51400955-100 | Honeywell Process Network Interface Board

Product Overview

The Honeywell 51400955-100 is a PNI (Processing Node Interface) Board for the Honeywell TDC 3000 distributed control system. It serves as the interface between processing nodes and the system backplane, managing data exchange and node addressing for distributed control applications.

Key Specifications

• Manufacturer: Honeywell
• Part Number: 51400955-100
• Product Type: PNI / Processing Node Interface Board
• System Compatibility: Honeywell TDC 3000, TPS
• Function: Processing node interface and backplane communication
• Also Known As: PWB, PNI

Applications

• Processing node backplane interface
• Distributed control node management
• System expansion and retrofit projects
• Redundant node configurations

FAQ

Q: What does PNI stand for?
A: PNI stands for Processing Node Interface. It bridges processing modules with the system backplane and network.

Q: Is the PNI board required for every processing node?
A: Yes, each processing node typically requires its own PNI board for proper backplane communication.

Q: Can this board be used in redundant configurations?
A: Yes, PNI boards support redundant node setups when paired with appropriate redundancy hardware.

Installation Guide

1. Power down the chassis and observe ESD safety.
2. Install the 51400955-100 board in the designated PNI slot.
3. Connect backplane and network cables per the wiring diagram.
4. Configure node addresses using the system configuration tools.
5. Power up and verify node communication via diagnostic utilities.

Selection Tips

• Confirm the number of processing nodes in your system to order the correct quantity.
• Verify node address availability before installation.
• For redundant nodes, order PNI boards in pairs.
• Ensure firmware compatibility between PNI and processing modules.