Description

The Honeywell TK-MDP081 (Part Number 51404351-175) is a conformal coated, single-slot High Speed Pulse Input (PI) specialty module developed for the Honeywell Experion Series-A Chassis I/O (CIOM-A) platform. Designed to provide accurate pulse counting and frequency processing, the module features 8 high-speed counter input channels alongside 2 dedicated On/Off outputs. It acts as a specialized process interface for turbine meters, flowmeters, tachometers, and other pulse-generating field equipment within Honeywell C200 and C200E control systems.

Engineered to operate seamlessly across Experion control networks, the TK-MDP081 communicates across the chassis backplane and integrates into the system topology via ControlNet interface modules. Its onboard counting capabilities process high-frequency pulse trains locally, alleviating CPU processing overhead and ensuring precise totalization, rate measurement, and real-time control response.

As part of the Experion Series-A chassis family, the module mounts directly into any available slot position within 4-, 7-, 10-, 13-, or 17-slot Series-A chassis. Built-in conformal coating ensures long-term operational integrity in harsh industrial environments containing airborne corrosive contaminants.

Features

• High-Density Channel Design: Equipped with 8 high-speed counter inputs and 2 discrete On/Off outputs in a single-slot form factor.
• Conformal Coating Protection: Comes standard with factory conformal coating (TK prefix) to withstand ISA Class G3 harsh environmental conditions.
• System Integration: Operates within the Experion CIOM-A chassis family and interfaces directly with C200 and C200E control processors via ControlNet.
• Flexible Termination Options: Uses a standard 36-pin removable terminal block (TC-TBCH) or pre-wired Remote Terminal Panel (RTP) cable assemblies for efficient cabinet wiring.
• Hot-Swappable Maintenance: Supports Removal and Insertion Under Power (RIUP) in ordinary (non-hazardous) locations to minimize operational downtime during service.

Applications

• Flow Totalization & Rate Monitoring: Direct interface to pulse-output liquid/gas flowmeters and turbine meters.
• Rotational Speed & Velocity Tracking: Processing tachometer and encoder pulse feedback on rotating machinery, pumps, and motors.
• Batching & Dosing Control: High-speed event counting combined with onboard discrete outputs for direct valve or actuator control.
• Pulse Signal Processing: Accumulation and frequency evaluation of high-speed field signals in industrial process control.

Technical Specifications

General

I/O Capacity & Features

Environmental

Connections / Interfaces

Installation Guidelines

1. Pre-Installation Inspection: Verify the module part number (TK-MDP081 / 51404351-175) and inspect the board and pins for physical damage prior to installation.
2. Power & Backplane Check: Ensure the Series-A power supply capacity (24 VDC, 5 VDC, 3.3 VDC, and 1.2 VDC outputs) is calculated to support all installed modules without exceeding the 70 W / 75 W total output limit.
3. Chassis Slot Insertion: Align the single-wide module with the guide rails of the target slot in the CIOM-A chassis and push firmly until the module is securely latched into the backplane connector.
4. Wiring Termination: Connect field pulse signals to either the 36-pin TC-TBCH terminal block or the pre-wired Allen-Bradley 1492 RTP cable assembly.
5. Shielding & Grounding: Route pulse input signal cables separately from high-voltage AC lines to prevent electrical noise interference on high-speed counting lines. Ensure shield wires are properly grounded at designated panel tie-points.
6. Hot Swapping (RIUP): Removal and insertion under power is permitted in non-hazardous locations. Ensure hot-work permits are obtained if operating in Class I, Division 2 hazardous areas.

Compliance and Certifications