ABB DDI 01 Digital Input Module

Product Overview

The ABB DDI 01 (0369626M-EXC) is a high-performance digital input interface designed for the Bailey INFI 90 and Network 90 DCS. This module (Version 3 and later) integrates discrete field signals like limit switches and relay contacts into control logic.

Technical Specifications

• Manufacturer: ABB Bailey Controls

• Model Designation: DDI 01

• Product ID / Order Number: 0369626M-EXC

• Hardware Revision: Version 3 (V3) and higher

• Product Type: Digital Input (DI) I/O Module

• System Compatibility: Bailey INFI 90 / Network 90 DCS Architecture

• Signal Input Type: Discrete / Digital (ON/OFF) binary signals

• Isolation Architecture: Optically isolated channels for backplane protection

• Customs Tariff Number: 85389091

• Form Factor: Standard INFI 90 module for MMU mounting

• Standardization: Designed for high-availability industrial process control

Functional Advantages and System Integration

The DDI 01 (0369626M-EXC) is engineered for critical environments like power utilities and petrochemical plants. The V3 revision features advanced filtering to eliminate "contact bounce" and EMI, ensuring only genuine state changes are processed. Its exchange-ready design supports rapid replacement in existing racks to minimize downtime. The module also includes internal status reporting, allowing the Multi-Function Processor (MFP) to continuously monitor input loop health and module integrity.