High-Density Discrete Control for DCS Architectures
The Yokogawa ADV869 digital I/O module delivers a compact yet powerful solution for discrete signal management. This module combines 32 input channels and 32 output channels within a single unit . It significantly reduces the hardware footprint in your control cabinet. This hybrid design makes it ideal for space-constrained installations within the CENTUM VP and CS 3000 DCS environments .
Technical Specifications of the ADV869 Module
The following table details the key technical parameters for this digital I/O module.
| Parameter | Specification |
|---|---|
| Model | ADV869 |
| Input Channels | 32 channels (common every 16 channels) |
| Output Channels | 32 transistor output channels (current sink) |
| Input Resistance (OFF) | ≥ 100 kΩ |
| Input Resistance (ON) | ≤ 200 Ω |
| Voltage Input (OFF) | 4.5 to 25 V DC |
| Voltage Input (ON) | ±1 V DC |
| Input Response Time | ≤ 8 ms |
| Output Response Time | ≤ 16 ms |
| Output Rating | 30 V DC, 100 mA per channel |
| Pulse Width Capability | 8 ms to 7,200 s |
| System Current Draw | 800 mA @ 5 V DC |
| Weight | Approx. 0.30 kg |
Advanced Functionality and Integration
This module offers more than just basic I/O. It includes a pulse width modulation and time-proportional output function for applications requiring variable duty cycles . The module employs a grouped isolation strategy, sharing a common return for every 16 channels . This design enhances signal reliability and protects the system from electrical interference.
The ADV869 features a transistor-based output stage. This supports inductive and resistive loads up to 30 V DC and 100 mA per channel . It supports both dry contact and voltage input signals, providing flexibility for field device interfacing . Furthermore, the module synchronizes seamlessly with backplane polling cycles, ensuring deterministic state acquisition for critical discrete control tasks .
Details
| Weight | 0.7 kg |
|---|---|
| Dimensions | 2.5 × 20.3 × 15.2 mm |
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