ICS Triplex T9432 Analog Input Module 16CH Isolated

Technical Dossier

Product Details And Specifications

ICS Triplex Tricon Series Technical Notes

The ICS Triplex Tricon platform is a Triple Modular Redundancy (TMR) Safety Instrumented System (SIS) deployed across the most demanding process industries globally — including offshore oil & gas platforms, onshore LNG terminals, nuclear power generation facilities, petrochemical complexes, and continuous chemical manufacturing plants. The Tricon architecture achieves IEC 61511 SIL 3 certification by executing three independent processing legs in parallel, with a fault-tolerant voter that masks single-point failures without process interruption. The T9432 is a 16-channel isolated analog input module designed for field signal acquisition within this TMR framework, providing galvanic isolation per channel to eliminate ground loop interference in high-noise industrial environments.

The Evolution of Tricon Architecture

ICS Triplex introduced the Tricon platform in the late 1980s as a hardware-redundant alternative to software-based fault tolerance. The original Tricon v1 chassis used a passive backplane with proprietary TMR bus arbitration. Through the 1990s, the architecture evolved to support HART pass-through on analog I/O modules, enabling field device diagnostics without loop interruption — a critical advancement for SIL-rated loops. The v9 and v10 hardware generations introduced enhanced EMC shielding and extended the operating temperature range to -40°C to +70°C for harsh-environment enclosures. Triconex (acquired by Schneider Electric in 2004, formerly marketed under ICS Triplex branding) subsequently released the Tricon CX platform, which added Ethernet-based engineering workstation connectivity while maintaining backward compatibility with legacy I/O modules including the T9432 series. Compatibility between chassis generations requires verification of backplane revision and firmware version; mixing v9 I/O modules in v10 chassis is supported with specific firmware constraints documented in Triconex Engineering Bulletin EB-2003-001.

Tricon Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly deployed modules within the ICS Triplex Tricon TMR platform. Each entry reflects a distinct functional role within the system architecture.

Analog Input Modules

• T9432: 16-channel isolated analog input, 4–20 mA / 1–5 V, SIL 3 rated, per-channel galvanic isolation
• T9431: 8-channel isolated analog input module, high-density field termination, HART-compatible
• T9433: 16-channel analog input, non-isolated, for low-noise panel environments
• T9480: 8-channel analog input, thermocouple/RTD, temperature measurement module

Analog Output Modules

• T9442: 8-channel isolated analog output, 4–20 mA, loop-powered field devices
• T9441: 4-channel analog output module, high-current drive capability for valve positioners

Digital Input Modules

• T9302: 32-channel digital input, 24 VDC, field-powered, TMR voted
• T9301: 16-channel digital input, 120 VAC, optically isolated, high-voltage field interface
• T9310: 32-channel digital input, 48 VDC, for telecom and utility substation applications
• T9311: 16-channel digital input, 24 VDC, with diagnostics per channel

Digital Output Modules

• T9402: 16-channel digital output, 24 VDC, solid-state relay, 0.5 A per channel
• T9401: 8-channel digital output, 120 VAC, triac-based, for solenoid valve actuation
• T9403: 32-channel digital output, 24 VDC, high-density, DIN rail termination panel

CPU & Communication Modules

• T9110: Tricon Main Processor Module (MP), dual-redundant CPU with TMR voting logic
• T9100: Tricon Communication Module (CM), Modbus RTU / TCP gateway, legacy serial interface
• T9200: Tricon Network Communication Module (NCM), Ethernet TCP/IP, TriStation 1131 connectivity
• T9800: Tricon Power Supply Module, 24 VDC input, redundant hot-swap capable
• T9801: Tricon Power Supply Module, 120/240 VAC input, universal voltage range