YOKOGAWA ADV551‑P50

Product Name

32‑Channel Isolated Digital Output Module

Product Introduction

ADV551‑P50 is digital output module for Yokogawa CENTUM CS3000 / CENTUM VP DCS system, used to output discrete switch control signal to field actuators, suffix P50 represents push‑button configuration function, no local status indicator, basic type without explosion‑proof treatment.

Category:
Description

Technical Specifications

  • Channel quantity: 32 digital output channels
  • Output type: transistor sink output
  • Load per channel: maximum 50 mA
  • External field power: 20.4 V DC ~ 26.4 V DC
  • Withstand voltage: 2 kV AC between channel and system
  • Connection mode: pressure‑clamp terminal or dedicated AKB331 cable
  • Weight: 0.3 kg
  • Operating temperature: 0 °C ~ +50 °C
  • Humidity: 10‑90% non‑condensing

Functional Features

Supports status output, pulse output, time‑proportional output mode; channel‑to‑system electrical isolation; built‑in over‑current and short‑circuit protection; supports module hot‑swap; supports redundant configuration; internal comprehensive self‑diagnosis function; force output function for debugging purpose.

Application Scenarios

Petrochemical plant valve and solenoid control, power plant auxiliary equipment discrete output, chemical process interlock control, large‑scale DCS system high‑density switch output cabinet.

Performance Parameters

Fast output response speed; low ground‑loop interference caused by isolation design; stable long‑term continuous operation.

Material Composition

Industrial‑grade plastic module housing, printed circuit board with transistor output circuit, metal pressure‑clamp terminal components.

Structural Characteristics

Standard DCS plug‑in module structure; install onto ESB bus node unit; rear‑side backplane bus connector; front‑side pressure‑clamp field wiring terminals.

Working Principle

Receives digital control instruction from DCS field control station through ESB backplane bus; drives transistor switch circuit of corresponding channel; outputs 24 V DC switch signal to control field solenoid valves, relays and alarm devices; self‑diagnosis circuit monitors channel fault status and uploads fault information to DCS host.

Installation Requirements

Insert into matched ANB10S / ANB11S node unit slot; complete anti‑static protection before contact module; field external power supply must conform to 20.4‑26.4 V DC range; wiring shall strictly separate signal cable and power cable.

Usage Notes

Support hot‑swap only under permitted system configuration; do not exceed single‑channel maximum load current; check terminal screw torque after wiring; do not use in explosive area without explosion‑proof configuration variant.

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