General Information

Core Description

The 3008 is a high-availability main processor module featuring a 50 MHz 32-bit processor core and 16 MB DRAM, working seamlessly with Tricon v9.6 and later systems to deliver fully transparent Triple-Modular Redundant control and millisecond-level fault isolation for mission-critical industrial assets.

Specific Application

• Emergency Safety Shutdown Systems: Serving as the redundant computing backbone for managing plant trip parameters across safety-critical refinery and chemical reactor environments.
• Boiler Burner Management Interlocking: Integrating burner startup sequencing, flame safety tracking, and automated process protection scripts within one fault-tolerant controller.
• Turbine and Compressor Control: Executing high-speed speed control algorithms, real-time diagnostics, and synchronization commands for critical rotating machinery infrastructure.

Ordering Information

System Compatibility

The 3008 main processor module mounts exclusively inside the main chassis slot grid of standard Tricon v9.6 and later system architectures. A complete triad configuration mandates installing three identical 3008 modules to supervise parallel execution paths. It utilizes an addressable TriBus backplane pipeline to carry out peer inter-processor memory updates and interfaces directly with Triconex standard Communication Modules and FIO network structures.

Alternative Model: 5200CPU / Next-Generation MP

Within the evolving Triconex safety control system lineup, modern upgraded platforms utilize higher-tier controller architectures such as the 5200CPU (often deployed in specialized MicroNet or updated Tricon systems) or subsequent high-density processing variants.

Key Technical Differences

Compute Capabilities and Core Architecture
The 3008 uses a legacy 50 MHz Motorola MPC860 32-bit computing framework tailored for classic process loops, while next-generation models feature next-generation multi-core processors with shorter instruction cycles.

Redundant System Allocation Limits
The 3008 operates within strict Tricon v9.6+ backplane architectures utilizing three coordinated leg channels, whereas modern variants adapt to enhanced high-speed structural backplane links with larger tag allowances.

Onboard Application Database Memory
The current 3008 card provides a fixed storage balance of 16 MB DRAM, 32 KB battery-backed SRAM, and 6 MB Flash, while successor components offer significantly larger non-volatile workspaces.

Network Defense Implementation
The 3008 manages basic serial/ethernet pathways through secondary COMM cards, while modern replacement platforms feature integrated hardware-level secure applications directly inside the processing card boundary.

Installation & Troubleshooting FAQ

Q1: How do I initialize a triad layout using the 3008 main processor modules?

A: A functioning Tricon core demands exactly three identical 3008 main processor modules residing in the dedicated MP slot bank on the main chassis backplane. Once inserted, the cards link automatically through the triplicated TriBus hardware architecture. They utilize direct memory access to achieve leg synchronization and execute the user logic concurrently.

Q2: What logic-solving tasks are handled over the proprietary TriBus interface?

A: The TriBus consists of three independent serial links operating at 25 megabits per second. It performs two basic backplane functions: direct raw data transfer for general diagnostics/communication paths and active hardware voting. If any leg data drifts, the 2-out-of-3 voting hardware overrides and corrects the errant register on the fly.

Q3: What actions should be taken if the red "FAULT" LED illuminates on a 3008 card?

A: A solid red FAULT light confirms that the internal self-diagnostics have logged a failure in the processor, ROM, or backplane transceivers. Because the system supports full triplication, the remaining two modules will isolate the error and maintain live control. The broken 3008 card can be pulled out and hot-swapped while the system remains fully online.

Q4: How does the 3008 protect user control programs during facility power interruptions?

A: The 3008 processor features an onboard battery backup circuit attached to its 32 KB static RAM array. In the event of a total external utility power drop, this protection system preserves the complete user-written control program logic and all retentive variables for a minimum duration of six months.

Q5: How does the front panel keyswitch isolate the 3008 from unapproved program modifications?

A: When the main chassis keyswitch is turned to the RUN position, the 3008 executes the current program logic in a protected read-only state. Any external configuration requests or write commands originating from TriStation terminals, Modbus networks, or host computers are rejected automatically by the processing core.