Description
Technical Specifications
- Product Model: 3005
- Brand: TRICONEX
- Warranty: One Year
- Processor: Motorola MPC860, 32-bit, 50 MHz
- Memory: 16 MB DRAM, 32 KB SRAM (battery-backed)
- Input Voltage: 24 V DC backplane-powered
- Operating Temperature: -40°C to +70°C
- Storage Temperature: -40°C to +85°C
- Power Consumption: ≈10 W typical
- Communication Interface: Tricon TriBus (375 kb/s I/O bus)
- Dimensions: 20.3 × 12.7 × 5.1 cm; 0.5 kg
- Certifications: SIL 3/4 (IEC 61508)
Product Overview
The TRICONEX 3005 (EMPII V8 – Enhanced Main Processor II) serves as the central CPU for legacy Tricon v8 Safety Instrumented Systems, executing TMR safety logic through three synchronized processor channels that vote results continuously for fault tolerance. Deployed in oil & gas ESD, Fire & Gas, burner management, and HIPPS applications, it processes I/O data at 375 kb/s via TriBus while running ladder logic programs with 20 ms scan times on complex applications. The MPC860 32-bit processor with 16 MB DRAM handles thousands of safety points, achieving 99% diagnostic coverage through memory scrubbing and cross-comparison. Power and chemical engineers value its hot-swappable design enabling online replacement without process interruption, maintaining 99.999% availability during maintenance. Integrated diagnostics monitor CPU health, memory integrity, and peer communication, automatically isolating faulty channels while healthy processors sustain control. (148 words)
Key Functions
Triple CPU Synchronization
Three MPC860 processors execute identical ladder logic simultaneously; mid-value voting detects discrepancies in <1 ms, isolating faulty channels seamlessly.
Deterministic Scan Execution
Fixed 20 ms scan cycle with priority scheduling ensures critical ESD functions execute first regardless of program size or I/O count.
Comprehensive Runtime Diagnostics
Continuous RAM/ROM checks, register validation, and program checksums achieve 99% dangerous undetected failure coverage required for SIL 3/4.
Bumpless Hot-Spare Transfer
Online replacement synchronizes state via chassis heartbeat; no ladder restart or I/O state loss during maintenance switchover.
Application Scenarios
Legacy ESD System Upgrades
Refineries migrate from PLCs to Tricon v8; 3005 preserves existing ladder programs while adding TMR fault tolerance.
Fire & Gas Logic Processing
Offshore platforms run detector matrices; 16 MB DRAM handles thousands of zones while diagnostics eliminate spurious alarms.
Burner Management CPUs
Power plants execute NFPA 86 interlocks; deterministic timing meets flame supervision requirements during startup/shutdown.
HIPPS Safety Controllers
Gas plants process high-pressure protection; SIL 4 certification satisfies stringent PFDavg targets for final element voting.
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