{"product_id":"1794-ie8-allen-bradley-high-density-analog-voltage-current-module","title":"1794-IE8 Allen-Bradley High-Density Analog Voltage Current Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003e1794-IE8\u003c\/strong\u003e is a high-density Analog Input Module from Allen-Bradley's iconic FLEX IO product line. Featuring 8 single-ended input channels, this module provides highly flexible instrumentation tracking by accepting both current (0–20 mA, 4–20 mA) and voltage (±10 VDC, 0–10 VDC) field signals. Its modular design bridges the gap between field sensors and control networks, allowing engineers to interface precisely with flow meters, temperature transmitters, and pressure transducers.\u003c\/p\u003e\n\n\u003ch2\u003eCore Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Density 8-Channel Layout:\u003c\/strong\u003e Packs 8 standalone single-ended inputs into a compact footprint to save terminal cabinet rail space.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfigurable Input Profiles:\u003c\/strong\u003e Operates seamlessly across standard industrial ranges including 4–20 mA current and ±10V voltage modes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e12-Bit Unipolar Resolution:\u003c\/strong\u003e Delivers accurate signal step conversion to translate subtle physical process variables into reliable digital values.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFLEX IO Modular Adaptability:\u003c\/strong\u003e Plugs directly onto standard 1794 terminal bases, supporting rapid hot-swappable hardware maintenance profiles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n      \u003cth style=\"border: 1px solid #dddddd; text-align: left; padding: 6px;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"border: 1px solid #dddddd; text-align: left; padding: 6px;\"\u003eData\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eModel \/ Part Number\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e1794-IE8 (Series Line: FLEX IO)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eInput Density\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e8 Single-Ended Inputs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eCurrent Signal Configurations\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e0 to 20 mA; 4 to 20 mA ranges\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eVoltage Signal Configurations\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e0 to 10 VDC; ±10 VDC ranges\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eAnalog-to-Digital Resolution\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e12 bits unipolar tracking scaling\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eAbsolute Precision Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e0.20% of full scale calibrated @ 25 °C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eExternal DC Power Requirements\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e10.0 to 31.2 VDC operating voltage window\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eFlexBus Current Draw\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e60 mA internal backplane logic current draw\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eModule Hardware Weight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e0.23 kg (0.51 lbs) light-profile card\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eOperating Ambient Limits\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e0 to 55 °C (32 to 131 °F); Storage: −40 to 85 °C\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eEngineering \u0026amp; Installation Guide\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTerminal Base Selection:\u003c\/strong\u003e Pair the 1794-IE8 card with a compatible terminal base assembly (such as the 1794-TB2, 1794-TB3, or 1794-TB3S) prior to locking the module onto the DIN rail backplane.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle-Ended Loop Grounding:\u003c\/strong\u003e Because these channels are single-ended, all inputs share a common internal electrical return line. Ensure field instruments are properly isolated to prevent ground loop discrepancies from distorting signal inputs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShielded Instrumentation Routing:\u003c\/strong\u003e Use high-quality shielded twisted-pair (STP) wiring for all analog inputs. Connect the cable shield exclusively at the terminal base ground point to block high-frequency electromagnetic interference (EMI).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Supply Integrity:\u003c\/strong\u003e Supply clean external 24 VDC power within the valid 10.0–31.2 VDC operating window. Ensure total continuous current calculations include the module's 60 mA FlexBus backplane draw.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: Can I combine both 4-20 mA current and 0-10 VDC voltage sensors on the same 1794-IE8 module?\u003c\/strong\u003e\u003cbr\u003e\nA1: Yes. The 1794-IE8 supports mixed configurations across its 8 channels. You can assign specific channels to current inputs and others to voltage inputs by wiring to the appropriate terminal connection points and matching the module's internal configuration registers.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ2: Why is proper grounding critical for the 1794-IE8 single-ended input architecture?\u003c\/strong\u003e\u003cbr\u003e\nA2: Single-ended inputs share a common return path within the module. If different field sensors are grounded at separate plant locations with varying electrical potentials, it can introduce ground currents into the signal path, causing measurement errors or data drifting.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ3: Does the 1794-IE8 card support live hot-swapping if a channel gets damaged?\u003c\/strong\u003e\u003cbr\u003e\nA3: Yes, as part of the Allen-Bradley FLEX IO family, the 1794-IE8 supports Removal and Insertion Under Power (RIUP). This allows you to swap out a faulty module without powering down the rest of the expansion rack or interrupting network communications with the main PLC.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51050311417988,"sku":"1794-IE8","price":142.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1794-IE8-1.jpg?v=1780583798","url":"https:\/\/www.etowonauto.com\/products\/1794-ie8-allen-bradley-high-density-analog-voltage-current-module","provider":"Etowon Auto","version":"1.0","type":"link"}