Honeywell FC-IOCHAS-0001R Redundant I/O Chassis

Product Overview

The Honeywell FC-IOCHAS-0001R is a redundant I/O chassis engineered for Honeywell Safety Manager systems requiring maximum availability. It supports up to 9 pairs of redundant I/O modules (18 slots total), with odd slots controlled by Control Processor 1 and even slots by Control Processor 2. This dual-processor architecture ensures uninterrupted safety monitoring even during single-point failures, making it essential for SIL 3-rated safety instrumented systems.

Key Features

• 9 Redundant I/O Pairs: Slots 1–18 configured in redundant pairs for fault-tolerant operation
• Dual Control Processor Support: Odd slots (CP1) / Even slots (CP2) with independent IO-0001 modules
• High Availability Design: Maintains safety function during module or processor failure
• Removable Front/Back Covers: Swing-up front cover and removable back plate for easy maintenance
• Integrated Cable Management: Rear clamps and tie-wraps for organized flat cable and power routing
• 19-Inch Standard Rack: Compatible with standard industrial cabinets

Technical Specifications

• Model: FC-IOCHAS-0001R (also FS-IOCHAS-0001R)
• Type: Redundant I/O Chassis
• Dimensions (W × D × H): 482.6 mm × 280 mm × 222.4 mm (first chassis: 5 HE; subsequent: 4 HE)
• Weight: ~8.5 kg (18.7 lbs)
• Slot Configuration: 21 slots (4TE each); Slots 1–18 for redundant I/O pairs; Slot 19 reserved; Slots 20–21 for IO-0001 modules
• Power Consumption: 35 mA per 5V rail (Slots 20 & 21)
• Approvals: CE, UL, CSA, TÜV, FM

Installation Guide

1. Mounting: Install below CP chassis; ensure proper grounding
2. Redundant Pairing: Install redundant I/O modules in adjacent odd/even slots (e.g., Slot 1 & 2, 3 & 4, etc.)
3. IO-0001 Installation: Install IO-0001 extender modules in Slots 20 (CP1) and 21 (CP2)
4. Flat Cable Connection: Connect I/O modules to horizontal IO bus (IOBUS-HBR) via flat cables
5. Backplane Verification: Confirm IOB-0001R backplane provides 18 IO-connectors in the chassis middle

FAQ

Q: How does redundancy work in this chassis?
A: Each redundant pair consists of two identical I/O modules. If one module fails, the partner module continues the safety function without interruption.

Q: Can I mix redundant and non-redundant modules?
A: The chassis is optimized for redundant pairs. Non-redundant modules can be installed but will not utilize the dual-processor redundancy.

Q: What is the difference between FC-IOCHAS-0001R and FC-IOCHAS-0002R?
A: FC-IOCHAS-0002R is a later variant with similar functionality. Verify system compatibility before ordering.

Selection Tips

• Mandatory for SIL 3 applications requiring redundant I/O architectures
• Pair with redundant Control Processors in FC-CPCHAS-0001 for full system redundancy
• Plan slot assignments carefully to balance load between CP1 and CP2