{"product_id":"abb-cma51-mmc-serial-module-advant-controller-400-interface","title":"ABB CMA51 MMC Serial Module | Advant Controller 400 Interface","description":"\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB CMA51\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance Man-Machine Communication (MMC) module designed for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAdvant Controller 400 (AC 400)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eseries. This dual-channel serial communication module provides robust, real-time data exchange between the controller and external devices such as printers, terminals, and supervisory systems. By offloading serial processing tasks from the main CPU, the CMA51 ensures system stability and uninterrupted operation in demanding industrial environments.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDual Independent Channels\u003c\/strong\u003e\u003cbr\u003eThe module supports two fully configurable serial channels. Each channel can operate independently for different tasks, enabling simultaneous communication with multiple devices or protocols.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProtocol Compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eStandard ASCII for printer and terminal connections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eModbus RTU (Master\/Slave) for integration with PLCs, drives, and sensors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEXCOM for external computer or supervisory system communication\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Speed Data Handling\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eTransmission rates range from 300 bps up to 19,200 bps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInternal buffering prevents data loss during peak traffic, ensuring reliable performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical Interfaces\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSupports RS-232C, RS-485, and RS-422 interfaces via termination units\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGalvanic isolation protects the controller from electrical interference and surges\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSystem Integration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eHot-swappable design allows module replacement without powering down the entire rack\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBuilt-in diagnostics with LED indicators for RUN, FAULT, and TX\/RX status\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eError reporting integrated with Advant Station for streamlined 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\"\u003eModule Type\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eSerial Communication Interface (MMC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eAdvant Controller 410 \/ 450 (S600 I\/O)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eChannels\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e2 Independent Asynchronous Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eSupported Protocols\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eASCII, Modbus RTU, EXCOM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eInterfaces\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eRS-232C \/ RS-485 \/ RS-422\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eBaud Rate\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e300 bps – 19,200 bps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e5V DC from backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eDiagnostics\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eRun, Error, Channel Activity LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003eIsolation\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eGalvanic isolation between controller and external devices\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\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCMA51\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis widely used for logging, local monitoring, and legacy system integration in manufacturing plants, process automation, and supervisory control systems. Its dual-channel design allows seamless interfacing with multiple devices without compromising performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the CMA51 handle both Modbus RTU and ASCII communication simultaneously?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the dual-channel architecture allows one channel to run Modbus RTU while the other handles ASCII or EXCOM protocols independently.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the module hot-swappable?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it can be replaced without powering down the AC 400 rack, provided the baseplate supports hot-swap operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum baud rate supported?\u003c\/strong\u003e\u003cbr\u003eA: The module supports up to 19,200 bps, depending on the interface type and cable length.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":44125923770467,"sku":"CMA51","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/ABBCMA51-3.jpg?v=1776646260","url":"https:\/\/precisemodule.com\/products\/abb-cma51-mmc-serial-module-advant-controller-400-interface","provider":"Precise Module Ltd.","version":"1.0","type":"link"}