Overview
Manuals
Principle
Industrial Applications
Features:
- Trusted TMR System 24Vdc Analog Input Module
- Triple Modular Redundant (TMR), fault tolerant (3-2-0) operation
- It is designed for high-reliability, safety-critical industrial applications requiring SIL 3 certification
The Trusted TMR processor is a fault-tolerant design based on a Triple Module Redundancy (TMR) architecture, operating in a synchronous configuration. Figure 1 illustrates the basic structure of the Trusted TMR processor module in a simplified manner.
The module comprises three Processor Fault Isolation Regions (FCRs). Each FCR contains an NXP PowerQUICC® II™ series processor and its associated memory (EPROM, DRAM, Flash ROM, and Flash RAM), memory-mapped I/O, a voter, and glue logic. Each processor FCR employs a 2/3 (2oo3) read permission voting mechanism to vote on the memory systems of the other two processor FCRs to eliminate operational discrepancies.
The T8431C ICS triplex Analog Input Module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
ICS Triplex T8431C Analog Input Module maunal(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The module's three processors are responsible for storing and executing the application, scanning and updating the I/O module, and detecting system faults, respectively. Each processor executes the application independently but runs synchronously with the other two processors. Each processor has an interface that includes an input voter and difference detection logic.
This module is a standard component in high-risk industries where monitoring critical process variables is crucial for accident prevention:
Oil & Gas: Used for emergency shutdown (ESD) systems and fire and gas (F&G) detection on offshore platforms, refineries, and pipelines.
Power Generation: Monitors critical sensors in nuclear and thermal power plants to ensure parameters such as pressure and temperature remain within safe limits.
Chemicals: Used for managing hazardous process controls and reactor monitoring, where sensor accuracy is critical for stability.
Heavy Manufacturing: Used in steel mills and paper mills for high-reliability machine protection.
