ICS Triplex T8448 Trusted TMR 24 VDC 40‑Channel Zone Interface Module

Technical Specifications

  1. Mechanical Specifications
    • Form Factor: Trusted chassis‑mounted module (fits T8100 controller/T8300 expander chassis slots)
    • Dimensions (H×W×D): 241 mm × 51 mm × 181 mm (9.5 in × 2.0 in × 7.1 in)
    • Weight: 1.2 kg (2.65 lb)
    • Front Panel: 40 channel status LEDs (green = active), power LED (green), fault LED (red), hot swap release lever
    • Mounting: Tool‑less insertion into Trusted chassis
    • Material: Industrial‑grade PCB with conformal coating; metal shielded enclosure for EMC compliance
    • Connectors: 96‑way C‑type backplane connector; dual redundant 24 VDC power inputs (diode‑ORed)
  2. Electrical Specifications
    • Channel Type: 40 independent 24 VDC sinking/sourcing channels (configurable per channel)
    • Input/Output Voltage: 24 VDC (18–30 VDC operating range)
    • Input Current: 10 mA per channel (max)
    • Power Supply: 20–32 VDC redundant backplane supply (24 VDC nominal)
    • Power Consumption: < 9 W maximum
    • Isolation: 2500 VDC galvanic between channels, backplane, and field circuits
    • Update Rate: 5 ms per channel
    • Overcurrent Protection: 20 mA per channel (self‑resetting)
    • Overvoltage Protection: ±36 VDC (no damage to channels)
    • Diagnostics: On‑board open/short circuit detection; TMR voting discrepancy alerts; power fault monitoring
Category:
Description
  1. Environmental Specifications
    • Operating Temperature: -40°C to +70°C
    • Storage Temperature: -40°C to +85°C
    • Relative Humidity: 5%–95% (non‑condensing)
    • Shock Resistance: 30 g, 11 ms duration (per IEC 60068‑2‑27)
    • Vibration Resistance: 5 g, 10–150 Hz (per IEC 60068‑2‑6)
    • EMI/EMC Compliance: EN 61000‑6‑2 (immunity), EN 61000‑6‑4 (emissions); CE, UL certified
    • Hazardous Area Certifications: ATEX II 2G Ex ia IIC T4 Ga; IECEx IECEx Ex ia IIC T4 Ga
  2. Safety & Compliance
    • Safety Certification: TÜV Certified IEC 61508 SIL 3; UL 61010‑1; CSA C22.2 No. 61010‑1; CE marked
    • Fault Tolerance: TMR TriVote 2oo3 voting; no single point of failure
    • Mean Time Between Failures (MTBF): 1,000,000 hours (per Telcordia SR‑332, 25°C)
    • Voting Logic: 2oo3 majority voting for channel signals; automatic fault correction via TriVote
    • Safety State: Channels default to safe state (de‑energized) on fault

Functional Features

  1. 40 Independent Channels: High‑density 24 VDC interface reduces chassis slot count for large‑scale zone isolation.
  2. TMR TriVote 2oo3 Voting: Eliminates single points of failure via triplicated processing and automatic fault correction.
  3. 2500 VDC Isolation: Prevents fault propagation between field zones, backplane, and channels.
  4. SmartSlot Hot Swap: Module replacement without system shutdown for minimal downtime.
  5. Redundant Power: 20–32 VDC diode‑ORed backplane supply for power fault immunity.
  6. 5 ms Update Rate: Rapid signal routing for time‑critical safety responses.
  7. 1 ms SOE Reporting: Captures zone events for audit trails and root‑cause analysis.
  8. Overcurrent/Overvoltage Protection: Self‑resetting 20 mA/±36 VDC protection prevents channel damage.
  9. Open/Short Circuit Detection: Real‑time alerts for field wiring faults via Trusted system software.
  10. Configurable Channel Polarity: Sinking/sourcing per channel for sensor/actuator flexibility.
  11. Hazardous Area Ready: ATEX/IECEx certifications for explosive atmosphere deployment.
  12. Front‑Panel Diagnostics: Channel status, power, and fault LEDs enable rapid troubleshooting.
  13. Wide Temperature Range: Operates from -40°C to +70°C for extreme industrial conditions.

Application Scenarios

  1. Oil & Gas Upstream: Isolates 40 24 VDC wellhead pressure switches and ESD valves in zone 1 hazardous areas, with TMR voting for fault tolerance.
  2. Chemical Plant Fire & Gas: Interfaces 40 gas detectors and flame sensors to SIS, using isolation to prevent cross‑zone faults during gas releases.
  3. Power Generation Turbines: Routes 24 VDC signals from turbine vibration switches and lube oil pressure sensors, with 5 ms update for rapid trip responses.
  4. Marine Offshore Platforms: Isolates 40 24 VDC navigation and safety sensors in saltwater environments, with corrosion‑resistant design for harsh conditions.
  5. Mining Underground: Interfaces 40 conveyor emergency stops and gas monitors, with hot swap for remote maintenance in dusty, humid mines.
  6. Pharmaceutical Batch Control: Routes 24 VDC valve positioners and flow switches in GMP‑compliant processes, ensuring signal integrity and SIL 3 compliance.

Additional Information

  • Origin: United States
  • Warranty: 12‑month warranty for new original units; extended warranties via Rockwell Automation service contracts
  • Compatibility: Trusted controller chassis, T8300 expander chassis, T8311/T8311C expander interface modules
  • Installation: Tool‑less insertion into Trusted chassis; wire 24 VDC field devices to backplane connector; connect redundant 24 VDC power
  • Maintenance: Hot swap for replacement; inspect LEDs for channel/power status; no periodic calibration required
  • Accessories: Trusted system software, 24 VDC field wiring harnesses, backplane connector adapters, TriVote configuration tools
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