Honeywell 620-0081 Highway Interface Module

The Honeywell 620-0081 Highway Interface Module is a crucial component designed for integration between Honeywell’s 620-series IPC processors and the TDC 3000 distributed control system. Utilizing Honeywell’s proprietary Highway (Hiway) communication protocol, this module enables seamless and reliable data exchange in both peer-to-peer and host-slave configurations. Its robust construction and compact design ensure dependable operation in demanding industrial environments, including power plants, chemical facilities, and oil & gas installations.

Key Features

• Interfaces IPC 620 processors with TDC 3000 systems

• Supports Honeywell Hiway communication protocol

• Enables peer-to-peer and host-slave data exchange

• 24 V DC power input

• Wide operating temperature range (–40 °C to +85 °C)

• Compact, modular 8-position format

• EMI-shielded for industrial reliability

• Ideal for legacy DCS communication bridging

Technical Specifications

Industry Applications

• Distributed Control Systems (DCS)

• Power generation facilities

• Oil and gas processing plants

• Chemical manufacturing operations

• Legacy Honeywell system expansions

• Industrial automation and data acquisition

Product Advantages

• Reliable Integration: Ensures smooth communication between IPC 620 and TDC 3000

• Protocol Native: Fully compatible with Honeywell Highway specifications

• Compact Footprint: Saves space in modular rack assemblies

• Wide Environment Tolerance: Performs reliably in harsh industrial conditions

• Legacy System Support: Maintains long-term value for existing Honeywell infrastructure

• Proven Design: Deployed across thousands of legacy DCS environments

• Simplified Configuration: Easy to install and configure within existing setups

• Sturdy Construction: Industrial-grade build quality

• Global Availability: Still supported via third-party and refurbished markets

• Minimal Downtime: Streamlined replacement process for legacy systems

Frequently Asked Questions (FAQ)

1. What is the purpose of the Honeywell 620-0081 module?

   It serves as a communication interface between IPC 620 processors and Honeywell TDC 3000 systems.

2. What protocol does it use?

   It uses Honeywell’s proprietary Highway (Hiway) protocol.

3. Is this module still manufactured by Honeywell?

   No, it has been discontinued but is still available from third-party and refurbished suppliers.

4. Can it operate in extreme temperatures?

   Yes, its range is –40 °C to +85 °C.

5. What type of power input is required?

   It operates on 24 V DC power.

6. What is the module’s form factor?

   It is an 8-position modular unit designed for rack mounting.

7. Does it support peer-to-peer communication?

   Yes, it supports both peer-to-peer and host-slave modes.

8. Where is it commonly used?

   In industrial environments like power plants, refineries, and chemical facilities.

9. How is it typically installed?

   It slots into Honeywell IPC 620-series modular racks.

10. Is documentation available for integration?

    Yes, through Honeywell’s legacy IPC manuals or technical distributors.