RAM with battery backup |
| Function Blocks Capacity | Up to ~15,000 blocks |
| Redundancy Support | Dual‑CPU failover configurations |
| I/O System Support | Up to ~2304 analog input points (system) |
| Communication Interfaces | Dual Ethernet ports (typical) |
| Power Supply | Standard 5 V DC (system supply dependent) |
| Operating Temperature Range | Industrial range (typical: ~0 °C to +60 °C) |
| Storage Temperature Range | ~‑40 °C to +85 °C |
| Dimensions (Approx.) | ~132 × 25 × 170 mm |
| Weight | ~0.4–0.5 kg (module board) |
| Safety Certification | SIL 2 eligible (for safety instrumented systems) |
| Mounting | HC900 controller rack slot |
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