ICS Triplex T9432: Analog Input Module 16CH Isolated –

Technical Dossier

Product Details And Specifications

ICS Triplex Tricon Series: Comprehensive Module Range and Technical Overview

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

Sourcing Hard-to-Find & Obsolete Tricon Parts

The Tricon platform entered its mature/end-of-active-production phase following Schneider Electric's transition to the Tricon CX and subsequently the Triconex 3000 series. Many T9xxx-series modules are no longer manufactured under standard production runs. DriveKNMS maintains a dedicated inventory of tested, pull-out, and refurbished Tricon modules sourced from decommissioned SIS installations, plant upgrades, and authorized surplus channels. For operators committed to long-term maintenance of existing Tricon installations — where a full DCS migration is not economically viable — DriveKNMS provides lifecycle extension support including: verified-functional spare modules with documented test records, cross-reference mapping to compatible replacement modules where direct equivalents exist, and batch procurement for multi-year maintenance contracts. All obsolete modules are stored in ESD-safe, climate-controlled facilities and shipped with full traceability documentation.

Quality Control for the Tricon Range

Tricon I/O modules, including the T9432, incorporate a complex TMR backplane bus interface that requires functional validation beyond standard power-on testing. DriveKNMS applies a structured test protocol for all Tricon modules prior to dispatch: (1) Visual inspection of backplane connector pins, conformal coating integrity, and capacitor condition; (2) Powered bench test using a Tricon chassis with known-good MP and CM modules, verifying module recognition and self-diagnostic pass status via TriStation 1131 engineering software; (3) For analog input modules, channel-by-channel signal injection at 4 mA, 12 mA, and 20 mA with verification of reported engineering unit values within ±0.1% of full scale; (4) TMR voter integrity check confirming that single-channel faults are correctly flagged without spurious trip generation; (5) Final burn-in at operating temperature for a minimum of 4 hours. Test records are retained and available upon request for quality-critical installations.

© 2026 DriveKNMS. All trademarks belong to their respective owners. Specifications are for reference only and subject to change without notice. Verify all parameters against official documentation before installation.