Overview

The Triconex 4352AN is a Nuclear-qualified Tricon Communication Module (TCM) designed for use in the Tricon V10 Triple Modular Redundant (TMR) safety system. Built to meet the rigorous standards required for safety-critical applications in nuclear power plants, this module ensures continuous and reliable communication between the Tricon controller and external systems, including Distributed Control Systems (DCS), Human-Machine Interfaces (HMI), and other PLC networks.

With its redundant network ports and serial communication interface, the 4352AN ensures fault tolerance and prevents isolation of the safety system, even in the event of a cable or switch failure.

Key Features & Functions

1. Triplicated Communication Interface

• The 4352AN module provides high-performance Ethernet and serial interfaces, directly connecting to the Tricon V10 system’s three main processors (3008N). The data from all three processors is synchronized and transmitted over the triplicated I/O bus to external systems, ensuring fault tolerance and system integrity.

2. Redundant Network Paths

• Featuring two independent Ethernet ports (NET 1 and NET 2), the 4352AN supports IP redundancy. These ports can be configured on the same or different subnets to maintain continuous communication even if one network branch fails, ensuring seamless operation.

3. Peer-to-Peer (P2P) Communication

• The 4352AN enables Peer-to-Peer (P2P) communication, allowing multiple Tricon controllers to share safety-critical data across dedicated networks. This is especially useful in large-scale plants with different safety zones that need to coordinate shutdown actions or share critical information.

4. Nuclear Qualification (N-Series)

• As part of the "N" series, the 4352AN is designed to withstand extreme conditions, including high levels of electromagnetic interference (EMI/RFI) and seismic vibrations (Seismic Category I). The module is manufactured under a strict 10 CFR 50 Appendix B quality program, making it suitable for safety-related applications in nuclear facilities.

5. Diagnostic Indicators

• PASS: Indicates the module has passed all internal self-tests.

• FAULT: Illuminates when a hardware fault is detected.

• ACTIVE: Shows the module is actively processing communication traffic.

• LINK (NET 1 / NET 2): Indicates a valid physical connection to the Ethernet network.

• RX/TX: Displays network communication activity.

• The 4352AN features a set of LED indicators that provide real-time feedback on module status:

Technical Specifications

Applications

The Triconex 4352AN is specifically designed for nuclear power plants and other safety-critical systems that require continuous and reliable communication. Its redundant network capabilities and peer-to-peer functionality make it ideal for large-scale industrial operations where multiple safety zones need to coordinate critical shutdown actions or share real-time data.

Installation & Maintenance

• The 4352AN module is compatible with the Tricon V10 system and can be installed in standard chassis slots.

• It is equipped with real-time diagnostic LEDs, making it easy to monitor the system status and troubleshoot any issues quickly.

FAQ

Q1: What does the 4352AN provide that regular communication modules do not?
A1: Unlike standard communication modules, the 4352AN supports redundant communication paths with two Ethernet ports and a serial port. It ensures system integrity by allowing communication to continue even if a cable or switch fails.

Q2: Is the 4352AN suitable for use in nuclear facilities?
A2: Yes, the 4352AN is Nuclear-qualified and built to withstand high levels of EMI/RFI and seismic vibrations, ensuring reliable communication in safety-related applications.

Q3: What protocols are supported by the 4352AN?
A3: The 4352AN supports a wide range of protocols, including Modbus TCP/RTU, TCP/IP, TSAA, and Peer-to-Peer, making it highly adaptable for various industrial applications.