ICS Triplex T8160 Trusted TMR Interface Modules
Description
The Trusted TMR Processor is a fault tolerant design based on a Triple Modular Redundant (TMR) architecture operating in a lock-step configuration. Figure 1 shows, in simplified terms, the basic structure of the Trusted TMR Processor module. The module contains three Processor fault containment regions (FCR), each containing a Motorola Power PC series Processor and its associated memory (EPROM, DRAM, Flash ROM, and NVRAM), memory mapped I/O, voter and glue logic circuits. Each Processor FCR has voted two-out-of-three (2oo3) read access to the other two Processor’s FCR memory systems to eliminate divergent operation. The module’s three Processors store and execute the application program, scan and update the I/O modules and detect system faults. Each Processor executes the application program independently, but in lock-step synchronisation with the other two. Should one of the Processors diverge, additional mechanisms allow the failed Processor to re-synchronise with the other two. Each Processor has an interface which consists of an input voter, discrepancy detector logic, memory, and an output driver bus interface to the Inter-Module Bus. The output of each Processor is connected by the module connector to a different channel of the triplicated Inter-Module Bus.
Advantage Products
①Allen-Bradley(USA AB)Series
②Schneider(Schneider Electric)Series
③General electric(General Electric)Series
④Westinghouse Series
⑤SIEMENS Series
⑥ABB Robots. FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、Panasonic Robots、MOTOMAN Robots.
⑦Westinghouse: OVATION System、WDPF System、MAX1000 system spare parts.
Conversion、I/O Signal processing、Data communication systems?Digital-to-Analogue
⑧Invensys Foxboro I/A Series system，FBM（I/O）SCS、Trapezoidal logic control、Accident recalling、DAC
Invensys Triconex: Redundant fault-tolerant control system、Most modern fault-tolerant controller based on Triple Modular Redundancy (TMR) architecture.
⑨Siemens：Siemens MOORE，?Siemens Simatic C1，Siemens CNC system.
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