SKU: 8110

Triconex 8110 High-Density Main Chassis

The Triconex 8110 is the primary High-Density Main Chassis for Tricon TMR safety systems. It provides the essential backplane for triple-redundant processors and I/O modules, featuring 6 expansion ports and a 4-position security keyswitch for SIL3-rated industrial safety applications

Product Overview

The Triconex 8110 serves as the primary structural and communication foundation for the Tricon Triple Modular Redundant (TMR) safety system. As a High-Density Main Chassis, it houses the core processors and provides the initial slots for I/O and communication modules. This chassis is specifically engineered for “safety-critical” environments, such as emergency shutdown (ESD) systems and fire and gas (F&G) monitoring, where system failure is not an option.

Core Functionality and Redundant Architecture

The 8110 chassis executes the TMR architecture by providing separate paths for three identical sub-systems (Channels A, B, and C).

Support Triple Modular Redundancy: The backplane provides distinct electrical paths for three independent channels. This allows the system to vote on all critical data, ensuring that a single hardware failure does not trip the process or compromise safety.
Manage System Security: An integrated four-position keyswitch controls the operating mode (RUN, PROGRAM, STOP, and REMOTE), preventing unauthorized logic changes while the system protects the plant.
Facilitate Massive Expansion: The chassis features six RS-485 I/O expansion bus ports. This allows engineers to link the 8110 to additional 8111 expansion chassis or 8112 Remote Extender Modules (RXM) to scale the system for large-scale facility protection.

Communication and System Connectivity

The 8110 acts as the central hub for all data flowing through the safety instrumented system (SIS).

Distribute Power and Data: The chassis backplane distributes power from redundant power supply modules to every card in the rack while maintaining high-speed communication between the Main Processors and I/O modules.
Maintain Fault Tolerance: By using dual channel A/B/C port sets, the chassis ensures that communication between racks remains active even if one cable or port fails.
Ensure Industrial Hardening: Triconex built the 8110 to withstand the rigors of industrial environments, meeting strict certifications for shock, vibration, and electromagnetic interference (EMI).

Primary Industrial Applications

The Triconex 8110 is the preferred choice for high-stakes industries requiring SIL3 (Safety Integrity Level 3) performance:

Oil and Gas Refineries: Manages emergency shutdown logic for high-pressure units.
Chemical Processing: Monitors critical temperature and pressure loops to prevent runaway reactions.
Power Generation: Protects turbine systems and boiler controls from catastrophic failure.
Nuclear Facilities: Provides highly reliable control for safety-related auxiliary systems.