Honeywell 51400855-100 SIO Trend Board

Product Overview

The Honeywell 51400855-100 is an SIO Trend Board (also known as Trend Pen Board, Revision L) for the Honeywell TDC 3000 distributed control system. It handles system-level trend data acquisition and display generation, supporting historical data logging and real-time process variable trending for operator stations.

Key Specifications

• Manufacturer: Honeywell
• Part Number: 51400855-100
• Product Type: SIO Board
• System Compatibility: Honeywell TDC 3000
• Revision: Rev L
• Input Power: 115 VAC
• Function: Trend data handling and display generation
• Also Known As: Trend SIO Board, Trend Pen

Applications

• Real-time process variable trending
• Historical data logging and retrieval
• Operator station display support
• Process optimization and diagnostics

FAQ

Q: Does this board store trend data locally?
A: The SIO board handles trend data acquisition and buffering; long-term storage typically resides on the system history module or external storage.

Q: Is this board required for all operator stations?
A: It is required for stations configured to display real-time and historical trends. Basic operator stations without trending may not need it.

Q: What revision should I order?
A: Rev L is the most commonly available revision. Verify compatibility with your system software revision before ordering.

Installation Guide

1. Power down the operator station chassis.
2. Install the 51400855-100 board in the designated SIO slot.
3. Connect 115 VAC power if required (verify wiring diagram).
4. Configure trend parameters via the TDC 3000 configuration tools.
5. Power up and verify trend display functionality on the operator console.

Selection Tips

• Confirm your operator station software supports the SIO Trend Board revision.
• For systems with heavy trending requirements, verify memory and processing capacity.
• Ensure proper 115 VAC grounding to prevent noise interference on trend data.
• Back up existing trend configurations before replacing the board.