The Triconex 3008 is the heart of the Tricon Triple Modular Redundant (TMR) system. As a Main Processor (MP) module, it is designed to provide the highest level of safety and fault tolerance for industrial processes. In a standard Tricon chassis, three 3008 modules work in parallel. Each MP independently executes the safety logic, and the results are voted upon to ensure that a single hardware failure cannot cause a system trip or a failure to trip. This “two-out-of-three” (2oo3) voting architecture is what makes the Triconex system the global standard for safety-instrumented systems (SIS).
Product Specifications (Datasheet)
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Model: 3008
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Module Type: Main Processor (MP)
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Processor Architecture: 32-bit microprocessor-based TMR
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Dimensions: 430 mm x 300 mm x 31 mm (H x D x W)
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Weight: 1.70 kg
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Country of Origin: USA
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Memory: 16 MB Dynamic RAM (Non-volatile Flash for program storage)
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Clock Speed: High-performance execution for sub-100ms scan times
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Redundancy: Triple Modular Redundant (Uses three modules per system)
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Communication Interface: Dedicated Tribus for inter-processor synchronization
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System Compatibility: Tricon v9.6 through v10.x systems
Key Application Fields
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Emergency Shutdown (ESD): The primary controller for safeguarding oil, gas, and chemical refineries.
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Fire and Gas (F&G) Systems: Managing complex logic for flame detection and automated suppression.
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Burner Management Systems (BMS): Ensuring safe startup, operation, and shutdown of industrial boilers and furnaces.
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Nuclear Safety: Used in reactor protection systems and safety-related control loops.
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Turbine Control: Providing high-speed, fail-safe control for large steam and gas turbines.
Product Usage Instructions
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Installation: Three 3008 modules must be installed into the designated “MP” slots in the Tricon Main Chassis. Ensure the ejector levers are fully locked to engage the backplane.
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Synchronization: Upon power-up, the three processors will communicate via the Tribus backplane. They will automatically synchronize their internal clocks and memory states.
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Programming: Use TriStation 1131 software to develop and download your safety logic. The program is downloaded once and automatically distributed to all three processors.
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Key Switch Management: Use the physical key switch on the chassis (controlled by the MPs) to move the system between “RUN,” “PROGRAM,” and “REMOTE” modes to prevent unauthorized logic changes.
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Monitoring: Monitor the “Active” and “Fault” LEDs on each module. In healthy operation, all three modules should show “Active.” If one shows “Fault,” it can be hot-swapped while the process continues to run.
Q&A: Frequently Asked Questions
Q: Can a Tricon system run with only two 3008 modules? A: Yes. If one 3008 fails, the system automatically transitions from 2oo3 voting to 2oo2 voting (dual mode). It will continue to operate safely, but the failed module should be replaced to restore full TMR fault tolerance.
Q: What is the significance of the “Tribus”? A: The Tribus is a dedicated, high-speed hardware bus that allows the three 3008 processors to compare every bit of data and every logic result during every scan cycle.
Q: Is the 3008 compatible with newer v11.x Tricon CX systems? A: No. The 3008 is designed for the flagship “Big Tricon” (v9-v10) chassis. The newer Tricon CX uses a different processor architecture (the 3009 module).
Q: How is the program stored if power is lost? A: The application program is stored in non-volatile Flash memory. Additionally, a battery on the backplane or within the module ensures that dynamic data in the RAM is retained during power interruptions.
Find the 3008 and other critical Triconex TMR components to ensure the heart of your safety system remains healthy and reliable.
Similar Model Recommendations
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Triconex 3009: The next-generation processor designed for the Tricon CX high-density system.
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Triconex 3006: An older generation processor used in legacy Tricon v9.0-v9.5 systems.
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Triconex 4351B: The communication module that interfaces the 3008 processors with external DCS and HMI systems.
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Triconex 8310: The high-density power supply module that provides the triple-redundant power required by the 3008.
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Triconex 3503E: A digital input module that feeds the field signals to the 3008 for logic processing.
