{"product_id":"emerson-pac8000-8121-di-dc-05-16-channel-digital-input-module","title":"Emerson PAC8000 8121-DI-DC-05 | 16-Channel Digital Input Module","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8121-DI-DC-05\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a PAC8000 series digital input module from Emerson, engineered to monitor field devices with high reliability. It provides sixteen independent DC input channels for switches, sensors, and contact closures, enabling precise signal acquisition for remote I\/O applications.\u003c\/p\u003e\n\u003cp\u003eDesigned for deployment in hazardous or remote industrial environments, the module combines robust isolation, fast response, and built-in diagnostics to ensure continuous and safe operation under challenging conditions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCore Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eModel:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8121-DI-DC-05\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eModule Type: Digital Input (DI)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChannels: 16 independent inputs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInput Signal: DC voltage, 0–30 V range\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNominal Input Voltage: 24 VDC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInput Current: ~2.5 mA per channel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA\/D Response Time: Millisecond-level switching typical\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIsolation: Channel-to-Railbus 100 VAC; channels share common reference\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDiagnostic Features: Open-circuit and short detection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eElectrical \u0026amp; Power Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSystem Supply Current: approx. 150 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eField Supply Current: approx. 300 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eField Power: 24 VDC shared across channels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLoad Compatibility: Contact closures, proximity sensors, switches\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEnvironmental \u0026amp; Compliance Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eCertified for hazardous area installation (non-incendive circuits)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for Zone 2 \/ Class I Division 2 locations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInternational Approvals: ATEX, IECEx, FM, UKEX\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for durability in high vibration, temperature variation, and electrical noise\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFunctional Advantages\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSixteen-channel design allows simultaneous monitoring of multiple devices\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFast signal response ensures accurate status reporting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBuilt-in diagnostics simplify fault detection and maintenance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with PAC8000 I\/O architecture for modular expansion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplication Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eRemote process monitoring in oil \u0026amp; gas facilities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChemical plant instrumentation panels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower generation and utility control rooms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSkid-mounted or distributed automation systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSafety and interlock monitoring in hazardous locations\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 this module handle high-speed digital inputs?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the module is designed for millisecond-level response, suitable for most process control switches and sensors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are input channels isolated from each other?\u003c\/strong\u003e\u003cbr\u003eA: Channels share a common reference; however, channel-to-Railbus isolation of 100 VAC ensures safe interfacing with the control system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can it be used with both contact closures and voltage signals?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it accepts standard 24 VDC signals and switch contact inputs within the 0–30 VDC range.\u003c\/p\u003e","brand":"Emerson","offers":[{"title":"Default Title","offer_id":43064937939034,"sku":"8121-DI-DC-05","price":178.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/8103-AI-TX-04.jpg?v=1773803509","url":"https:\/\/www.plcmasters.com\/fa\/products\/emerson-pac8000-8121-di-dc-05-16-channel-digital-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}