The TRICONEX TCM 4351A (identifiable by part numbers 3000781-001 and 3000787-110) is a high-performance Trusted Communication Module designed for the Tricon v9.6 and later safety-instrumented systems. It serves as the primary gateway for communication between the Tricon controller and external systems, including distributed control systems (DCS), human-machine interfaces (HMI), and other peer-to-peer Triconex controllers. Built with the signature Triple Modular Redundancy (TMR) architecture, the 4351A ensures that communication remains active and secure even in the event of hardware failures, maintaining the highest levels of safety integrity.
Product Specifications
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Part Number: 3000781-001 / 3000787-110
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Model Type: TCM 4351A (Tricon Communication Module)
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Dimensions: 380 mm x 300 mm x 35 mm
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Weight: 2.15 kg
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Country of Origin: USA
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Ethernet Ports: 4 x 10/100 Mbps (RJ45 or Fiber Optic options)
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Serial Ports: 2 x RS-485 (Isolated) supporting Modbus ASCII/RTU
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Protocols Support: TriStation, TSAA (Triconex System Access Application), Modbus TCP/IP, Modbus Slave/Master, and Peer-to-Peer
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Redundancy: Supports TMR (Triple Modular Redundancy) configurations
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Isolation: 500 VDC galvanic isolation
Application Fields
The TCM 4351A is utilized in global critical safety applications where system failure is not an option. Key application fields include Emergency Shutdown (ESD) systems in oil and gas refineries, Fire and Gas (F&G) detection systems, Burner Management Systems (BMS) for industrial boilers, and Turbine Control in power generation plants. It is particularly valued for its ability to provide secure, high-speed data exchange between safety controllers and monitoring systems in hazardous environments.
Product Instructions
Installation of the TCM 4351A must be performed in a dedicated Tricon controller chassis. The module should be inserted into a designated COM slot until the top and bottom ejector levers click into place, ensuring a secure connection to the backplane. Configuration is managed exclusively through the TriStation 1131 software, where network parameters such as IP addresses, subnet masks, and Modbus registers are defined. It is critical to ensure that the firmware version of the TCM is compatible with the Main Processor (MP) version of the Tricon system. For high-availability requirements, two TCM modules can be installed for communication redundancy.
FAQ: Common Questions and Answers
Q: What is the difference between the 3000781-001 and 3000787-110 part numbers? A: Typically, 3000781-001 refers to the module hardware itself, while 3000787-110 may refer to the assembly or a specific revision/kit involving the baseplate or firmware variant. Both identify the TCM 4351A series.
Q: Does the TCM 4351A support cybersecurity protocols? A: Yes, the 4351A is designed with enhanced security features to protect against unauthorized access and to ensure that safety-critical communication is not compromised by external network interference.
Q: Can I use this module to connect to a non-Triconex HMI? A: Absolutely. Using the Modbus TCP/IP protocol, the TCM 4351A can interface with virtually any modern third-party HMI or SCADA system.
Find more technical specifications and stock availability for the TRICONEX TCM 4351A to maintain your plant’s safety systems.
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