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      1794-OF4I

      Isolated Analog Output Module
      In Stock
      Ships by Saturday, October 17
      Fast Shipping Available

      Product Describe：

      Allen-Bradley 1794-OF4I is a FLEX I/O isolated analog output module with four configurable current or voltage outputs, 15-bit-plus-sign resolution and factory calibration.

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      Technical specifications Information Technical notes FAQ

      Technical specifications for 1794-OF4I

      Technical specifications for 1794-OF4I

      • Manufacturer:
        Allen-Bradley
      • Product Category:
        PLC Systems
      • Spare Part Number:
        1794OF4I
      • Estimated shipping dimensions:
        9.3x5x5.4cm
      • Weight:
        0.14 kg
      • Tariff Code:
        8537101190
      • Counliy of origin:
        USA
      • Number of outputs:
        4 isolated
      • Current ranges:
        4 to 20 mA or 0 to 20 mA
      • Voltage ranges:
        +/-10 V, 0 to 10 V, +/-5 V or 0 to 5 V
      • Resolution:
        15 bits plus sign
      • Update rate:
        2.5 or 5.0 ms
      • External supply:
        24 V DC; 19.2 to 31.2 V DC
      • External supply current:
        210 mA at 24 V DC
      • Keyswitch:
        Position 4
      • Supported bases:
        1794-TB2/TB3/TB3S/TB3T/TB3TS/TBN
      • Operating temperature:
        -20 to +55 degrees C
      • Calibration:
        Factory calibrated; recalibrate when necessary
      View as PDF Ask for Quote

      Information

      Information

      Overview Manuals Common Applications Product Precautions
      Allen-Bradley 1794-OF4I delivers isolated field-level analog commands from a FLEX I/O station to four independently configured output channels.
      • Four isolated analog outputs
      • Current and voltage output ranges
      • 15-bit-plus-sign resolution
      • 2.5 or 5.0 ms update rate

      Mounted on a supported 1794 terminal base with its keyswitch at position 4, each channel is assigned one signal mode and uses shielded field wiring with a separate 24 V DC supply.

      Important Notice: Never connect current and voltage signals to the same channel. Confirm the terminal-base model, field supply, data format and shield arrangement before energizing the module.

      Allen-Bradley 1794-OF4I Manuals & Downloads
      Allen-Bradley 1794-OF4I Technical Reference (PDF)Allen-Bradley 1794-OF4I Installation & Commissioning Guide (PDF)

      The technical reference organizes exact specifications and configuration boundaries. The installation guide covers controlled fitting, interface checks, startup and acceptance.

      Isolated current-loop command
      Generates configured 0 to 20 mA or 4 to 20 mA commands for field devices.
      Voltage setpoint output
      Provides selected bipolar or unipolar voltage signals within the published ranges.
      Four-channel actuator control
      Drives independently mapped analog channels from one FLEX I/O station.
      Analog output renewal
      Restores the exact module and terminal-base wiring while retaining channel scaling.
      Allen-Bradley 1794-OF4I installation checks: preserve the exact model identity, documented system arrangement and controlled acceptance evidence.
      1
      Confirm the complete 1794-OF4I marking and terminal-base model.
      2
      Place every connected actuator or loop in its approved maintenance state.
      3
      Remove backplane and field power before module or wiring work.
      4
      Set the terminal-base keyswitch to position 4 and seat the module evenly.
      5
      Connect only one current or one voltage signal to each channel.
      6
      Use shielded signal cable and bond the shield as specified for the installed base.
      7
      Keep analog and digital module power supplies separated where noise control requires it.
      8
      Restore power, verify the status indicator and prove every configured output safely.

      Technical notes

      Technical notes

      Connect only one current or one voltage signal per channel. Verify the terminal-base type, keyswitch position 4, field supply, channel configuration and shield termination before energizing 1794-OF4I.

      FAQS

      • What is Allen-Bradley 1794-OF4I?
        It is a four-channel isolated analog output module for the FLEX I/O platform.
      • Which output ranges does Allen-Bradley 1794-OF4I support?
        It supports 4 to 20 mA, 0 to 20 mA, +/-10 V, 0 to 10 V, +/-5 V and 0 to 5 V configurations.
      • What is the resolution of Allen-Bradley 1794-OF4I?
        The manufacturer specifies 15 bits plus sign, 0.656 microamp per count and 0.320 millivolt per count.
      • Which terminal bases support Allen-Bradley 1794-OF4I?
        The installation instructions list 1794-TB2, TB3, TB3S, TB3T, TB3TS and TBN.
      • Which keyswitch position is required for Allen-Bradley 1794-OF4I?
        The required position is 4.
      • Can current and voltage wiring share one Allen-Bradley 1794-OF4I channel?
        No. The instructions require one current or one voltage signal per channel, not both.
      • What external supply does Allen-Bradley 1794-OF4I require?
        The nominal supply is 24 V DC with a published operating range of 19.2 to 31.2 V DC.
      • How is Allen-Bradley 1794-OF4I commissioned?
        Verify base identity, wiring, supply, channel data format and status indication, then prove each output against the controlled field device.
      Trusted by 5,000+ plants worldwide | Backed by our vast inventory of top-tier control parts, modules and cards, fast shipments are dispatched to cover your urgent needs. ABOUT US >>
      Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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