TRICONEX DI3301 Digital Input Module

TRICONEX DI3301 is a digital input module developed for Trident triple modular redundant safety instrumented system. It collects discrete digital on-off signals from field emergency stop buttons, limit switches and pressure switches for safety interlock logic judgment.

This module adopts TMR triple voting fault-tolerant architecture, equipped with comprehensive channel diagnostic function for wire break and short circuit detection. It supports online hot swap without system shutdown, widely used as spare replacement for petrochemical, power and chemical safety control cabinet maintenance and retrofit projects.

Data Parameters

• 1. Brand: TRICONEX.

• 2. Model: DI3301.

• 3. Product Type: Digital Input Module.

• 4. System Architecture: Triple Modular Redundant (TMR).

• 5. Safety Level: IEC 61508 SIL3 certified.

• 6. Input Voltage: 24V DC, operating range 15~30V DC.

• 7. Channel Isolation: Galvanic isolation for each signal channel.

• 8. Diagnosis: Built-in wire break and short circuit detection.

• 9. Feature: Support online hot swap replacement.

• 10. Compatible System: Triconex Trident TMR SIS safety rack system.

Core Functions

• 1. Continuously collect discrete on/off safety digital signals from field safety devices.

• 2. TMR triple channel voting ensures high reliability of acquired signal data for safety logic calculation.

• 3. Real-time self-diagnosis to detect channel open circuit, short circuit and module hardware faults.

• 4. Support hot swap maintenance without interrupting the running safety instrumented system.

• 5. Transmit validated field signal status to Trident safety processor for interlock and trip judgment.

Application Scenarios

• 1. Oil & gas industry ESD emergency shutdown system spare parts replacement.

• 2. Chemical plant reactor safety interlock control cabinet maintenance and retrofit.

• 3. Power plant turbine and boiler safety protection system upgrade project.

• 4. Petrochemical refinery SIS safety instrumented system spare inventory.

• 5. Legacy Triconex Trident TMR safety automation system overhaul and module renewal.

FAQ

• 1. Q: What is TRICONEX DI3301?
      A: It is SIL3 digital input module for TRICONEX Trident TMR safety instrumented SIS system.

• 2. Q: What kind of signals can DI3301 collect?
      A: It receives 24V DC discrete digital signals from emergency stops, limit switches and safety relays.

• 3. Q: What safety certification does TRICONEX DI3301 have?
      A: It meets IEC 61508 standard and obtains SIL3 safety certification for safety-critical applications.