Description

YOKOGAWA ALR121‑S00‑RS485 Communication Module

Product Overview

ALR121‑S00 is Yokogawa DCS serial communication module. It provides RS485 serial interface for DCS rack, implementing bidirectional data exchange between the DCS controller and third‑party serial devices. It supports multi‑point serial communication, transmits process data and diagnostic information for distributed process‑control systems.

Technical Specifications

• Brand: YOKOGAWA
• Model: ALR121‑S00
• Warranty: One Year
• Condition: 100% New & Original
• Communication: RS485 serial, DCS backplane bus
• Function: DCS serial communication interface module

Application Scenarios

• Petrochemical DCS system: Serial data connection to third‑party field instruments.
• Chemical production unit: DCS serial‑communication spare‑part replacement.
• Water‑treatment automation site: Multi‑point serial‑device access for control racks.
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