{"product_id":"1771-ifms-ab-plc-5-fast-millivolt-analog-module-8-channel-0-50mv","title":"1771-IFMS AB PLC 5 Fast Millivolt Analog Module 8-Channel 0-50mV","description":"\u003ch3\u003e\u003cstrong\u003ePrecision Signal Processing\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003e1771-IFMS\u003c\/strong\u003e\u003c\/span\u003e stands as a specialized analog solution for the \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003ePLC 5\u003c\/strong\u003e\u003c\/span\u003e platform, specifically engineered for high-accuracy low-level voltage acquisition. This module provides eight differential input channels designed to interface with millivolt-level sensors in volatile environments. By integrating \u003cstrong\u003eintrinsically safe circuitry\u003c\/strong\u003e, the \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003e1771-IFMS\u003c\/strong\u003e\u003c\/span\u003e eliminates the need for external safety barriers in many low-voltage applications. Its monotonic A\/D converter ensures seamless data transition without missing codes, maintaining high linearity across the entire 0-50 mV measurement spectrum.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Allen-Bradley \/ Rockwell Automation\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003e1771-IFMS\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003ePLC 5\u003c\/strong\u003e\u003c\/span\u003e Analog I\/O\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInput Type:\u003c\/strong\u003e 8 Differential Millivolt Inputs\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMeasurement Range:\u003c\/strong\u003e 0 to 50 mV DC\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA\/D Resolution:\u003c\/strong\u003e 12-bit Binary (1 part in 4096)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e 0.1% of range @ 25 C\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLinearity and Repeatability:\u003c\/strong\u003e +\/- 1 LSB\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eScan Rate:\u003c\/strong\u003e 14.5 ms for all 8 channels (Fast Mode)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e 1 Megaohm\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCommon Mode Rejection:\u003c\/strong\u003e 100 dB @ 60 Hz\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBackplane Current:\u003c\/strong\u003e 750 mA @ 5V DC\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWiring Arm:\u003c\/strong\u003e 1771-WG\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0 to 60 C (32 to 140 F)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEnvironmental Resistance:\u003c\/strong\u003e Conformal Coated for harsh atmosphere protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003e1771-IFMS\u003c\/strong\u003e\u003c\/span\u003e is a critical legacy component for industries requiring high-speed millivolt precision, such as specialized metallurgical or chemical processing. Unlike standard analog modules, the \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003e1771-IFMS\u003c\/strong\u003e\u003c\/span\u003e is optimized for fast-response environments where millisecond-level data updates are non-negotiable. The \u003cstrong\u003eConformal Coating\u003c\/strong\u003e provides an extra layer of defense against corrosive gases, a common requirement in the aging \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003ePLC 5\u003c\/strong\u003e\u003c\/span\u003e installations still running today.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCompatible Equipment and Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eThermocouple Integration:\u003c\/strong\u003e Direct millivolt interface for high-temperature furnace monitoring.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStrain Gauge Transducers:\u003c\/strong\u003e Measuring mechanical stress or weight in hazardous zones.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLaboratory Analyzers:\u003c\/strong\u003e Connecting to low-level scientific instrumentation outputs.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eChassis Compatibility:\u003c\/strong\u003e Installs in any 1771 Universal I\/O chassis managed by \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003ePLC 5\u003c\/strong\u003e\u003c\/span\u003e processors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eDiagnostic and Protection Capabilities\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOvervoltage Safeguard:\u003c\/strong\u003e Input protection up to 32V to prevent hardware failure during surges.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSafe-Side Voltage Limit:\u003c\/strong\u003e Non-intrinsically safe connections are rated to withstand up to 250V RMS.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eData Integrity:\u003c\/strong\u003e Configurable data formats (+\/- 32,767 Binary or +\/- 9999 BCD) for simplified PLC math.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePhysical Diagnostics:\u003c\/strong\u003e Status verification via backplane communication health and processor-level I\/O bits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eShipping and Warranty\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWarranty Policy:\u003c\/strong\u003e Professional \u003cstrong\u003e12-month replacement guarantee\u003c\/strong\u003e on all units.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eExpress Carriers:\u003c\/strong\u003e Priority shipping via \u003cstrong\u003eFedEx, UPS, and DHL\u003c\/strong\u003e.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOrder Processing:\u003c\/strong\u003e Fast dispatch within \u003cstrong\u003e24-48 hours\u003c\/strong\u003e from our global hub.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e One (1) \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003e1771-IFMS\u003c\/strong\u003e\u003c\/span\u003e module with technical documentation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eAdvanced Engineering FAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion: Does the \u003cspan style=\"color: #e74c3c;\"\u003e1771-IFMS\u003c\/span\u003e support Hot-Swapping (RIUP)?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: No. You must remove power from the \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003ePLC 5\u003c\/strong\u003e\u003c\/span\u003e chassis before installation or removal to prevent electrical damage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuestion: Why is the input impedance rated at 1 Megaohm?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: This high impedance ensures minimal circuit loading, which is vital for maintaining the accuracy of tiny millivolt signals.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuestion: What is the benefit of the Conformal Coating on this specific module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: It protects internal components from humidity, dust, and chemical contaminants, significantly extending the lifecycle in industrial plants.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuestion: Can I use the \u003cspan style=\"color: #e74c3c;\"\u003e1771-IFMS\u003c\/span\u003e for standard 4-20mA signals?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: No. This module is strictly designed for 0-50mV ranges; using it for 4-20mA will exceed the input voltage protection limits.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuestion: What happens if the common-mode voltage exceeds 10V DC?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: Accuracy will degrade rapidly, and you risk triggering the 32V overvoltage protection circuit or damaging the A\/D converter.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eProcurement and Selection Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003eConfirm your sensor output falls within the 0-50mV window before selecting the \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003e1771-IFMS\u003c\/strong\u003e\u003c\/span\u003e.\u003c\/li\u003e\n    \u003cli\u003eAlways utilize the \u003cstrong\u003e1771-WG\u003c\/strong\u003e wiring arm to ensure proper termination and safety spacing.\u003c\/li\u003e\n    \u003cli\u003eThis module is ideal for maintaining existing \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003ePLC 5\u003c\/strong\u003e\u003c\/span\u003e systems where upgrading the entire rack is cost-prohibitive.\u003c\/li\u003e\n    \u003cli\u003eEnsure the field side complies with T6 North American temperature codes for hazardous location installations.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45014022193334,"sku":"1771-IFMS","price":161.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1771-IFMS.jpg?v=1777358367","url":"https:\/\/www.plcsparehub.com\/products\/1771-ifms-ab-plc-5-fast-millivolt-analog-module-8-channel-0-50mv","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}