YOKOGAWA AIP171

Product Introduction

AIP171 is dedicated network coupling module for Yokogawa CENTUM DCS system, it realizes protocol conversion and data transmission between modern Vnet/IP Ethernet network and legacy coaxial V‑net bus, completes inter‑communication between new‑generation CENTUM VP and old‑generation CENTUM CS3000 system, protects existing investment during system upgrade phase.

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Description

Technical Specifications

  • Interface 1: Vnet/IP, 1000BASE‑T Gigabit Ethernet RJ45 port
  • Interface 2: V‑net coaxial BNC interface
  • Compatibility: CENTUM VP, CENTUM CS3000
  • Power supply: supplied from DCS backplane
  • Operating temperature: 0 °C ~ +50 °C
  • Humidity: 10‑90% non‑condensing
  • Structure: DCS standard plug‑in module

Functional Features

Real‑time bidirectional protocol conversion between two different DCS network architectures; transparent data exchange between new and old control stations; support system phased upgrade deployment; internal self‑diagnosis of link status; link fault alarm upload to DCS operation station; supports redundant network configuration with matched back‑plane unit.

Application Scenarios

Petrochemical plant DCS system upgrade reconstruction, refinery old‑and‑new DCS mixed‑running project, chemical plant phased renovation, power plant CENTUM system migration project.

Performance Parameters

Low transmission delay for real‑time process data; fast fault link detection; stable long‑term continuous operation of coupling link.

Material Composition

Printed circuit board with network protocol processing chip, metal front panel, coaxial BNC connector, RJ45 Ethernet port.

Structural Characteristics

Standard DCS plug‑in card module; install into DCS node unit slot; front‑side BNC and RJ45 network interfaces; rear‑side back‑plane bus connector.

Working Principle

Receives Ethernet‑format Vnet/IP data packet from new‑generation DCS station; converts protocol and physical signal into coaxial V‑net bus signal format and sends to legacy station; completes reverse conversion for data from old‑generation station to new Vnet/IP network; realizes bidirectional transparent communication of process data, alarm and command.

Installation Requirements

Insert into corresponding slot of DCS node unit; BNC coaxial cable must use dedicated V‑net cable; RJ45 Ethernet cable shall meet gigabit‑Ethernet specification; ensure reliable cabinet grounding.

Usage Notes

Do not hot‑swap module when system is running; strictly use Yokogawa‑specified V‑net coaxial cable; regularly check BNC connector connection status; do not access non‑DCS external network to Vnet/IP port of this module.

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