Honeywell Safety Manager FS Series Modules FS-CPCHAS-0002

Technical Dossier

Product Details And Specifications

Honeywell Safety Manager FS Series Technical Notes

The Honeywell Safety Manager (FS) Series is a dedicated Safety Instrumented System (SIS) platform engineered to IEC 61508 SIL 2/3 standards. It is deployed across the most demanding process industries globally — including petrochemical complexes, LNG terminals, nuclear auxiliary systems, offshore platforms, and refinery critical process units. The FS Series operates as a standalone safety layer or in integrated configurations alongside Honeywell's Experion PKS DCS, providing a certified, deterministic safety execution environment. Its chassis-based architecture supports hot-standby redundancy, fault-tolerant I/O, and high-availability communication backbones, making it the reference platform for functional safety compliance in brownfield and greenfield installations across Asia-Pacific, the Middle East, and Europe.

The Evolution of FS Series Architecture

The Honeywell Safety Manager platform was introduced in the early 2000s as a successor to the FSC (Fail Safe Controller) series, consolidating safety logic execution into a modular, rack-mounted chassis architecture. Early generations used the FS-CPCHAS-0002 chassis as the primary control processor housing, supporting dual-redundant CPU configurations with deterministic scan cycles. The architecture evolved through successive firmware generations to support expanded I/O density, Ethernet-based safety communication (FSC Link, FOUNDATION Fieldbus HSE), and integration with Experion Safety Manager software. Later revisions introduced the FS-TAI-0004 and FS-TAO-0004 I/O families with enhanced channel isolation and diagnostics. As of 2020, the FS Series has entered the mature/end-of-active-development phase; Honeywell continues to provide lifecycle support and spare parts, but new installations are directed toward the Safety Manager SC (SMSC) platform. For existing FS installations, long-term maintenance support — including certified refurbished modules and functional testing — remains critical for operational continuity through 2030 and beyond.

FS Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly deployed modules within the Honeywell Safety Manager FS Series. Each entry reflects a distinct hardware function within the safety system architecture.

Control Processor & Chassis

• FS-CPCHAS-0002: Control processor chassis, dual-slot, primary safety execution housing
• FS-CPM-0002: Control processor module, SIL 2/3 certified, redundant CPU card
• FS-CPM-0004: Enhanced control processor module, extended memory, faster scan cycle
• FS-CPCHAS-0004: 4-slot control processor chassis, expanded redundancy support

Digital Input (DI) Modules

• FS-TDI-0004: 24 VDC digital input module, 16-channel, SIL 2 rated
• FS-TDI-0016: 24 VDC digital input module, 32-channel, high-density field termination
• FS-TDI-0024: 120 VAC digital input module, 16-channel, isolated per channel

Digital Output (DO) Modules

• FS-TDO-0004: 24 VDC digital output module, 16-channel, solid-state relay output
• FS-TDO-0016: 24 VDC digital output module, 32-channel, high-density DO

Analog Input (AI) Modules

• FS-TAI-0004: 4–20 mA analog input module, 8-channel, HART-capable, SIL 2
• FS-TAI-0008: 4–20 mA analog input module, 16-channel, differential input configuration
• FS-TAI-0024: RTD/thermocouple analog input module, 8-channel, temperature measurement

Analog Output (AO) Modules

• FS-TAO-0004: 4–20 mA analog output module, 8-channel, loop-powered, SIL 2

Communication & Power

• FS-SCMB-0001: Safety communication module, FSC Link interface, peer-to-peer safety bus
• FS-PSU-0002: 24 VDC power supply unit, redundant-capable, chassis-mounted
• FS-PSU-0004: 24 VDC power supply unit, high-capacity, dual-feed input
• FS-IOLINK-0001: I/O link module, remote I/O expansion, fiber-optic backbone