TRICONEX 4500 | Highway Interface Module (HIM)

The Triconex 4500, also known as the Highway Interface Module (HIM), is a specialized communication interface designed for the Tricon Triple Modular Redundant (TMR) controller. Its primary function is to act as a bridge between the Tricon safety system and the Honeywell TotalPlant Solution (TPS) or TDC 3000 Local Control Network (LCN). This allows the Triconex safety system to appear as a native node on the Honeywell highway, enabling seamless integration of safety data into the DCS monitoring and control environment without compromising the safety integrity of the Tricon controller.

Product Specifications (Datasheet)

  • Model: 4500

  • Module Type: Highway Interface Module (HIM)

  • Compatibility: Tricon v9.x, v10.x, and v11.x Systems; Honeywell TDC 3000 / TPS

  • Dimensions: 430 mm x 300 mm x 31 mm (H x D x W)

  • Weight: 1.65 kg

  • Country of Origin: USA

  • Power Consumption: < 20 Watts

  • Network Connection: Dual Redundant Coaxial (Honeywell LCN standard)

  • Interface Protocol: Honeywell LCN / UCN Native Protocol

  • Isolation: Optical and Galvanic isolation for safety loop protection

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Key Application Fields

  • Integrated Control and Safety Systems (ICSS): Providing a unified operator interface between Honeywell DCS and Triconex SIS.

  • Oil & Gas Refineries: Facilitating high-speed data transfer for process alarms and trip statuses to the main control room.

  • Petrochemical Plants: Centralized monitoring of emergency shutdown (ESD) loops via the Honeywell Global User Station (GUS).

  • Legacy System Migrations: Integrating modern Triconex safety controllers into existing Honeywell TDC 3000 infrastructure.

  • Power Generation: Coordinating safety interlocks with balance-of-plant control systems.

Product Usage Instructions

  1. Installation: Insert the 4500 module into a designated COM slot in the Tricon main chassis. Secure the module using the top and bottom mechanical fasteners.

  2. Cabling: Connect the dual redundant coaxial cables from the Honeywell LCN network to the connectors on the front of the HIM or via the associated External Termination Panel (ETP).

  3. LCN Address Setup: Configure the Honeywell node address for the HIM. This is typically done through hardware switches on the module or via the Honeywell engineering environment.

  4. Database Configuration: Use the Honeywell Data Hiway or LCN configuration tools to map the Tricon points (AI, DI, DO, AO) so they can be read by the DCS.

  5. Status Check: Observe the “Pass” and “Active” LEDs. For a healthy redundant setup, both HIM modules (if paired) should show active status, indicating synchronization with the Honeywell highway.

Q&A: Frequently Asked Questions

Q: Is the 4500 HIM required for Modbus communication? A: No. The 4500 is specifically for the Honeywell LCN/TDC 3000 highway. For Modbus (Serial or TCP), you should use a TCM module like the 4351B.

Q: Does the 4500 support hot-swapping? A: Yes. Like most Triconex modules, the 4500 is hot-swappable. In a redundant HIM configuration, removing one module will not disrupt communication as the partner module takes over the full load.

Q: Can I use this module to connect to a modern Honeywell Experion PKS system? A: While the 4500 was designed for the LCN network, it can still be used if the Experion system includes an LCN bridge. However, for newer native Experion integrations, the TCM with Modbus TCP is often preferred.

Q: What happens if the Honeywell highway fails? A: The Tricon safety logic operates independently of the 4500. A failure of the HIM or the highway only affects monitoring and operator visualization; it does not affect the controller’s ability to execute its safety mission.

Find the 4500 and other specialized Triconex-to-DCS interface hardware to optimize your plant’s communication architecture.

Similar Model Recommendations

  1. Triconex 4502: A related highway interface module variant designed for specific legacy system revisions.

  2. Triconex 4351B: The standard communication module for Ethernet and Serial protocols (Modbus).

  3. Triconex 4353: An advanced communication module featuring enhanced security for critical data links.

  4. Honeywell 51403519-160: A typical LCN interface component often found on the other side of the HIM connection.

  5. Triconex 3008: The main processor that provides the data which the 4500 HIM transmits to the DCS.

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