Overview
Manuals
Principle
Primary Applications
Features:
- Termination Assemblies for Analogue Inputs
- Triple Modular Redundant (TMR), fault tolerant (3-2-0) operation
- Hardware Implemented Fault Tolerant (HIFT) architecture
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 T9831 ICS triplex Termination Assemblies for Analogue Inputs may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
ICS Triplex T9831 Termination Assemblies for Analogue Inputs 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 three processors in this module are responsible for storing and executing applications, scanning and updating I/O modules, and detecting system faults. Each processor executes applications independently but operates synchronously with the other two processors. Each processor has an interface that includes an input voter, discrepancy detection logic.
Simplified Control Loop: The T9831 is designed for simplex (non-redundant) configurations. It is suitable for applications where high integrity safety (e.g., TMR) is not required, but reliable industrial measurements are still necessary.
Field Sensor Interface: It provides terminal connections for up to 16 non-isolated analog input channels. Commonly used sensors include:
Pressure and Flow Transmitters: Monitor process variables in pipelines.
Temperature Sensors: Track temperatures in industrial boilers or reactors.
Level Sensors: Measure liquid levels in tanks.
Safety and Critical Controls: Although operating in simplex mode, it is part of the AADvance system and supports SIL 2 and SIL 3 applications. It is typically used in non-critical loops in Emergency Shutdown (ESD), Fire and Gas (F&G), and Burner Management Systems (BMS), or in systems whose architecture allows for simplex inputs.
