{"product_id":"allen-bradley-1756sc-if8h-8-channel-4-20ma-hart-module","title":"Allen-Bradley 1756SC-IF8H 8-Channel 4-20mA HART Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1756SC-IF8H\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides a sophisticated interface for smart field devices within the ControlLogix ecosystem. This module acquires high-resolution analog signals while simultaneously extracting digital HART data, including device status, secondary variables, and diagnostics. By integrating the HART protocol directly into the I\/O layer, it eliminates the need for external HART multiplexers. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e, ensuring your critical process loops benefit from maximum precision and full manufacturer-spec reliability.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1756SC-IF8H utilizes advanced Analog-to-Digital converters to achieve laboratory-grade measurement in industrial environments.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Isolated Analog Inputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSignal Ranges\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0-20 mA, 4-20 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFull HART Protocol Overlay\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16 to 21 Bits (User Selectable)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBetter than 0.1 Percent of Range\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eData Format\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIEEE 32-bit Floating Point\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e249 Ohms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eChannel-to-Channel and Channel-to-Backplane\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.01 W (Current Mode)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Draw\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e300 mA at 5.1V \/ 70 mA at 24V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to 60 C (32 to 140 F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndividual Channel Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1756SC-IF8H isolates each channel to prevent ground loops and signal cross-talk. This architectural choice ensures that a fault or surge on one field instrument does not compromise the data integrity of the other seven channels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePredictive Maintenance via HART:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBeyond simple 4-20mA signals, this module polls the \"Digital Heartbeat\" of your transmitters. It captures secondary variables and device health bits, allowing your Logix controller to trigger maintenance alerts before a sensor failure causes a process shutdown.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDynamic Resolution Scaling:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEngineers can configure the module for up to 21-bit resolution. This provides the extreme granularity required for custody transfer, high-precision chemical dosing, and sensitive pressure monitoring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSimplified Asset Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module integrates seamlessly with FDT\/DTM software and Rockwell Automation's AssetCentre. This allows technicians to configure field instruments remotely from the control room, significantly reducing hazardous area entries.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 1756SC-IF8H require an external HART multiplexer?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No. The 1756SC-IF8H features built-in HART modems for every channel. It communicates directly with smart transmitters and passes the digital data straight to the ControlLogix backplane, simplifying your network architecture.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this module function as a standard analog input if HART is not required?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes. You can use the 1756SC-IF8H as a high-density, isolated 0-20mA or 4-20mA analog input card. You simply disable the HART polling in the software configuration to use it as a standard high-resolution module.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What terminal blocks are compatible with this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This module installs into a standard ControlLogix chassis and is compatible with Feed-through Analog Interface Modules (AIFM). It typically utilizes 3 terminals per channel to accommodate signal, return, and shield\/grounding requirements for shielded twisted pair wiring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the module handle open-circuit conditions?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The module includes onboard intelligence to detect open-circuit events within approximately 5 seconds. It immediately updates the channel status bit in the controller, allowing the PLC to execute safety interlocking or alarm routines.\u003c\/p\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":43378748260442,"sku":"1756SC-IF8H","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/36._235ac70b-6f0b-4160-9a71-c02631884401.jpg?v=1778824610","url":"https:\/\/www.spareoil.com\/products\/allen-bradley-1756sc-if8h-8-channel-4-20ma-hart-module","provider":"SpareOil Automation","version":"1.0","type":"link"}