ICS Triplex T8110B | Trusted TMR Processor 100MHz

Product Overview

The ICS Triplex T8110B Trusted TMR Processor serves as the central control engine for safety-critical applications. It delivers triple-modular redundancy (TMR) architecture, ensuring uninterrupted operation in gas turbines, compressor stations, and emergency shutdown systems. This processor executes control logic with deterministic precision, maintaining SIL 3 compliance for the most demanding industrial processes.

Core Architecture

The T8110B operates on a 100 MHz processor with 16 MB EDO DRAM (60 ns access) and 512 kB EPROM for firmware storage. Its 2 MB FLASH memory accommodates application code, while 128 kB NVRAM retains critical variables during power cycles. The triple-redundant inter-module bus enables high-availability communication across TMR-configured modules, with the T8100 chassis providing optimal mechanical and electrical integration.

Event buffering supports up to 1,000 Sequence of Events (SOE) records onboard, with a secondary Controller Interface buffer capable of storing 4,000 events for comprehensive diagnostic traceability.

Technical Specifications

Installation Guide

Mount the T8110B in the T8100 chassis using the provided guide rails. Ensure the chassis backplane is properly grounded before insertion. Apply firm, even pressure when seating the processor – audible clicks confirm full engagement. Maintain ambient temperature below 60 °C with at least 25 mm clearance on all sides for convection cooling. Connect redundant 24 Vdc power feeds to the chassis terminals, observing polarity. For TMR configurations, install three processors in adjacent slots and verify inter-module bus synchronization via the front-panel status LEDs.

Engineering Advantages

The T8110B delivers true TMR fault tolerance with 2-out-of-3 voting on all critical computations. Its 16 MB EDO DRAM with 60 ns access minimizes execution latency for time-critical safety loops. The 128 kB NVRAM retains process variables through power interruptions, eliminating manual re-initialization after brownouts. Variable storage efficiency – 1 byte for Booleans, 4 bytes for analogs, and 5 bytes for timers – maximizes available memory for complex control strategies. The processor's wide temperature tolerance (0 °C to 60 °C) ensures reliable operation in both climate-controlled control rooms and semi-conditioned enclosures.

Technical FAQs

Q1: Can the T8110B operate in a non-TMR (single) configuration?
A1: Yes. The processor functions in standalone mode without TMR voting. However, for SIL 3 applications, ICS Triplex mandates a full TMR configuration with three processors.

Q2: How do I retain variables through a power cycle?
A2: Variables stored in the 128 kB NVRAM persist automatically. No battery backup is required. The processor writes retained variables to NVRAM during normal operation and restores them upon reboot.

Q3: What is the recommended chassis for the T8110B?
A3: The T8100 chassis is specifically designed for this processor family. It provides the necessary backplane routing for inter-module bus communication and mechanical support for TMR configurations.