Honeywell 51155128-200 Embedded Automation Computing Module

Overview

The Honeywell 51155128-200 is an embedded computing and control expansion module engineered for Honeywell distributed control system (DCS) architectures. It integrates industrial-grade processing hardware with robust communication interfaces, enabling advanced data handling, system coordination, and platform scalability in continuous-duty automation environments.

Rather than serving as a simple I/O interface, this module functions as a compact industrial computing unit, supporting high-performance control logic execution, protocol handling, and system integration tasks within Honeywell automation frameworks.

Core Hardware Architecture

The Honeywell 51155128-200 is built around an Intel Atom industrial processor platform, providing a balance of low power consumption and sustained computational capability required for real-time control and supervisory automation roles.

Key hardware capabilities include multi-core processing for parallel task execution, large memory support for control databases and runtime environments, and onboard expansion resources for future system growth.

• Processor: Intel Atom industrial CPU, multi-core architecture (up to 8 cores depending on configuration)
• System Memory: Expandable DDR memory support up to 32 GB
• Storage Capacity: Solid-state storage support up to 2 TB
• Expansion Interface: PCIe lanes for function or communication expansion
• Video Output: HDMI interface for local diagnostics or service display
• USB Interfaces: USB 3.0 ports for service tools and peripheral connectivity
• Network Interfaces: Dual Gigabit Ethernet ports for redundant or segmented networks

Electrical Characteristics

Designed for direct integration into industrial control cabinets, the 51155128-200 operates from standard control system power supplies while maintaining low current draw.

• Supply Voltage: 24 VDC
• Typical Current Consumption: Approximately 100 mA
• Power Regulation: Integrated industrial-grade regulation and protection circuitry

Environmental Specifications

This module is rated for deployment in harsh industrial environments, including control rooms and field enclosures subject to temperature variation and humidity.

• Operating Temperature Range: –20 °C to +60 °C
• Storage Temperature Range: –40 °C to +85 °C
• Relative Humidity: 0–95%, non-condensing
• Design Compliance: Industrial vibration and thermal tolerance standards

Mechanical Characteristics

The compact mechanical footprint allows the Honeywell 51155128-200 to be installed in space-constrained cabinets while maintaining service accessibility.

• Enclosure Form Factor: Compact embedded module
• Dimensions: 12.7 × 12.7 × 1.27 cm
• Weight: 0.22 kg
• Mounting: Designed for secure panel or system rack integration

Typical Applications

This module is commonly deployed in Honeywell automation environments requiring enhanced processing or communication capability, including:

• Distributed control system (DCS) computing expansion
• Advanced process data aggregation and preprocessing
• Protocol handling and system-to-system communication
• Control system modernization and lifecycle extension projects
• Redundant or distributed automation architectures

Frequently Asked Questions

Is the Honeywell 51155128-200 a standard I/O module?

No. The 51155128-200 functions as an embedded automation computing module rather than a discrete I/O interface. It provides processing, communication, and expansion capabilities.

Can this module be used for system upgrades?

Yes. It is often selected for Honeywell DCS upgrades where additional computing capacity or modern communication support is required without replacing the entire control platform.

Does it support redundant networking?

Yes. Dual Gigabit Ethernet ports allow network redundancy or logical network separation depending on system design.