Overview
Manuals
Principle
Primary Applications
Features:
- Power Shelf 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 T8240 ICS triplex Power Shelf may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
ICS Triplex T8240 Power Shelf 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.
TMR System Power Supply: The T8240 is the foundational module for powering trusted safety controllers. It converts mainline voltage (110 Vac or 240 Vac) to a stable 24 Vdc (system power) or 28 Vdc (field power).
High Availability Redundancy: In applications where downtime is intolerable, the T8240 supports redundancy.
By housing three 750W power banks, it can provide 1500W of redundant power from a single 1U rack, ensuring system continuity even if one power bank fails.
Distributed Power Architecture: Multiple T8240 racks can be stacked and interconnected via flat cables, enabling current sharing in large control systems and providing up to 9000W of total power.
Intelligent Monitoring: The T8240 reports out-of-range faults, over-temperature, and fan failures to the main controller via relay contacts on its rear power port.
