ICS Triplex T8431C

Technical Specifications

1. Electrical Specifications
   • Operating Voltage: 20–32 VDC (rated 24 VDC)
   • External Fusing: 20 A external fuse for power input protection
   • Backplane Power: Redundant power distribution to all module slots; 80 W maximum total power dissipation
   • Backplane Architecture: Triple redundant Inter - Module Bus (IMB) for TMR communication and voting
   • Isolation: Reinforced isolation between field circuits, backplane, and chassis ground
   • SOE (Sequence of Events) Buffer: 1000 local events, with a 4000 - event CI (Communication Interface) buffer for post - incident analysis
2. Mechanical Specifications
   • Form Factor: 19" standard rack - mount chassis, compatible with EIA - 310 - D rack standards
   • Module Slots: Supports up to 16 T8000 - series I/O, processor, and communication modules
   • Connectors: 10×DIN 41642 male connectors for field and backplane connections
   • Indicators: Front - panel LEDs for global power status, backplane health, and module fault alerts; optional front - door window for LED visibility
   • Protection Rating: IP20 (front panel); protects against dust and finger contact
   • Weight: Approximately 10 kg (varies by configuration)

Technical Specifications

1. Electrical Specifications
   • Operating Voltage: 20–32 VDC (rated 24 VDC)
   • Power Consumption: 30 VA (max)
   • Memory Capacity: 32 MB RAM, 128 MB flash memory for program and data storage
   • Processor Architecture: Hardware - Implemented Fault - Tolerant (HIFT) with triple redundant processing cores
   • Communication Interfaces: Front - panel RS232 serial port, Ethernet (TCP/IP), Modbus TCP/IP; supports redundant communication links
   • Time Synchronization: IRIG - B002 and B122 time code input for precise event correlation
   • Isolation: Reinforced electrical isolation between field circuits, backplane, and module core
2. Mechanical Specifications
   • Chassis Compatibility: Exclusively designed for T8100 Trusted TMR controller chassis
   • Form Factor: Standard T8000 - series module size, 19" rack - mount compatible
   • Weight: Approximately 1.9 kg (varies slightly by revision)
   • Mounting: Hot - swappable via push - button "education" function; no system shutdown required for replacement
   • Indicators: Front - panel LEDs for power status, module health, fault alerts, voting status, and communication link integrity

• Output Channels: 40 digital output channels for controlling external devices like valves, motors, and relays.
• Voltage Range:
  • System power supply: 20–32 V DC
  • Working output/field voltage: 18–60 V DC
• Isolation: 2500 V pulse-tolerant optical isolation barrier to prevent electrical interference.
• Protection: Automatic overcurrent protection per channel (no external fuses required).
• Response Time: Sub-millisecond switching for real-time control.
• Event Reporting: Sequence of Events (SOE) logging with 1 ms resolution for troubleshooting.
• Power Groups: 8 independent power groups (5 outputs per group) for flexible device power management.
• Environmental Rating: IP20 enclosure (dust-protected, non-immersion-resistant).
• Operating Temperature: -40°C to +70°C, suitable for extreme industrial conditions.
• Communication Protocols: Supports Modbus, Profibus, and Foundation Fieldbus for seamless integration.

• The T8800 series is known for its triple modular redundancy (TMR) architecture, which provides a high level of fault tolerance by using three parallel processing units.
• Designed to meet SIL 3 (Safety Integrity Level) requirements according to the IEC 61508 standard, ensuring it can be reliably used in safety-critical systems.
• Capable of operating within a specified temperature range suitable for harsh industrial environments, contributing to its robustness and reliability.
• Supports various input/output configurations tailored to handle different types of signals from sensors, actuators, and other field devices.