The Triconex 8120E is an enhanced-performance main chassis under Schneider Electric Triconex series. It serves as the core hardware carrier for the Tricon v11.x Safety Instrumented System (SIS), engineered specifically for safety-critical control applications in harsh industrial environments. Adopting a Triple Modular Redundancy (TMR) architecture, it integrates high-speed backplane bus, redundant power supply and modular expansion capabilities, acting as the core base to deliver high-reliability and high-availability fault-tolerant control.
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Product Advantages
Ultimate Safety & Fault ToleranceFeatured full Triple Modular Redundancy (TMR) design with independent power supplies, processors and I/O channels to eliminate single-point failures. It is certified for SIL3 functional safety level and complies with IEC 61508 and IEC 61511 standards.
High-Performance BusEquipped with 1000 Mbps high-speed TriBus backplane bus when paired with 3009 processor. It delivers superior data throughput than peer products and ensures millisecond-level response.
Modular & Highly ExpandableComes with 5 logic I/O slots plus 2 dedicated communication slots (COM1/COM2). It supports up to 15 racks and 118 I/O modules in total, perfectly suitable for large-scale system deployment.
Hassle-Free Online MaintenanceAll modules including processor, power supply, I/O and communication modules support hot swapping. Faulty modules can be replaced online without system downtime.
Wide Environmental AdaptabilityOperating temperature ranges from 0°C to 60°C, adaptable to Class G3 harsh corrosive environments. It holds multiple industrial certifications such as TÜV, ATEX and UL.
Full Lifecycle DiagnosisBuilt-in hardware-based on-line diagnosis covers the whole links of processor, power supply, I/O and communication. It enables accurate fault location and simplifies maintenance work.
Core Specifications
1. Hardware Architecture
- Rack Form Factor: 19-inch standard rack-mounted, dimension: 483×578×451 mm, weight approx. 24.5 kg
- Slot Layout: 5 logic I/O slots, 1 COM1 slot, 1 COM2 slot (UCM module exclusive)
- Processor Compatibility: Exclusively matched with Model 3009 main processor for Tricon v11.x; incompatible with 3008/3006 series
- Redundant Power Supply: Dual redundant 24VDC±15% power modules with independent power supply and automatic switchover
2. Communication Performance
- Backplane Bus: High-speed TriBus, 1000 Mbps with 3009 processor
- Supported Protocols: Modbus TCP, Ethernet/IP, RS-485 and dedicated Triconex protocols, compatible with UCM/TCM communication modules
- Remote Expansion: Realizes remote I/O extension up to 12 km with SRXM module
3. Environmental Parameters & Certifications
- Operating Temperature: 0°C ~ 60°C
- Storage Temperature: -40°C ~ 75°C
- Humidity Range: 5% ~ 95% non-condensing
- Certifications: IEC 61508 SIL3, TÜV, ATEX Zone 2, UL 1998, Nuclear 1E (partial configurations)
Application Scenarios
Petrochemical IndustryReactor safety control, Emergency Shutdown (ESD), flare system monitoring.
Oil & Gas IndustryPipeline pressure protection, refinery fault-tolerant control, compressor anti-surge control.
Power & Energy SectorNuclear power Class 1E safety systems, thermal power boiler protection, gas turbine control.
Chemical & Pharmaceutical IndustrySafety interlock for high-pressure reactors, toxic gas monitoring.
Industrial Safety FieldFire & Gas (F&G) systems, SIS system upgrading and renovation.
Operation Guide
1. Pre-installation Preparation
Environment: Ambient temperature 0~60°C, humidity 5%~95% non-condensing, keep away from strong electromagnetic interference.Power Supply: Dual redundant 24VDC±15% power supply with power rating ≥240W.Tools: Standard 19-inch cabinet, anti-static wristband, screwdriver.
2. Hardware Installation
Rack Mounting: Install 8120E into 19-inch cabinet vertically and reserve space for heat dissipation.Power Module Installation: Insert two redundant power modules and connect dual 24VDC power sources.Processor Installation: Install three 3009 main processors for TMR architecture and fasten the buckles firmly.Module Expansion: Insert I/O modules into logic slots, and UCM/TCM communication modules into COM slots.Wiring: Connect field signals to I/O terminals, link communication ports to host computer/DCS, and wire redundant power sources to power terminals.
3. Software Configuration
Software: Adopt TriStation 1131 (v11.x) programming software.Communication: Set IP address and communication protocols such as Modbus TCP, then connect the programmer.Program Download: Compile safety control programs and download them to 3009 processors.Diagnosis: Enable online diagnosis to verify module status and redundancy switching functions.
4. Routine Maintenance
Regular Inspection: Check PASS/FAULT indicator lights of power supplies, processors and I/O modules regularly.Hot Swap Replacement: Replace faulty modules directly without system shutdown.Firmware Upgrade: Complete online upgrade via TriStation to keep the system updated.
FAQ
- Which processors are compatible with 8120E?It only supports Model 3009 main processor for Tricon v11.x, and is not compatible with 3008/3006 series.
- What is the maximum expandable I/O capacity?It supports up to 15 racks and 118 I/O modules in total, meeting the demands of large-scale factory applications.
- Will the system shut down in case of power failure?No. Adopting dual redundant power supply design, it switches over automatically when one power supply fails without any system impact.
- Is online module replacement available?Yes. All modules support hot swapping. Faulty modules can be replaced directly without interrupting system operation.
- What communication protocols does it support?It supports Modbus TCP, Ethernet/IP, RS-485 and exclusive Triconex protocols, and is compatible with UCM and TCM modules.
- What is the operating temperature range?Operating temperature: 0°C~60°C; Storage temperature: -40°C~75°C, suitable for harsh industrial environments.
Related brand series products
8111 - Expansion Chassis
8112 - Remote Chassis
8121 - Low-Power Enhanced Expansion Chassis
3009 - Main Processor
3009X - Enhanced Main Processor
3501T - 16-Channel TMR Digital Input Module
3625 - TMR Digital Output Module
3351S2 - Analog Input Module
3482 - High-Current Analog Output Module
4351B - TCM Communication Module
4610X - UCM Unified Communication Module
4119A - EICM Enhanced Intelligent Communication Module
8312 - Power Supply Module
4201 - RXM Remote Extender Module
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