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1794-OE4

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Allen-Bradley 1794-OE4 is a four-channel FLEX I/O analog output module for configurable voltage or current commands with safe-state control.
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Ships by Wednesday, October 28
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Technical specifications for 1794-OE4

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1794-OE4
  • Product Family:
    Flex I/O
  • Product Type:
    FLEX I/O 4-Point Analog Output Module
  • Stock:
    1
  • Analog outputs:
    4 single-ended, nonisolated channels
  • Output ranges:
    0...20 mA, 4...20 mA, 0...10 V, or -10...+10 V
  • Resolution:
    12 bits plus sign
  • Terminal bases:
    1794-TB2, TB3, TB3S, TB3T, TB3TS, or TBN
  • External supply:
    24 V DC nominal
  • Output status:
    Current-loop wire-off indication
  • Safe state:
    Per-channel safe-state data
  • Operating temperature:
    -20...+55 °C
  • Enclosure:
    Open style
  • Estimated shipping dimensions:
    4.57 x 9.4 x 5.33 cm
  • Tariff Code:
    8537101190
  • Country of origin:
    Singapore
  • 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 Fallback Logic Loop Check Migration Product Applications

Features:

  • Four analog commands: documented current or voltage operation by channel
  • Defined fallback: controller-configured safe-state behavior
  • Lifecycle boundary: official engineering replacement requires platform redesign
1794-OE4 provides a compact four-point analog command interface for installed FLEX I/O systems.

The page focus is controlled output behavior, not simply the availability of multiple signal ranges.

Maintenance records should retain the Series, terminal base, channel scaling, fallback test, and migration decision.

Apter Power can coordinate official-document review, quotation, and sourcing support for 1794-OE4.
1794-OE4 FLEX I/O 4-Point 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.
  • Per-channel value: store the required fallback command before commissioning.
  • Mode selection: apply the documented hold, reset, or safe-value behavior.
  • Challenge test: observe the physical load during the intended controller transition.
  • Wire-off status: use the indication to locate an open current circuit.
  • Independent proof: verify the final element through field measurement or feedback.
  • Voltage channels: do not expect current-loop wire-off diagnostics on voltage operation.
  • Official status: preserve the documented End-of-Life decision and date.
  • Platform change: review I/O hardware, terminals, enclosure, and field wiring.
  • Project change: rebuild configuration, scaling, alarms, and acceptance evidence.
  • Analog final elements: command qualified valves and actuators within the load limits.
  • Drive references: provide current or voltage setpoints in installed FLEX I/O systems.
  • Legacy continuity: maintain operating equipment while an official migration is engineered.
Description
1794-OE4 is a four-channel FLEX I/O analog output module for configurable current or voltage commands. Its nonisolated outputs share the documented module architecture and use supported 1794 terminal bases for field wiring.

Controller data for 1794-OE4 defines the channel commands and safe-state response while current-loop wire-off information assists fault diagnosis. These controls are important where a valve, drive reference, or other analog load must move predictably during a controller transition.

Rockwell Automation identifies 1794-OE4 as End of Life and lists 5094-OF8 as an engineering replacement. The official designation does not make the newer platform a drop-in spare, so migration must address terminals, wiring, controller definitions, scaling, and functional validation.
Revisions

Revision Part #

Also known as

1794-OE4 Series A
1794-OE4/A, Series A
1794-OE4 Series B
1794-OE4/B, Series B
Alternative Names
Allen-Bradley FLEX I/O OE4 Rockwell 1794 OE4 Analog Output 1794OE4 four-point output module FLEX I/O voltage current output
Technical notes
Before enabling 1794-OE4 outputs, set each range and safe-state value and test the exact controller transition used by the process. A wire-off bit identifies an open current loop but does not prove actuator movement; use field measurement or device feedback to verify the final response.
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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.
Why can a 1794-OE4 wire-off indication appear while the controller command looks normal?
The output word can remain valid even when the current path is open; inspect the channel terminals, loop continuity, load, and field supply before changing scaling.
How should an unexpected output jump from 1794-OE4 be investigated?
Compare range bits, command data, safe-state values, controller mode, startup sequence, and the measured field signal to identify when the change occurs.
What must be retested after changing a 1794-OE4 channel from current to voltage?
Verify terminal wiring, range configuration, load compatibility, scaling, commanded extremes, transition behavior, and the final process response under controlled conditions.
Why is a 5094-OF8 quotation not enough to replace 1794-OE4?
Rockwell calls it an engineering replacement, so the project still needs a documented review of platform hardware, terminals, wiring, software configuration, and validation.
How can maintenance avoid losing 1794-OE4 fallback settings during exchange?
Export the approved configuration, record each channel range and safe-state behavior, photograph the terminal base, and compare the restored data before enabling outputs.
Which evidence is useful when buying 1794-OE4 near discontinuation?
Request full nameplate and Series images, condition and channel-test evidence, terminal-base scope, quantity, destination, delivery date, and the site migration requirement.