The TRICONEX 4351B module is part of the TRICONEX safety system by Emerson (formerly Triconex), which specializes in providing critical safety and control solutions for industries such as oil & gas, chemicals, power, and other process industries.

Product Name:

TRICONEX 4351B Module

Product Description:

The TRICONEX 4351B is a Safety I/O Module designed for use with the Tricon system, which is a high-integrity, fault-tolerant safety system that offers real-time processing for critical control and protection applications. The 4351B module is primarily used for providing input and output capabilities to the Triconex safety system, supporting both discrete and analog signals.

The module integrates seamlessly with Triconex safety systems, ensuring high reliability and availability for safeguarding plant processes. This I/O module is designed for demanding industrial environments, where uptime is crucial, and safety systems must respond quickly to any potential hazardous condition.

Product Parameters & Specifications:

• Module Type: Safety I/O module (Discrete and Analog I/O)
• Input Types:
  • Digital Inputs: 32 Discrete Input channels
  • Analog Inputs: 4 Analog Inputs (can be configured for 4-20 mA or 0-10 VDC)
• Output Types:
  • Digital Outputs: 32 Discrete Output channels
  • Analog Outputs: 4 Analog Outputs (can be configured for 4-20 mA or 0-10 VDC)
• Signal Isolation: The module provides electrical isolation between field signals and the Triconex system to protect the system from electrical faults.
• Communication:
  • Tricon Communication: Communication to the central Triconex system is via high-speed, redundant communication channels.
  • HART Communication Support: The module supports HART communication protocols for better integration with smart field devices.
• Power Supply:
  • Power is supplied from the Triconex backplane.
• Safety Integrity Level (SIL): Compliant with SIL 3 (Safety Integrity Level 3) for high safety requirements in hazardous industries.
• Redundancy: The module supports redundancy at both the I/O and system levels for high availability and fault tolerance.
• Mounting Type: DIN rail mountable for ease of installation in industrial control cabinets.
• Enclosure: The module is designed for industrial environments and typically features an IP20 protection rating for dust protection and internal components shielding.
• Diagnostics: Comprehensive diagnostics are provided to monitor the health of the I/O system, including individual I/O channels, module health, and communication status.
• Environmental Specifications:
  • Temperature Range: Typically -10°C to +60°C
  • Humidity: 5% to 95% non-condensing
  • Vibration: Designed to withstand typical industrial vibration levels
• Size:
  • The dimensions and weight of the module are designed to fit standard industrial enclosures and cabinets, though exact values will depend on the configuration.

Product Use:

The TRICONEX 4351B module is primarily used in process automation and safety-critical systems, where real-time monitoring and control of hazardous processes are required. It is designed to ensure the safety of plant operations, protect personnel, and prevent environmental damage.

Key Applications:

• Emergency Shutdown Systems (ESD): Monitoring and controlling emergency shutdown (ESD) processes to safely isolate systems in case of critical faults.
• Process Control Systems (PCS): Integration into the overall process control to manage safety and control loops.
• Fire and Gas Detection Systems: Integration with fire and gas detection systems to activate necessary actions in case of emergency conditions.
• Machine Safety: Ensuring that machine processes operate within safety limits and prevent accidents or damage to equipment.