{"product_id":"yokogawa-alr121-s53-serial-communication-module-dcs-interface","title":"Yokogawa ALR121-S53 Serial Communication Module DCS Interface","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eALR121-S53\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-reliability serial communication module designed for Yokogawa\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCENTUM VP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCENTUM CS 3000\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edistributed control systems. This module provides seamless integration for RS-422\/RS-485 serial devices, enabling efficient data exchange between the DCS and third-party subsystems. Typical connected equipment includes PLCs, analyzers, flow meters, motor control centers, and temperature controllers.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eDual independent serial ports for simultaneous communication with multiple devices\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports RS-422 (4-wire) and RS-485 (2-wire) signaling with individual port isolation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with Modbus RTU protocol in master mode for flexible device interfacing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHot-swappable capability and dual-redundancy support for uninterrupted operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFront-panel LEDs indicate Run, Error, and Send\/Receive status for rapid troubleshooting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth align=\"left\"\u003eFeature\u003c\/th\u003e\n\u003cth align=\"left\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eALR121-S53\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eSerial Ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e2 independent ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eSupported Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eRS-422 \/ RS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eConnection Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eTerminal block (pressure clamp)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eMaximum Communication Distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eUp to 1200 meters (dependent on baud rate and cable quality)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eBaud Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e1200 bps – 115,200 bps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eIndividual port isolation for electrical protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e0.5 A at 5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eField Control Unit (FCU) I\/O module slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eProtocol Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eModbus RTU (Master)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eRedundancy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eDual-redundant capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eEnvironment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eIndustrial-grade design, resistant to electrical noise and surges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial process monitoring via third-party analyzers and flow meters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eData acquisition from PLCs and motor control centers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegration of subsystem sequencers and temperature controllers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSafety control station communication using SCS Modbus slave function\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the ALR121-S53 operate with different baud rates on each port?\u003c\/strong\u003e\u003cbr\u003eA: Yes, each port can be configured independently to communicate at different speeds with different devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the module compatible with hot-swapping?\u003c\/strong\u003e\u003cbr\u003eA: The module supports hot-swapping, provided the base unit allows power-on replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I map external device registers directly to the DCS?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the module allows flexible mapping of external registers into internal DCS data points.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which safety control units are compatible with this module?\u003c\/strong\u003e\u003cbr\u003eA: Compatible with SSC60, SSC50, SSC57, SSC10 series safety control units and SNB10D safety node units.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44126901502051,"sku":"ALR121-S53","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/YOKOGAWAALR121-S53-3.jpg?v=1776655227","url":"https:\/\/precisemodule.com\/products\/yokogawa-alr121-s53-serial-communication-module-dcs-interface","provider":"Precise Module Ltd.","version":"1.0","type":"link"}