



The ABB DI685 is a high-performance digital input module designed to deliver reliable and precise signal acquisition for industrial automation systems. With the ability to support a large number of discrete input signals, the DI685 is ideal for large-scale process control, manufacturing automation, and energy management systems. This module provides excellent isolation and noise immunity, ensuring accurate signal detection even in harsh industrial environments. The DI685 seamlessly integrates into ABB’s control systems, such as 800xA and Freelance, enabling high-density I/O solutions for complex automation needs.
Technical Specifications
| Feature | Specification |
|---|---|
| Model | ABB DI685 |
| Module Type | Digital Input Module |
| Number of Inputs | 32 Digital Inputs |
| Input Voltage | 24 V DC |
| Current Draw | 4.5 mA per input |
| Signal Type | Discrete / Binary |
| Electrical Isolation | 250 V RMS (Input to Output Isolation) |
| Input Filtering | Built-in noise suppression |
| Response Time | Fast response for real-time monitoring |
| Mounting Type | System I/O rack (compatible with ABB racks) |
| Operating Temperature Range | −20°C to +60°C |
| Dimensions (L×W×H) | 140 mm × 160 mm × 55 mm |
| Weight | 0.38 kg |
Recommended Related Models
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ABB DI620 – Compact digital input module with a lower channel count, suitable for smaller applications.
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ABB DI630 – High-density input module with diagnostic features for more demanding applications.
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ABB DO685 – Digital output module designed for use in tandem with the DI685.
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