Overview
Manuals
Principle
Primary Applications
Features:
- Digital output 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 T9851 ICS triplex Digital output module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
ICS Triplex T9851 Digital output 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.
Field Device Drives: Used to distribute 24V DC control signals to power high-current field loads. Common devices include:
Solenoid Valves: Used for process flow control in oil and gas pipelines.
Relays and Contactors: Used for switching high-power electrical equipment.
Audio-Visual Alarms: Drive warning lights and alarms in safety systems.
Safety Instrumented Systems (SIS): Although the T9851 is a simplex (non-redundant) terminal block, in an AADvance configuration, it can be used for:
Emergency Stop (ESD): Executing stop commands.
Fire and Gas (F&G): Activating fire suppression systems.
Power Distribution: It acts as a power management center, utilizing two 10A fuses to protect field power circuits from overcurrent or short circuits in field lines.
