TRICONEX 3902AX Tricon CX Universal I/O Module in stock

TRICONEX 3902AX is a 16-channel universal I/O module for Schneider Triconex Tricon CX TMR safety instrumented system. It supports configurable AI, DI, AO, DO on each channel, integrated HART communication for smart field transmitters and valve positioners, used for safety interlock and emergency shutdown logic processing.

This module achieves SIL3 safety certification with triple modular redundant 2oo3 voting architecture. It supports hot swap and per-channel fault diagnostics, designed for harsh industrial sites with wide temperature range, widely used for safety cabinet maintenance, spare parts replacement and plant SIS safety instrument system retrofit projects.

Data Parameters

• 1. Brand: Triconex (Schneider Electric).

• 2. Model: 3902AX.

• 3. Product Type: Universal TMR I/O Module with HART.

• 4. Product Series: Tricon CX triple modular redundant safety system.

• 5. Channel Count: 16 configurable universal I/O channels.

• 6. Signal Types: Configurable AI, DI, AO, DO per channel, built-in HART 5/7.

• 7. Safety Level: IEC61508 SIL3 certified.

• 8. Architecture: 2oo3 triple modular redundant hardware voting logic.

• 9. Feature: Hot swappable without safety system shutdown.

• 10. Operating Temperature: -40℃ ~ +70℃.

Core Functions

• 1. Configure each channel independently as analog input, digital input, analog output or digital output.

• 2. Support HART communication to read diagnostic data and variables from smart field instruments.

• 3. Adopt triple redundant 2oo3 voting to eliminate single point failure risk in safety instrument loops.

• 4. Detect open circuit, short circuit and over-range faults on each channel and upload alarms to host system.

• 5. Exchange I/O data with Tricon CX safety controller for ESD, fire & gas and safety interlock control.

Application Scenarios

• 1. Petrochemical plant 3902AX universal I/O module replacement and safety cabinet maintenance.

• 2. Oil refinery and natural gas plant SIS emergency shutdown and fire & gas system retrofit project.

• 3. Chemical, pharmaceutical and thermal power plant safety interlock control spare parts renewal.

• 4. Offshore oil & gas platform high-reliability safety instrumented system spare parts inventory backup.

• 5. Legacy Tricon CX safety control system overhaul and aging universal I/O module replacement project.

FAQ

• 1. Q: What is TRICONEX 3902AX?
      A: It is SIL3 16-channel HART-enabled universal I/O module for Triconex Tricon CX TMR safety instrumented system.

• 2. Q: What is the difference between 3902AX and 3902X?
      A: 3902AX includes HART function, 3902X is the basic version without HART capability.

• 3. Q: Can TRICONEX 3902AX be hot swapped?
      A: Yes, it supports hot swap, module replacement will not interrupt SIS safety system operation.