{"product_id":"yokogawa-amm21-centum-vp-cs-3000-series-digital-i-o-module","title":"YOKOGAWA AMM21 CENTUM VP CS 3000 Series Digital I\/O Module","description":"\u003ch2\u003eYOKOGAWA AMM21 Digital I\/O Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA AMM21\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAMM21\u003c\/strong\u003e Digital I\/O Module, operates as a dedicated hardware component for combined discrete signal acquisition and digital actuation within CENTUM VP and CENTUM CS 3000 platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eAMM21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYOKOGAWA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard CENTUM VP \/ CS 3000 card rack footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eDigital input\/output interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Configuration\u003c\/td\u003e\n\u003ctd\u003e16 Digital Inputs \/ 16 Digital Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Isolation\u003c\/td\u003e\n\u003ctd\u003eGalvanic isolation between I\/O groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation \u0026amp; DCS Field Signal Processing\u003c\/h3\u003e\n\u003cp\u003eThe module incorporates galvanic isolation across input and output circuits to insulate internal processing buses from field-side voltage transients and ground potential differences. Individual channels feature dedicated optical and magnetic decoupling stages that suppress common-mode electrical noise. When processing discrete status feeds or driving external actuators, this isolated channel structure maintains high signal fidelity, preventing ground loop currents from propagating across the CENTUM VP backplane or affecting adjacent I\/O modules.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the AMM21 module be replaced online while the control rack remains powered?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The module supports hot-swapping within active CENTUM VP and CENTUM CS 3000 I\/O nodes, allowing replacement without powering down the rack or interrupting communications on adjacent cards.\u003c\/p\u003e\n\u003cp\u003eQ: How does channel-to-channel isolation benefit field device wiring connected to the module?\u003c\/p\u003e\n\u003cp\u003eA: Galvanic isolation blocks potential ground loops and limits electrical noise transmission between field sensor loops and backplane logic networks, preserving overall signal stability.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEnsure that external power sources connected to field contacts and outputs are isolated prior to installing or removing the card. Align the rear connectors with the base rack guide tracks and push the module firmly until the retention latches engage fully with the backplane frame.\u003c\/p\u003e\n\u003cp\u003eFor signal wiring and cabinet commissioning:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eStrip individual field wire leads to 7 mm and secure them into the corresponding terminal block points.\u003c\/li\u003e\n\u003cli\u003eRoute digital input sensor lines and digital output control leads in dedicated wiring channels isolated from high-voltage AC lines.\u003c\/li\u003e\n\u003cli\u003eConnect signal cable shield drain wires directly to the cabinet main copper ground busbar to maintain noise immunity.\u003c\/li\u003e\n\u003cli\u003eVerify all terminal connection screws are torqued properly to prevent high-resistance electrical connections under continuous load.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":51178929717560,"sku":"AMM21","price":265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/AMM21.jpg?v=1759110117","url":"https:\/\/www.automodulexpert.com\/products\/yokogawa-amm21-centum-vp-cs-3000-series-digital-i-o-module","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}