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        Allen-Bradley 1797-IE8NF
        Allen-Bradley 1797-IE8NF
        Allen-Bradley 1797-IE8NF
        Allen-Bradley 1797-IE8NF
        Allen-Bradley 1797-IE8NF
        Allen-Bradley 1797-IE8NF
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        1797-IE8NF

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        The Allen-Bradley 1797-IE8NF is an 8-channel analog input module with an integrated noise filter, supporting 0–20 mA and 4–20 mA signals with 16-bit resolution and 0.1% accuracy at 20 °C.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 1797-IE8NF

        • Manufacturer:
          Allen-Bradley
        • Part Number:
          1797-IE8NF
        • Product Family:
          Flex I/O
        • Product Numbers:
          1797-IE8NF
        • Product Type:
          FLEX Ex I/O Module with Noise Filter
        • Product Line:
          lex I/O 1797
        • Functional Data Range:
          >15V @ 22 mA >21.5V @ 0 mA
        • Resolution:
          16 bits
        • No. of inputs:
          Eight (8) non-isolated inputs with integrated noise filter
        • IS input type:
          Class I, II, III Division 1 & 2 Groups A-G T4
        • IS module type:
          Ex ib IIB/IIC T4, AEx ib IIC T4, Class I, Division 1 Group A-D T4
        • Indicators:
          8 red fault indicators 1 green power indicator
        • Terminal Base:
          1797-TB3 or 1797-TB3S
        • Keyswitch Position:
          3
        • Inputs:
          8
        • Input Type:
          Single-ended Non-isolated
        • Module Field-side Power Consumption:
          7.5 W
        • Power Dissipation:
          5.2 W
        • Thermal Dissipation:
          17.75 BTU/hour
        • Step Response:
          4 ms
        • Weight:
          0.26 kg
        • Estimated shipping dimensions:
          9.2x7.1x4.8cm
        • Tariff Code:
          8537101190
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen, Fujian, China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Use Cases Temperature & Humidity Installation & Integration

        Features:

        • Analog Signal Conditioning with Integrated Noise Filtering for Hazardous Area Field Devices
        • Integrates Eight Individually Configurable 0-20 mA / 4-20 mA Input Channels with Intrinsic Safety Barriers
        • Functions within the FLEX Ex Platform Alongside Communication Adapters and Other Flex Ex Modules
        The 1797-IE8NF serves as the intrinsically safe analog input interface in a FLEX Ex rack, receiving filtered current signals from field devices in hazardous areas and converting them to digital data for transmission across the control network. It continuously processes eight analog input channels, each independently selectable for 0-20 mA or 4-20 mA operation, and delivers 16-bit resolution data through the Flex Ex backplane to support real-time process monitoring. Seamless integration with the FLEX Ex system is standard with the 1797-IE8NF, and its onboard noise filter suppresses electrical interference to maintain signal integrity in industrial environments. The 1797-IE8NF has made improvements in hazardous area connectivity over previous analog module designs by incorporating dual intrinsic safety ratings directly into the module.

        The 1797-IE8NF provides essential analog input functions common to the entire measurement path, and is a critical component of the process control loop, directly affecting the accuracy and reliability of the overall monitoring system. One 1797-IE8NF module occupies a single slot in the rack and provides eight channels per position, with channel configuration managed through the FLEX Ex programming environment.

        For fault diagnostics, the 1797-IE8NF employs a multi-layered indication system. In addition to standard analog signal conversion, the module performs continuous self-monitoring. The 1797-IE8NF diagnostic architecture executes fault detection using internal circuitry specified in the module specifications. Using this method, the system continually monitors the health of all eight input channels. If the module detects that a specific channel is no longer providing valid data (outside configured range or open-loop conditions), it will activate the corresponding red fault indicator and place an event in the controller fault table.

        The 1797-IE8NF Allen-Bradley FLEX Ex 8 Input Analog Module with Noise Filter may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Allen-Bradley 1797-IE8NF FLEX Ex 8 Input Analog Module with Noise Filter Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        Allen-Bradley 1797-IE8NF FLEX Ex 8 Input Analog Module with Noise Filter Specs

        General

        • Manufacturer Allen-Bradley
        • Model 1797-IE8NF
        • Condition New Original ready stock
        • Product Family 1797-IE8,1797-OE8
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Hazardous Location Monitoring: Ideal for process industries (like oil and gas or chemical plants) requiring intrinsically safe signal acquisition in Class I Division 1 and Zone 1 areas.
        • Analog Signal Processing: Used to interface with 4–20 mA or 0–20 mA current loop signals from field devices like transmitters and sensors.
        • Electrically Noisy Environments: Applied in settings where electromagnetic interference might compromise signal accuracy, as its integrated filter mitigates conducted and radiated disturbances.
        • Operating Temperature: -20 °C to +70 °C (-4 °F to +158 °F).
        • Non-Operating Temperature: -40 °C to +85 °C (-40 °F to +185 °F).
        • Relative Humidity: 5% to 95%, non-condensing.
        • Mounting: The module must be mounted on a compatible terminal base, typically the 1797-TB3 or 1797-TB3S, which is then secured to a DIN rail.
        • Keyswitch Setting: Before installation, the keyswitch on the terminal base must be rotated clockwise to position 3 to match the module type.
        • Wiring: Supports 4 (12 AWG) stranded copper wire. It features 8 single-ended, non-isolated inputs that share a common return path.
        • Network Integration: Integrates into ControlNet Ex or EtherNet/IP networks via a FLEX Ex adapter module. It supports Removal and Insertion Under Power (RIUP), allowing module replacement without shutting down the system.
        View as PDF
        Description
        The 1797-IE8NF is an analog input module that features an integrated noise filter. This module has Eight (8) analog input channels, individually configurable for 0-20 mA and 4-20 mA analog current signals. This module has an IS input type of Ex ia IIB/IIC T4 AEx ia IIC T4 Class I, II, III Division 1 Group A-G T4 and IS module type Ex ib IIB/IIC T4 AEx ib IIC T4 Class I, II, III Division 1 Groups A-D T4.

        The 1797-IE8NF has 16-bit resolution. It has accuracy of 0.1% of output signal range at 20 °C (68 °F and temperature drift of 0.05%/C of output signal range. The module’s functional data range is >15V @ 22 mA and >21.5V @ 0 mA.

        The 1797-IE8NF is designed for installation in Class I Division 1 & 2, Groups A-D hazardous areas, North American Class I Zone 1 & 2, Groups IIC, IIB, & IIA hazardous areas, and European Zones 1, 2, and 22. Additionally, all Flex Ex modules, including the 1797-IE8NF is also approved for establishing connection to Field devices installed in Class I, II, or III, Groups A-G hazardous areas, Devices within Class II or III locations, Field instruments installed in North American Class I Zone 0, 1, & 2, Groups IIC, IIB, & IIA hazardous areas and Devices located in European Zones 0, 1, 2, 21, and 22 hazardous areas. The 1797-IE8NF has an power dissipation of 5.2 W, Thermal Dissipation of 17.75 BTU/hr and Module Field-side Power Consumption of 7.5 W.

        The 1797-IE8NF is capable of indicating various fault conditions such as remote fault alarm and a local fault alarm. The Allen-Bradley 1797-IE8NF analog module with noise filter has an accuracy of 0.1% of the output signal at a specific temperature of 20 degrees Celsius, it has a configurable data format and 8 red fault indicators and 1 green power indicator. It has a power dissipation of 5.2 Watts and a thermal dissipation of 17.75 BTU per hour. When it comes to calibration, the Allen-Bradley 1797-IE8NF analog module with a noise filter is already calibrated when shipped, but depending on the application it is used for, additional periodic calibrations may be required. There are some errors that can be cleared only by calibrating the module. The tools needed for performing a calibration are a precision current source, a precision current meter, and an industrial terminal and interconnect cable.
        Revisions

        Revision Part #

        Also known as

        1797-IE8NF Ser A
        1797-IE8NF/A, Series A, Rev A
        Get Parts Quote
        Alternative Names
        17g7-IE8NF 1797-IEBNF I797-IE8NF 1797-1E8NF 1797IE8NF 17g7IE8NF 1797IEBNF I797IE8NF 17971E8NF
        Technical notes
        The 1797-IE8NF is capable of indicating various fault conditions such as remote fault alarm and a local fault alarm. The Allen-Bradley 1797-IE8NF analog module with noise filter has an accuracy of 0.1% of the output signal at a specific temperature of 20 degrees Celsius, it has a configurable data format and 8 red fault indicators and 1 green power indicator.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        Does the 1797-IE8NF come with a warranty?
        Yes, the 1797-IE8NF includes a free 1-year Apter Power warranty.
        How many analog inputs does the 1797-IE8NF module have?
        It has 8 single-ended, non-isolated analog inputs with integrated noise filters.
        What is the module’s input voltage range?
        The functional data range is >15V @ 22 mA and >21.5V @ 0 mA.
        What safety certifications does the module have for hazardous locations?
        It is Class I, II, III Division 1 & 2 Groups A-G T4, and Ex ib IIB/IIC T4 compliant.
        What indicators and terminal options are available?
        The module has 8 red fault indicators, 1 green power indicator, and uses 1797-TB3 or 1797-TB3S terminal bases.

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