2025-06-13 BY
IN Company News

TRICONEX DI3301 Product Overview

Product Description

The TRICONEX DI3301 is a high-reliability digital input module designed for safety-critical industrial automation systems. It is part of the Triconex Tricon series, known for its triple modular redundancy (TMR) and fail-safe capabilities. This module is designed to capture discrete signals from field devices with precision, making it a vital component in safety instrumented systems (SIS), emergency shutdown (ESD) systems, and complex process control architectures.

Technical Specifications

  • Module Type: Digital Input Module (Triple Modular Redundant, Fail-Safe Enabled)
  • Input Voltage: 24 VDC (nominal, ±25% range: 15–30 VDC)
  • Number of Channels: 32 isolated channels (16 channels per submodule)
  • Input Current Capacity: <1 mA per channel
  • Isolation: Galvanic isolation between input and logic circuits
  • Communication Protocol: Tricon proprietary backplane (10 Mbps, dual-redundant), optional RS-485 interface
  • Operating Temperature: -40°C to +70°C (-40°F to +158°F)
  • Storage Temperature: -55°C to +85°C (-67°F to +185°F)
  • Vibration Resistance: 0.05 g RMS (20–500 Hz)
  • Shock Resistance: 15 g peak (11 ms half-sine wave)
  • Physical Dimensions: 175 mm (H) × 100 mm (W) × 220 mm (D) (6.89 in × 3.94 in × 8.66 in)
  • Installation Method: Rack-mounted (compatible with Tricon 3000/4000 series chassis, hot-swappable)
  • Safety Integrity Level: SIL 3 capable (when configured in a TMR system per IEC 61508)

Features

  • Triple Modular Redundancy (TMR): Ensures high availability and reliability by using three independent signal paths with built-in voting logic.
  • Built-in Diagnostics: Continuously monitors module health, including channel-specific fault detection for open circuits, short circuits, and overvoltage events.
  • Hot-Swappable Design: Allows maintenance or replacement without powering down the system, minimizing downtime in live industrial environments.
  • Wide Operating Voltage Range: Suitable for harsh industrial environments.
  • Robust Construction: Built to withstand extreme temperatures, vibrations, and other environmental challenges.
  • Configurable Fail-Safe States: Allows users to define the default input behavior in the event of a communication loss or internal fault.

Applications

The TRICONEX DI3301 is widely used in:
  • Oil & Gas: Monitoring wellheads, refineries, and pipelines.
  • Chemical Processing: Managing chemical reactions and safety interlocks.
  • Power Generation: Ensuring stable operation in power plants.
  • Emergency Shutdown (ESD) Systems: Rapid response to hazards.
  • Fire & Gas Detection: Critical alarm systems.
  • Mechanical Protection: Vibration and overspeed protection for large rotating equipment.TRICONEX DI3301S2 Input Module: Advanced Process Control Solution Triconex PLC - DI3301 Digital Input Module, Industrial Control Innovation