Yokogawa ADV551-DO32 Digital Output Module

Overview

The ADV551‑DO32 is a 32-channel digital output module designed for Yokogawa FIO (Field I/O) systems. It delivers reliable 24 V DC transistor signals with fast switching performance and high immunity to electrical noise. Each channel features full isolation, ensuring safe and stable operation in electrically harsh environments such as petrochemical plants, power generation facilities, and water treatment systems.

Technical Specifications

Output Features

• Number of channels: 32 digital outputs

• Output type: DC transistor

• Rated voltage: 24 V DC

• Voltage range: 18–26.4 V DC

• Rated load current: 0.1–0.5 A per channel (depending on terminal assembly)

• Leakage current (OFF state): Minimal, typical of transistor outputs

• Switching speed: High-speed, suitable for rapid control cycles

Electrical & Protection

• Channel-to-channel and channel-to-system isolation

• Overcurrent protection via external fuse or terminal assembly

• Short-circuit tolerance varies by module type

• Robust EMI-resistant design for industrial environments

Power Requirements

• Supplied via FIO base module

• Low overall power consumption, optimized for dense I/O configurations

Physical Dimensions

• Module size: 130 × 107.5 × 32.8 mm

• Weight: 0.3 kg

• Mounting: Plug-in installation on FIO baseplate

Environmental Ratings

• Operating temperature: −20 °C to +55 °C

• Storage temperature: −20 °C to +70 °C

• Relative humidity: 5–95% RH (non-condensing)

• Designed to withstand harsh industrial conditions

Applications

• Solenoid valve actuation

• Relay and contactor switching

• Indicator lamp control

• ON/OFF process automation

• High-density digital output integration in DCS systems

FAQ

Q: Can this module operate in high-noise environments?
A: Yes, the ADV551‑DO32 features channel-to-channel isolation and EMI-resistant design, suitable for noisy industrial environments.

Q: What is the maximum load per channel?
A: Each channel can handle 0.1–0.5 A depending on the terminal assembly used.

Q: Are all 32 outputs independently isolated?
A: Yes, each output channel is fully isolated to prevent interference and ensure operational safety.

Q: How does this module compare to ADV551‑DO16?
A: The ADV551‑DO32 doubles the channel count while maintaining similar electrical performance and fast switching capability.