TRICONEX | 4329 | 4351B | 32-Channel Digital Input Module

Product Overview

The TRICONEX 4329 is a high-integrity digital input module designed for safety-critical control systems within the Triconex Tricon V11 platform. As part of Schneider Electric’s renowned safety solutions, this 32-channel module provides SIL3 (Safety Integrity Level 3) certified performance for process industries requiring fail-safe operation. The TRICONEX 4329 features Triple Modular Redundant (TMR) architecture, ensuring continuous operation even with two simultaneous faults. Its galvanically isolated inputs support both dry contact and 24 VDC wet signals, making it adaptable to diverse field device requirements. The module integrates seamlessly with Tricon Main Processors like MP3008 through high-speed bus communication, delivering <15ms response time for emergency shutdown (ESD) and fire & gas systems. With built-in HART protocol support, the TRICONEX 4329 enables advanced device diagnostics while maintaining intrinsic safety in hazardous areas.

Technical Specifications

Key Features & Benefits

The TRICONEX 4329 delivers unmatched reliability through its TMR design with three independent input circuits per channel, voting at both hardware and software levels. Key advantages include:

TRICONEX-4329

Advanced Diagnostics: Continuous monitoring of field wiring integrity and module health
Hot Swap Capability: Module replacement without system shutdown
Flexible Configuration: Supports 2/3-wire connections and HART-enabled devices

Its patented Fault Tolerance and Diagnostics Coverage (FT/DC) technology ensures >99.99% system availability. The module’s front-accessible terminal blocks simplify maintenance, while LED status indicators provide instant visual feedback for each channel. Compatibility with TriStation 1131 software enables seamless integration into existing Tricon safety instrumented systems (SIS).

Application Areas

The 4329 module is essential in oil & gas facilities for emergency shutdown (ESD) systems, pipeline valve control, and compressor protection. It serves critical roles in chemical plants for reactor temperature monitoring and pressure relief activation. Power generation applications include turbine overspeed protection and nuclear plant safety systems. The module’s hazardous area certification makes it ideal for offshore platforms and LNG terminals requiring Zone 2 compliance.

Related Products

• TRICONEX 4351B – Analog input module with HART multiplexing
• TRICONEX 3624 – Communication module for network redundancy
• TRICONEX 3805E – Enhanced main processor unit
• TRICONEX 8312 – Digital output module with surge protection
• TRICONEX 9771-810 – Redundant power supply unit