Yokogawa | ADV551-P50/D5A00 24V DC 32-Channel Digital Output Module

High-Density Discrete Output Control for Process Automation

In continuous process industries such as chemical manufacturing, power generation, and oil refining, maintaining accurate discrete signal transmission from control processors to field equipment is vital. The Yokogawa ADV551-P50/D5A00 Digital Output Module functions as a primary output interface within the Yokogawa CENTUM VP distributed control system (DCS) framework. Operating on a 24V DC supply voltage, this 32-channel transistor module transforms internal system logic commands into physical field switching actions for solenoid valves, interlock relays, and status lamps.

Optical Isolation and Electrical Protection

Process control enclosures are frequently subject to electrical noise and transient voltage spikes. To safeguard system backplanes and control processors, the ADV551-P50/D5A00 module incorporates optocoupler isolation between its internal logic circuits and field-side wiring connections. This optical barrier prevents external noise from interfering with internal bus communications, maintaining high processing stability across all 32 output channels.

Status Monitoring and System Architecture

Engineered for continuous 24/7 industrial service, the ADV551-P50/D5A00 features dedicated LED status indicators on the module front face. These visual indicators allow plant technicians to quickly inspect power status, module run/diagnostic states, and individual channel output activity without external test gear. Weighing approximately 0.20 kg, the module installs directly into dedicated I/O slots of Yokogawa Field Control Units (FCU) and remote node units, supporting flexible cabinet integration.

Applications

• Distributed Control Systems (DCS): 32-channel digital signal output routing in Yokogawa CENTUM VP process networks.

• Oil & Gas Processing: On/off control signal switching for solenoid valves, motor starters, and field indicators.

• Chemical & Petrochemical Operations: Discrete signal output processing for automated batching and safety interlock loops.

• Power Generation Facilities: Discrete switching for breaker control circuits, auxiliary skids, and alarm panels.

• Water & Wastewater Treatment: Actuation signal output for automated valves and dosing pump control relays.

Technical Specifications

• Manufacturer: Yokogawa

• Product Model: ADV551-P50/D5A00

• Product Type: Digital Output Module (32-Channel)

• Rated Output Voltage: 24 V DC (+10% / -10%)

• Number of Channels: 32 channels, non-isolated between channels (common ground)

• Output Type: Transistor output / current sink

• Isolation Method: Optical isolation (system-to-field)

• Module Net Weight: Approx. 0.20 kg

• Status Display: LED indicators for power, diagnostic status, and output channel states

• Compatible Control System: Yokogawa CENTUM VP / ProSafe-RS

FAQ

Q1: What is the primary function of the Yokogawa ADV551-P50/D5A00 module? A: The ADV551-P50/D5A00 is a 32-channel transistor output module that routes 24V DC discrete control signals from Yokogawa control processors to field devices like relays, valves, and status lamps.

Q2: What is the net weight of the ADV551-P50 module? A: According to official Yokogawa general specifications, the net weight of the ADV551 module is approximately 0.20 kg.

Q3: Does the ADV551-P50 module feature electrical isolation? A: Yes. The module features optical isolation between the internal system logic bus and the 24V DC field wiring channels to protect system electronics from field noise.

Q4: How can I confirm pricing and availability for this model? A: Simply submit your required model code and quantity through our website inquiry form to receive a prompt quotation.

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