Triconex 8110N2 | Nuclear Qualified High-Density Main Chassis | Schneider Electric | TMR Safety System

Overview:

The Triconex 8110N2 is a high-density main chassis specifically engineered for the Tricon V10 Triple Modular Redundant (TMR) safety system by Schneider Electric. It serves as the core platform for housing the main processors, power supply units, and I/O modules of the Tricon system, providing the physical and electrical infrastructure necessary for high-integrity control and safety in mission-critical applications.

With its Nuclear-qualified design, the 8110N2 meets the most rigorous seismic and environmental standards, making it suitable for nuclear power plant applications (1E). Its TMR architecture ensures fault tolerance and system integrity, crucial for environments where safety cannot be compromised.

Key Features:

1. Triple Modular Redundancy (TMR):
   The 8110N2 chassis supports a 3-2-0 fault-tolerant architecture. The backplane is triplicated, allowing for three independent channels that communicate and "vote" on data. This ensures that a failure of any single channel or module will not cause a system shutdown, maintaining safety and reliability.

2. High-Density Design:
   Optimized for space efficiency, the chassis is designed to hold 2 power modules, 3 main processors, and 6 I/O or communication modules within a 19-inch rack mount footprint. This compact design ensures that the system can handle a high number of modules without compromising performance, heat dissipation, or signal integrity.

3. Hot-Swappable Modules:
   The chassis allows for the hot-swapping of modules, including main processors and power supplies, while the system is online. This feature ensures minimal downtime and uninterrupted operation in critical safety systems.

4. Seismic & Environmental Ruggedness:
   As a Nuclear-qualified module, the 8110N2 is constructed with enhanced materials to resist high vibration, electromagnetic interference (EMI), and other environmental challenges, making it ideal for use in nuclear plants, oil & gas refineries, and other industrial sectors that require high durability and safety.

5. Mechanical Keying for Safety:
   Each slot in the 8110N2 is mechanically keyed, preventing incorrect module insertion. This built-in safety feature ensures that modules are inserted into their designated slots, reducing the risk of hardware damage or system malfunctions.

Technical Specifications:

Core Components Supported:

The 8110N2 chassis supports the following essential modules within the Tricon V10 system:

• Main Processors (MP): Three dedicated slots for TMR processing (e.g., Model 3008).

• Power Modules: Two slots for AC or DC power supplies (e.g., 8310, 8311, or 8312).

• I/O Slots: Six slots for various digital, analog, or pulse I/O modules.

• Communication Modules: Slots for Tricon Communication Modules (TCM) to interface with DCS or Modbus networks.

Applications:

• Nuclear Power: Designed to meet 1E nuclear standards, ensuring reliable operation in safety-critical control systems within nuclear power plants.

• Oil & Gas: Essential in maintaining safety and reliability in oil & gas refineries where high availability and fault tolerance are crucial.

• Industrial Automation: Widely used in industries that require high-integrity safety systems, including refining, chemical processing, and critical infrastructure.

FAQ:

Q1: What is the key difference between the 8110N2 and other Tricon chassis?
The 8110N2 is Nuclear-qualified, designed to meet stringent seismic and environmental standards. It is optimized for use in nuclear power applications, whereas other models may be suitable for general industrial applications.

Q2: Can modules be replaced while the system is running?
Yes, the 8110N2 chassis features hot-swappable modules, allowing for maintenance without causing a system shutdown, ensuring continuous operation.

Q3: What certifications does the 8110N2 chassis have?
The 8110N2 is certified to SIL 3 (IEC 61508 / IEC 61511) and meets TÜV, CSA, FM, and NRC nuclear standards.