Overview
Manuals
Principle
Primary Applications
Features:
- 16-channel digital input module
- 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 T9402 ICS triplex 16-channel digital 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 T9402 16-channel digital 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 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.
The T9402 is a core component of systems designed to protect industrial processes and personnel. Its most common applications include:
Emergency Shutdown Systems (ESD): Used to monitor critical field sensors (e.g., emergency stop buttons, limit switches) to trigger immediate safety shutdowns of machines or processes.
Fire and Gas Detection (F&G): Serves as an input interface to smoke, heat, and gas detectors, providing reliable data needed to activate fire suppression or alarm systems.
Burner Management System (BMS): Monitors flame scanners and fuel valve positions to ensure the safe startup and operation of industrial boilers and furnaces.
Critical Process Control: Applied to scenarios where signal failures could lead to significant business losses or environmental damage, such as high-pressure vessel monitoring.
