Description
Technical Specifications
- Product Model: 3006
- Brand: TRICONEX
- Warranty: One Year
- NS32GX32 32-biProcessor:t, 25 MHz clock; NS32381 math coprocessor
- Memory: 2 MB SRAM, 512 KB EPROM
- Operating Temperature: 0°C to +60°C
- Storage Temperature: -40°C to +85°C
- Power Consumption: Backplane-powered
- Protection Class: IP20 (rack-mounted)
- Architecture: Triple Modular Redundancy (TMR)
- Communication Interface: Tricon backplane (TriBus)
- Supported Protocols: Native TMR peer communication
- Certifications: SIL 3/4 (IEC 61508); TÜV certified
- Dimensions: 49 × 45.3 × 6.8 cm; 2.9 kg
Product Overview
The TRICONEX 3006 (EMPII – Enhanced Main Processor II) is the core CPU module for legacy Tricon v8-v9 Safety Instrumented Systems, executing safety logic programs through triple identical processor channels that continuously vote results for fault tolerance. Deployed in oil & gas, petrochemical, and power generation ESD, Fire & Gas, and burner management applications, it processes I/O data from TMR modules, runs ladder logic or structured text programs, and maintains SIL 3/4 dangerous failure rates via 99% diagnostic coverage. Each channel features independent 32-bit NS32GX32 processors at 25 MHz with 2 MB SRAM for scan times under 20 ms on complex applications. Cross-comparison detects discrepancies in <1 ms, automatically isolating faulty channels while healthy processors maintain control. Hot-swappable design supports online replacement, preserving 99.999% availability during maintenance. (148 words)
Key Functions
Triple Processor Voting
Three identical NS32GX32 CPUs execute same program simultaneously, voting mid-value outputs; single CPU faults isolate in <1 ms without process disruption.
Comprehensive Self-Diagnostics
Continuous memory scrubbing, CPU register checks, and program execution validation achieve 99% dangerous undetected failure coverage for SIL 3/4 compliance.
Deterministic Scan Execution
20 ms maximum scan time on 1000 rungs; fixed priority scheduling ensures critical safety functions execute first regardless of program complexity.
Bumpless Hot-Swap
Online module replacement transfers execution to identical spare without ladder logic restart or I/O state loss; chassis heartbeat synchronizes state transfer.
Application Scenarios
Legacy ESD Controller Upgrades
Refineries replace obsolete PLCs with 3006-based Tricon racks; TMR voting eliminates single-point failures while preserving existing ladder logic programs.
Fire & Gas System CPUs
Offshore platforms run F&G cause-and-effect matrices; 2 MB memory handles thousands of detector points while diagnostics log spurious alarm sources.
Burner Management Processors
Power plants execute NFPA 86 flame supervision logic; deterministic 20 ms scans meet interlock timing while hot-swap supports outage maintenance.
HIPPS Main Controllers
Gas plants process high-pressure protection algorithms; SIL 4 certification satisfies most stringent PFD requirements for final element voting.
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