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Allen-Bradley 1794-IE8 FLEX I/O Analog Input Module, 8-Channel Single-Ended Inputs (0–20 mA, ±10 V), 12-bit – Rockwell Spare Part
1794-IE8 Distributed I/O System, Analog Signal Acquisition, Flex I/O, Temperature and Pressure Transmitters, Industrial Automation

Allen‑Bradley 1794‑IE8 FLEX I/O Analog Input Module

The Allen‑Bradley 1794‑IE8 is an 8‑channel analog input module from the Bulletin 1794 FLEX™ I/O system, designed for applications requiring reliable and precise analog signal acquisition. It supports single‑ended current and voltage inputs, making it ideal for interfacing with field transmitters, analog instruments, recorders, and process loop controllers .

As part of the distributed FLEX I/O architecture, this module works with a communication adapter and terminal base to provide flexible, space‑efficient I/O placement close to field devices. 

  • Item No :

    1794-IE8

  • Order(MOQ) :

    1

  • Payment :

    EXW

  • Product Origin :

    USA

  • Shipping Port :

    Wuhan, Hubei, China

  • Lead Time :

    3-5 days

  • Weight :

    0.25kg

  • Products Description

    Allen‑Bradley 1794‑IE8 FLEX I/O Analog Input Module

    8 Single-Ended Inputs | 12-Bit Resolution | In Stock – Ready to Ship

    Model Number 1794-IE8
    Place of Origin USA
    Dimension/Weight 8.7*9.4*9.2cm /0.25kg
    Condition new and original
    Warranty 1 year
    Shipping term
    		 DHL Fedex TNT EMS UPS
    Payment TT / Western Union
    Delivery Time 3-5 days
    Service
    		 24 Hours Online Service

    1794-AENTR

    Key Features

    • 8 single‑ended analog input channels – voltage or current per channel, individually configurable 

    • Input signal ranges – 0–20 mA, 4–20 mA, ±10V DC, 0–10V DC 

    • 12‑bit resolution (unipolar mode); 11 bits plus sign (bipolar mode) 

    • Successive approximation conversion – 16‑bit, left‑justified 2’s complement data format 

    • Conversion rate – 256 µs on all channels 

    • Absolute accuracy – 0.20% full scale @ 25°C 

    • No calibration required – factory‑set accuracy ensures consistent performance 

    • RIUP (Removal and Insertion Under Power) – replace modules while the system remains operational 

    • Compact form factor – mounts on DIN rail or via panel mount 

    Technical Specifications

     
     
    Specification Details
    Catalog Number 1794‑IE8
    Product Type FLEX I/O Analog Input Module 
    Number of Inputs 8, single‑ended 
    Input Signal Ranges 0–20 mA, 4–20 mA, ±10V DC, 0–10V DC 
    Resolution 12 bits unipolar / 11 bits plus sign bipolar 
    Voltage Resolution 2.56 mV/cnt (unipolar); 5.13 mV/cnt (bipolar) 
    Current Resolution 5.13 µA/cnt 
    Absolute Accuracy 0.20% full scale @ 25°C 
    Voltage Accuracy Drift –0.00428% full scale / °C 
    Current Accuracy Drift –0.00407% full scale / °C 
    Conversion Rate 256 µs 
    Data Format 16‑bit 2’s complement, left justified 
    External DC Supply, Nominal 24V DC 
    External DC Supply Range 10.0…31.2V DC (includes 5% AC ripple) 
    FlexBus Current 60 mA 
    External DC Power Supply Current 60 mA @ 24V DC 
    Power Dissipation 3.0 W @ 31.2V DC 
    Thermal Dissipation 10.2 BTU/hr @ 31.2V DC 
    Isolation Voltage 50V continuous 
    Operating Temperature 0 to 55°C (32 to 131°F) 
    Storage Temperature –40 to 85°C (–40 to 185°F) 
    Vibration (Operating) 5g @ 10 to 500 Hz 
    Dimensions (W × H × D) 94 × 45.7 × 53.3 mm (3.7 × 2.1 × 31.8 in) 
    Weight approx. 0.11 kg (0.25 lb) 
    Mounting DIN Rail or panel mount 

    Terminal Base Compatibility

    The 1794‑IE8 module must be installed on a compatible terminal base unit, which provides the wiring connection points. Compatible terminal bases include :

    • 1794‑TB2 – screw clamp

    • 1794‑TB3 – screw clamp

    • 1794‑TB3S – spring clamp

    • 1794‑TB3T – screw clamp, high temperature

    • 1794‑TB3TS – spring clamp, high temperature

    Important: Only connect one current signal or one voltage signal per channel. Do not connect both current and voltage on the same channel .

    Wiring Diagram Reference

    The table below shows the terminal assignments for the 1794‑IE8 module when used with 1794‑TB2 or 1794‑TB3 terminal bases :

     
     
    Channel Signal Type Label Signal Terminal 24V Common Terminal
    0 Current I A‑0 B‑17
      Voltage V A‑1 B‑18
    1 Current I A‑2 B‑19
      Voltage V A‑3 B‑20
    2 Current I A‑4 B‑21
      Voltage V A‑5 B‑22
    3 Current I A‑6 B‑23
      Voltage V A‑7 B‑24
    4 Current I A‑8 B‑25
      Voltage V A‑9 B‑26
    5 Current I A‑10 B‑27
      Voltage V A‑11 B‑28
    6 Current I A‑12 B‑29
      Voltage V A‑13 B‑30
    7 Current I A‑14 B‑31
      Voltage V A‑15 B‑32

    • Connect +24V DC to terminals C‑34…51 

    • Terminals B‑16…33 are internally connected in the terminal base unit 

    Applications

    The 1794‑IE8 is suited for industrial applications requiring analog input monitoring, including:

     

    • Process control – monitoring pressure, temperature, flow transmitters

    • Machine automation – reading analog sensors and instruments

    • Distributed I/O systems – placing I/O close to field devices

    • Factory automation – interfacing with recorders, indicators, and loop controllers

Hot Tags :

AB 1794-IE8

Allen-Bradley 1794-IE8

Rockwell 1794-IE8

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Subject : Allen‑Bradley 1794‑IE8 FLEX I/O Analog Input Module

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