{"product_id":"rh927ah-foxboro-8-channel-4-20ma-isolated-input-module","title":"RH927AH Foxboro 8-Channel 4-20mA Isolated Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFoxboro FBM214B RH927AH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-performance, 8-channel analog input interface for the Foxboro Evo™ and I\/A Series Distributed Control Systems (DCS). This module accepts standard 4–20 mA signals while simultaneously processing HART® digital data from smart field instruments. It serves as a HART host, allowing the DCS to perform remote configuration, calibration, and real-time health monitoring of field devices. We supply this module as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% brand new and original\u003c\/strong\u003e, ensuring immediate integration into mission-critical control loops in oil and gas, power generation, and chemical processing facilities.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\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\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFBM214B RH927AH\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHART Communication Input Module\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eChannel Count\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Individually Isolated Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Signal\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4–20 mA Analog + HART Digital\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSystem Support\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFoxboro Evo \/ I\/A Series DCS\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 VDC (Redundant Supply Supported)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8.5 W\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 deg C to +60 deg C\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-bus isolation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.2 cm x 12.4 cm x 12.6 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.3 kg\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 RH927AH provides dedicated isolation for each of its 8 channels. This architecture prevents ground loops and ensures that a single field device failure or electrical fault does not propagate to adjacent channels or the system backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDual-Signal Processing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis module overlays digital HART communication onto the traditional 4–20 mA analog signal. It enables maintenance teams to extract secondary variables and diagnostic data without disrupting the primary process control loop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced Fail-Safe Logic:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEngineers can configure each channel to either \"Hold Last Value\" or \"Return to Preset Value\" upon communication loss. This flexibility allows for customized safety responses based on the specific requirements of the industrial process.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSmart Device Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe RH927AH supports universal and device-specific HART commands. This allows the centralized DCS to perform asset management tasks, such as tracking valve wear or transmitter calibration drift, significantly reducing manual field inspections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the FBM214B RH927AH support HART burst mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, this module supports universal, common practice, and device-specific HART commands, but it does not support HART burst mode.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this module compatible with my existing I\/A Series rack?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, the FBM214B RH927AH maintains full compatibility with both legacy Foxboro I\/A Series and the modern Foxboro Evo™ hardware platforms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the module handle power failure?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The RH927AH supports a redundant 24 VDC power supply. If the primary power source fails, the module seamlessly switches to the redundant feed to maintain uninterrupted operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are these units refurbished or new?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: We provide the RH927AH as a 100% brand new, original factory unit. Each module undergoes strict quality assurance to meet original manufacturer performance specifications.\u003c\/p\u003e","brand":"Foxboro","offers":[{"title":"Default Title","offer_id":43841826848867,"sku":"RH927AH","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/2.4_4cf5dfb9-a7ac-48e6-ab11-acb68c45eb86.jpg?v=1763451273","url":"https:\/\/www.autocontrolglobal.com\/products\/rh927ah-foxboro-8-channel-4-20ma-isolated-input-module","provider":"AutoControl Global","version":"1.0","type":"link"}