AB 1794-OE4XT
AB 1794-OE4XT
AB 1794-OE4XT
AB 1794-OE4XT
AB 1794-OE4XT
AB 1794-OE4XT
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  • Lifecycle status

    End of Life
    Discontinued date: 2027-02-28
    Replacement category: Functional Replacement
    Functional replacement: 5094-OF8XT

1794-OE4XT

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Allen-Bradley 1794-OE4XT is a four-channel FLEX I/O XT analog output module for voltage and current control signals in extended-temperature distributed I/O installations.
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Technical specifications for 1794-OE4XT

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1794-OE4XT
  • Product Family:
    Flex I/O
  • Product Type:
    FLEX I/O XT Analog Output Module
  • Stock:
    1
  • Output Channels:
    4 single-ended, nonisolated
  • Voltage Output Ranges:
    ±10 V; 0…10 V
  • Current Output Ranges:
    0…20 mA; 4…20 mA
  • Voltage Resolution:
    12 bits plus sign; 0.156 mV/count
  • Current Resolution:
    0.320 µA/count
  • Conversion Rate:
    1.024 ms for all channels
  • Step Response:
    24 ms
  • FlexBus Current:
    15 mA at 5 V DC
  • External Supply:
    10.5…31.2 V DC; 24 V DC nominal
  • Voltage Output Load:
    3 mA maximum
  • Current Output Load:
    15…750 Ω
  • Isolation:
    50 V continuous field-to-system; no channel-to-channel isolation
  • Maximum Power Dissipation:
    4.5 W at 31.2 V DC
  • Operating Temperature:
    -20…70 °C
  • Storage Temperature:
    -40…85 °C
  • Relative Humidity:
    5…95%, noncondensing
  • Dimensions:
    4.57 × 9.4 × 5.33 cm
  • Keyswitch Position:
    4
  • External Supply Current:
    165 mA at 24 V DC
  • Weight:
    0.1 kg
  • Tariff Code:
    8538900000
  • 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 Wiring Isolation Environment Application
  • Four single-ended analog output channels support voltage or current commands.
  • Configurable ranges include ±10 V, 0…10 V, 0…20 mA, and 4…20 mA.
  • The XT design is rated for operation from -20 to 70 °C.

1794-OE4XT is an Allen-Bradley FLEX I/O XT analog output module designed for distributed industrial control systems.

The module converts controller output data into four field-level voltage or current commands and connects through a compatible FLEX I/O terminal base.

Before installation or replacement, verify the applicable hardware series, terminal base, external field supply, output range, load, wiring, and installed-system requirements.

Availability, condition, price, and shipping time for 1794-OE4XT are confirmed during quotation.

Allen-Bradley 1794-OE4XT FLEX I/O XT Analog Output Module Manuals, Datasheets, Links

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.

  • Use 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, or 1794-TBN as the terminal base for 1794-OE4XT.
  • Set the terminal-base keyswitch to position 4 and use shielded wiring for the analog signal connections.
  • Provide a 10.5…31.2 V DC external supply; the documented 1794-OE4XT supply current is 165 mA at 24 V DC.
  • Field-to-system isolation is rated at 50 V continuous.
  • The isolation barrier is tested at 850 V AC for 60 seconds.
  • The four output channels are not isolated from one another.
  • The XT operating-temperature range is -20…70 °C.
  • Relative-humidity capability is 5…95% without condensation.
  • The open-style module requires installation in a suitable enclosure.
  • FLEX I/O voltage-output control loops using 0…10 V or ±10 V commands.
  • Industrial current-output loops using 0…20 mA or 4…20 mA commands.
  • Distributed I/O installations requiring operation across the documented XT temperature range.
Description
1794-OE4XT is an Allen-Bradley FLEX I/O XT analog output module for distributed industrial control systems.

The module provides four configurable single-ended voltage or current outputs and communicates with the FLEX I/O system through a compatible terminal base while using an external 24 V DC field supply.

Before installation or replacement, confirm Series B compatibility, the terminal-base type, field-supply range, channel configuration, output load, shielding, grounding, and controller data format.
Revisions

Revision Part #

Also known as

1794-OE4XT Ser B
1794-OE4XT/B, Series B, Rev B
Alternative Names
1794-OE4XT 1794OE4XT 1794 OE4XT Allen-Bradley 1794-OE4XT Allen Bradley 1794-OE4XT FLEX I/O 1794-OE4XT
Technical notes
1794-OE4XT installation or replacement requires verification of the compatible FLEX I/O terminal base, 24V DC field supply, voltage/current output configuration, load, and shielded wiring; mismatches can prevent correct analog output operation.
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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.
How can a buyer confirm that Allen-Bradley 1794-OE4XT will fit an existing FLEX I/O station?
Check the installed FLEX I/O adapter, available module position, compatible terminal base, Series B requirements, field supply, and the controller configuration before ordering.
Can Allen-Bradley 1794-OE4XT replace a standard 1794-OE4 without an engineering review?
Do not assume a direct swap. Compare the terminal base, channel configuration, controller data format, field power, load wiring, and the XT environmental requirements with the installed design.
What normally has to be supplied separately with Allen-Bradley 1794-OE4XT?
The compatible terminal base, external 24 V DC field supply, shielded field wiring, enclosure, and any system adapter or mounting hardware must be confirmed separately.
What load must be checked before connecting a current loop to Allen-Bradley 1794-OE4XT?
Confirm that the complete loop resistance remains within the documented 15…750 Ω range, including field-device and cable resistance.
How can unintended field commands be avoided when commissioning Allen-Bradley 1794-OE4XT?
Verify each channel’s voltage/current selection, controller data format, safe-state behavior, scaling, wiring destination, and command value before reconnecting the final controlled device.
Can Allen-Bradley 1794-OE4XT be removed without disconnecting field wiring?
FLEX I/O construction leaves field wiring on the terminal base when the module is removed, but approved isolation, power-removal, and process-safety procedures still apply.
What should be checked if Allen-Bradley 1794-OE4XT does not reach the commanded output?
Check the selected output range, external field supply, loop load, terminal-base wiring, controller data, grounding, and the module status indicator.