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ICS TRIPLEX(三重冗余)
ICS TRIPLEX T8403 Trusted TMR 24Vdc Digital Input Module--KIMI
  • Warehouse: Spot
  • Warranty: 365 days
  • Quality: Original module
  • Condition: New
  • Shipping method: Courier delivery

  • Contact person: LI MING
  • Contact number: +86 18059884790
  • WeChat:18059884790
  • E-mail: plc66@qq.com

Product Description


ICS TRIPLEX T8403 Trusted TMR 24Vdc Digital Input Module
40-Channel Digital Input for Safety Instrumented Systems (SIS) & Critical Control
1. Product Overview

The ICS TRIPLEX T8403 is a core 24Vdc digital input module of the Trusted TMR (Triple Modular Redundancy) series, designed for high-integrity signal acquisition in safety instrumented systems (SIS) and critical industrial control applications. As a Rockwell Automation-owned ICS Triplex product, it features 40 individually isolated digital input channels, each processed by three independent circuits with 2-out-of-3 voting logic to eliminate single-point failures. Equipped with comprehensive onboard diagnostics, 1ms-resolution Sequence of Events (SOE) reporting, and hot-swappable capability, it ensures reliable detection of open/short circuit faults, precise event logging, and seamless online maintenance. Certified to IEC 61508 SIL 3, the T8403 integrates with Trusted SIS to support emergency shutdown (ESD), fire & gas, turbine protection, and BPCS in oil & gas, power generation, chemical, and marine industries, delivering 99.999% system availability and enhanced operational safety.


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2. Key Technical Specifications
• Brand & Model: ICS TRIPLEX T8403 (Trusted TMR Series)
• Product Type: 24Vdc Digital Input Module (SIS/Critical Control Spare)
• Input Channels: 40 Individually Isolated Digital Inputs (TMR Architecture)
• Input Voltage: 24 VDC Nominal (18-32 VDC Operating Range)
• Input Type: Dry Contact / Wet Contact (Opto-Galvanic Isolation)
• Isolation Rating: 2500 V Impulse Withstand (Channel-to-Channel/Backplane)
• Voting Logic: 2-out-of-3 (2oo3) Hardware Voting for Fault Tolerance
• SOE Resolution: 1 ms (Sequence of Events Reporting)
• Diagnostics: Open/Short Circuit Detection, Channel Self-Test, Module Health Monitoring
• Communication: Trusted Backplane, Modbus RTU/TCP, PROFIBUS-DP
• Hot Swap: Supported via Companion/SmartSlot Configurations
• Operating Temperature: -40°C to +70°C (-40°F to +158°F)
• Dimensions: 160 mm × 100 mm × 60 mm (6.30" × 3.94" × 2.36")
• Weight: Approx. 0.8 kg (1.76 lb)

• Certifications: IEC 61508 SIL 3 (TÜV), CE, UL, ATEX


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3. Core Features
• TMR Redundancy: Triple parallel processing & 2oo3 voting to avoid single-point failures.
• High Isolation: 2500V impulse protection prevents cross-talk and noise interference.
• Precision SOE: 1ms event logging enables accurate incident analysis and root-cause diagnosis.
• Comprehensive Diagnostics: Detects field wiring faults (open/short) and module hardware errors.
• Hot-Swappable: Online replacement without system shutdown for minimal downtime.
• Wide Temperature Range: Operates reliably in extreme industrial environments.
• SIL 3 Certified: Meets IEC 61508 for safety-critical applications.

• Backplane Compatibility: Seamless integration with Trusted SIS Controllers.


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4. Typical Applications
• Emergency Shutdown (ESD): Offshore platforms, refineries, chemical plants.
• Fire & Gas (F&G) Detection: Petrochemical facilities, LNG terminals, power plants.
• Turbine/Generator Protection: Steam/gas turbine overspeed, vibration, and lubrication monitoring.
• Burner Management Systems (BMS): Boiler safety, flame detection, and fuel flow control.
• Marine & Offshore: Dynamic positioning, cargo handling, and vessel safety systems.

• Pharmaceutical/Bioprocess: Batch control, pressure relief, and environmental monitoring (SIL 3 Compliance).


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5. Installation & Maintenance
Installation Steps
• Mounting: Trusted Chassis Backplane Slot (Ensure Proper Grounding & EMC Shielding).
• Wiring: Connect 24 VDC Field Power, Input Signals (Dry/Wet Contacts), and Backplane Communication.
• Configuration: Set Channel Logic (NO/NC), SOE Enable, and Diagnostic Thresholds via Trusted Software.
• Testing: Verify Input Response, Voting Logic, SOE Logging, and Fault Detection.
Maintenance Tips
• Daily: Monitor Module Health & Channel Status via SIS HMI/DCS.
• Weekly: Inspect Wiring/Connectors for Damage/Loose Connections.
• Monthly: Validate SOE Time Synchronization and Calibrate Input Thresholds.
• Quarterly: Perform Backplane Communication & Redundancy Voting Checks.
• Hot Swap: Replace Faulty Module Online (No System Shutdown Required).
• Annual: Full System Diagnostics & Software/Firmware Update (Per Vendor Guidelines).
Technical Document | ICS TRIPLEX T8403 | 40-Channel TMR Digital Input Module | Safety Instrumented Systems
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