{"product_id":"aam21-yokogawa-mv-thermocouple-rtd-input-module-for-centum-systems","title":"AAM21 | Yokogawa | mV\/Thermocouple\/RTD Input Module for CENTUM Systems","description":"\u003cp\u003eThe Yokogawa\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAM21\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eis a highly versatile analog input module engineered for the CENTUM CS and CENTUM VP distributed control systems. It addresses the complex challenge of temperature monitoring in industrial automation by supporting multiple sensor types within a single unit. Whether your application requires millivolt (mV) inputs, Thermocouples (Type J, K, E, T, etc.), or Resistance Temperature Detectors (RTDs), the AAM21 provides high-precision signal conversion. This flexibility simplifies inventory management and system design, allowing engineers to deploy a single module type across various temperature measurement points while maintaining high accuracy and reliability.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe AAM21 is built to deliver high-precision temperature and voltage measurement in a compact form factor.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth align=\"left\"\u003eParameter\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\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003emV \/ Thermocouple \/ RTD Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eAAM21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eCompatible Systems\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eCENTUM CS, CENTUM VP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eInput Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003emV, Thermocouple, RTD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eSupported Thermocouples\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eType J, K, E, T, B, R, S, Type N (Old JIS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eHigh Precision\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e3.0\" x 0.0\" x 7.0\" (7.6 cm x 0.0 cm x 17.8 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e0.1 kg (4.0 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eModel Code Interpretation\u003c\/h3\u003e\n\u003cp\u003eFor Yokogawa modules, the suffix code is critical as it defines the specific communication protocol support and physical interface.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAAM21\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAAM21-AXX\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eA (Base Model):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe standard AAM21 typically supports standard analog inputs for mV, TC, and RTD.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuffix Variations (e.g., AAM21B):\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-B\u003c\/strong\u003e: Often denotes support for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBRAIN protocol\u003c\/strong\u003e, allowing for digital communication with intelligent field devices.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-S1 \/ -S2\u003c\/strong\u003e: These suffixes usually indicate specific hardware revisions or regional specifications (e.g., specific compliance standards).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cem\u003eNote: Always verify the specific suffix on the module label to ensure it meets the communication protocol requirements of your field devices (Standard Analog vs. BRAIN Protocol).\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation and Wiring Guidelines\u003c\/h3\u003e\n\u003cp\u003eTo ensure accurate temperature measurement and system stability, follow these installation practices:\u003c\/p\u003e\n\u003col class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCarrier Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe AAM21 is designed to mount into specific I\/O carrier boxes (such as the AAM series carriers). Ensure the module is fully inserted into the slot and the locking mechanism is engaged to secure the connection to the backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSensor Configuration:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermocouples:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsure the correct type (J, K, E, etc.) is selected in the system engineering software to match the physical sensor.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRTDs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVerify the wiring configuration (2-wire, 3-wire, or 4-wire) in the software settings to ensure accurate resistance measurement and lead wire compensation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Connections:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse shielded twisted-pair cables to minimize electromagnetic interference (EMI). Connect the shield to the ground terminal at the cabinet end to prevent noise from affecting the low-level mV signals generated by thermocouples.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCold Junction Compensation (CJC):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor thermocouple inputs, ensure the module's internal CJC is functioning correctly or configure external CJC if required by your specific setup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What types of sensors does the AAM21 support?\u003c\/strong\u003eA: The AAM21 is highly versatile and supports\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emV inputs\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eThermocouples\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Types J, K, E, T, B, R, S, N), and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRTDs\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the AAM21 compatible with CENTUM VP?\u003c\/strong\u003eA: Yes, the AAM21 is fully compatible with both CENTUM CS and the newer CENTUM VP systems, allowing for seamless integration and hardware upgrades.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between AAM21 and AAM21B?\u003c\/strong\u003eA: The standard\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAM21\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis typically used for standard analog signals. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAM21B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eversion usually includes support for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBRAIN protocol\u003c\/strong\u003e, which allows for digital communication and diagnostics with intelligent Yokogawa field devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How accurate is the temperature measurement?\u003c\/strong\u003eA: The module is designed for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehigh precision\u003c\/strong\u003e, ensuring reliable temperature monitoring for critical process control applications.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52522881089845,"sku":"AAM21","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/AAM11_cab666f9-259c-4d56-9afd-785ada0cbf7a.jpg?v=1775037713","url":"https:\/\/www.5gplc.com\/products\/aam21-yokogawa-mv-thermocouple-rtd-input-module-for-centum-systems","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}