Product Overview

The ADV151‑P50 S1 is a 32‑channel digital input module designed for process automation and distributed control systems. It belongs to the ADV151 series of digital input I/O modules by Yokogawa.

This module is designed to accept 24 V DC discrete ON/OFF signals from field devices such as limit switches, pressure switches, relays, push‑buttons and sensors, and convert them into logic input signals for the control system. The variant suffix “P50” denotes a particular feature set within the ADV151 family (including push‑button input capability and certain status features), and the “S1” suffix identifies the revision or specification class.

Engineered for industrial use, the ADV151‑P50 S1 offers high channel density, fast response, robust isolation, flexible wiring and compatibility with redundant I/O architectures. It suits applications in process plants, manufacturing automation, utilities and other environments where many discrete inputs must be captured with reliability, speed and maintainability.

Technical Specifications

Applications

• In distributed control systems (DCS) and field I/O racks, this module acquires discrete ON/OFF signals from field devices—such as limit switches, proximity sensors, relay contacts or push‑buttons—and transfers them reliably to the control logic.

• In manufacturing automation environments, the module monitors machine status inputs, operator panel buttons, safety interlocks, conveyor run/stop signals and other digital I/O conditions.

• In process industries such as petrochemical, power generation, water/wastewater or utilities, it supports large volumes of discrete input acquisition with high reliability and robust electrical performance even in noisy environments.

• In redundant or high‑availability system architectures it can serve in dual‑channel or redundant I/O configurations, improving system uptime and fault tolerance.

• In retrofit or expansion of control systems—where many new digital input points must be integrated—the module offers a compact, standardized 24 V input interface and dense channel count, reducing cabinet space and wiring costs.

Advantages

1. High channel density – 32 discrete input channels in a single module allow for reduced cabinet space, fewer modules and simpler wiring.

2. Fast and precise response – Response time of ≤ 8 ms plus support for push‑button detection enable timely capture of digital state changes.

3. Robust electrical isolation – Withstand voltages of 2 kV AC between inputs and system plus 500 V AC between commons ensures strong noise immunity and signal integrity.

4. Standardized 24 V DC discrete input – Widely used in field instrumentation, making integration easier and reducing signal‐conditioning needs.

5. Compact size and light weight – Approx. 0.30 kg weight and modest dimensions simplify installation, maintenance and replacements.

6. Flexible wiring interface – Supports terminal, cable or connector wiring, simplifying field installation and reducing engineering effort.

7. Redundancy‑ready architecture – Designed to integrate into redundant I/O systems, enabling higher availability and reliability for critical installations.

8. Proven brand and support ecosystem – As part of a mature series and automation platform, long term serviceability and integration are supported.

Brand & Series

• Brand: Yokogawa

• Series: ADV151 Digital Input Module Series

• Category: 24 V DC isolated digital input modules, 32‑channel type

• Positioning: The ADV151 series spans a range of digital input, digital output and analog modules for field I/O in process automation and distributed control systems. The ADV151‑P50 S1 is a variant optimized for high channel density, speed and standard field discrete interface.

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