Honeywell 51400700-100 LCN Interface Communication DHI Board

Product Overview

The Honeywell 51400700-100 is a DHI communication circuit board engineered for dependable Local Control Network connectivity.
It supports Honeywell TDC 3000 and Experion PKS systems, ensuring stable data exchange across critical automation environments.
Moreover, this board integrates seamlessly into Honeywell rack-mounted architectures, supporting long-term system scalability and maintenance.
Therefore, operators benefit from consistent performance, improved diagnostics, and reduced risk during continuous plant operation.

Functional Highlights

The 51400700-100 provides robust communication between controllers and the LCN backbone under demanding industrial conditions.
In addition, its fault-tolerant design supports redundancy strategies that help maintain control integrity during component failures.
Hot-swappable capability allows technicians to replace the board without shutting down the control system.
For instance, maintenance activities can proceed safely while production processes continue uninterrupted.
Moreover, integrated diagnostic monitoring improves visibility into network health and communication performance.

Technical Specifications

Manufacturer: Honeywell
Model Number: 51400700-100
Board Type: LCN Interface DHI Circuit Board
System Compatibility: Honeywell TDC 3000, Experion PKS
Primary Function: Controller communication with Local Control Network
Operating Voltage: 24 V DC
Operating Temperature Range: 0°C to +60°C
Dimensions: 12.5 × 8.5 × 1.5 cm
Weight: 1.96 lbs
Design Features: Hot-swappable design, redundancy diagnostics, galvanic isolation

Typical Applications

The Honeywell 51400700-100 is widely used in process industries requiring continuous, reliable control system communication.
For example, it supports refinery, petrochemical, power generation, and large manufacturing automation systems.
Moreover, the board integrates smoothly into existing LCN infrastructures during system expansions or modernization projects.
Therefore, it remains a practical choice for both legacy TDC 3000 systems and newer Experion PKS installations.

FAQ

Q: What is the primary role of the Honeywell 51400700-100 board?
A: It provides stable communication and data exchange between controllers and the Local Control Network backbone.

Q: Can this board be replaced without stopping the control system?
A: Yes, the hot-swappable design allows replacement during operation, reducing downtime and maintenance risk.

Q: Which Honeywell systems support this communication board?
A: It is designed for use with Honeywell TDC 3000 and Experion PKS distributed control systems.

Q: Does the board support redundancy and fault tolerance?
A: Yes, it supports redundancy monitoring and fault-tolerant communication for high-availability control environments.

Q: Is this board suitable for harsh industrial environments?
A: Yes, it features industrial-grade PCB construction and operates reliably within standard control room temperature ranges.