Product Introduction – ADV851-P50

The ADV851-P50 is a high-performance digital I/O module in the Yokogawa ADV/FIO family. It combines 16 digital inputs and 16 digital outputs in a single module, designed for 24 V DC industrial systems. The suffix “P50” indicates that this variant provides pulse-width and time-proportional output capability in the output section, allowing not only standard on/off switching but also timed duty-cycle outputs (for example controlling actuators or valves by percent time). This makes it well suited for advanced control loops that require both discrete status inputs and timed digital outputs in one compact unit.

The module is optimized for modular I/O racks or distributed I/O systems, offering strong integration, reduced wiring complexity, and cost-effective installation in control panels, automation cabinets, and field racks.

Technical Specifications

Applications

• Combined status monitoring and timed command control in process plants: the input section monitors field signals (switches, sensors, alarms) while the output section drives actuators, solenoids or lamps with standard switching or duty-cycle control.

• Batch or sequence control systems where discrete outputs require timed ON/OFF durations (e.g., dosing valves, timed conveyors) alongside input checks.

• Water/wastewater treatment automation managing both pump/start-stop inputs and timed valve or blower output sequences.

• Discrete manufacturing/packaging lines, where a single I/O module handles both sensor status and timed machine commands, simplifying panel design.

• Remote I/O racks, installed near the field to reduce wiring runs, offering both inputs and outputs in one card.

• Alarm and interlock systems, where digital inputs detect fault or alarm conditions and digital outputs drive warning devices or isolation valves; the timing capability adds flexibility for blinking alarms or timed shutdown sequences.

Advantages

• Two-function module (inputs + outputs) reduces required module count and simplifies the wiring layout.

• Timing capability on outputs (pulse-width/time-proportional) adds advanced control without needing separate timing relay modules.

• Compact size and relatively light weight (approx. 0.30 kg) make it easy to install in dense control racks.

• Strong isolation design, safeguarding system reliability in industrial environments with electrical noise.

• Modular architecture enables easy expansion, retrofit, and maintenance—especially beneficial when replacing older cards.

• Cost-effective integration: A combined I/O module lowers spare-part inventory, panel space and installation labour compared to separate input and output modules.

• Reduced wiring complexity: By combining functions in one card, fewer inter-module links and fewer terminations are needed.

• Future-proof control: The built-in timing output capability supports modern automation demands without additional hardware.

Brand & Series Information

• Brand: Yokogawa

• Series: ADV (Digital I/O Modules) / FIO family in Yokogawa’s automation ecosystem

• Model: ADV851-P50 — Mixed digital I/O with timing output capability

This series offers variants with varying channel counts, functions (input only, output only, mixed), wiring/interface types, and timing capability options.

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Recommended Popular Models – Same Brand

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