PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1794-IE4XOE2 FLEX I/O Flex I/O Analog Combination Module provides distributed analog input and output capabilities. It integrates four single-ended analog inputs alongside two single-ended analog outputs. The module operates on an external nominal supply of 24 Volts DC. The accepted operational voltage range spans from 19.2 to 31.2 Volts DC. FlexBus backplane current draw is rated at 20 milliamps. An external terminal base unit is required to provide field wiring connections.
The analog inputs utilize successive approximation conversion with a rate of 256 microseconds per channel. Input resolution is 12 bits for unipolar signals and 11 bits plus sign for bipolar signals. The two analog output channels use pulse width modulation digital-to-analog conversion. Data formats save as 16-bit left-justified two's complement values. Channels support selectable ranges including 0 to 20 milliamps, 4 to 20 milliamps, and plus-or-minus 10 Volts. The hardware mounts directly onto compatible terminal base units on a standard DIN rail.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| Product Line | Flex I/O 1794 |
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| UPC | 612598137800 |
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| Weight | 0.56 lbs (0.26 kg) |
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| Resolution | 12 bit plus sign |
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| Conversion Type | Pulse Width Modulation (PWM) |
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| Product Description | Flex IO combination analog I/O module |
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| No. of inputs | Four (4) single-ended, non-isolated inputs |
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| Current input signals | 0-20 mA / 4-20 mA |
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| Input resolution | 12 bits unipolar / 11 bits plus sign bipolar |
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| No. of outputs | Two (2) Single Ended, non-isolated |
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| Output type | 0 to 20 mA; 4 to 20 mA; +/- 10VDC; |
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| Terminal base | 1794-TB2, -TB3, -TB3S, -TB3T, -TB3TS |
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| Mounting | DIN Rail |
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| Wire Size | Determined by installed terminal base |
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| Storage Temperature | –40…85 °C (–40…185 °F) |
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| Vibration | 5g @ 10 to 500 Hz |
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| Operating Shock | 30 g |
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| Inputs | 4 Single-ended |
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| Input Current Terminal | 4-20mA |
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| Input Voltage Terminal | +/- 10V |
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| FlexBus Current | 20mA |
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| Outputs | 2 Single-ended |
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| Output Current Terminal | 4-20mA |
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| Output Voltage Terminal | +/- 10V |
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| Thermal Dissipation | 10.2 BTU/hr. @ 31.2V DC max. |
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TECHNICAL INFORMATION
Features
- Provides four single-ended, non-isolated analog input channels.
- Provides two single-ended, non-isolated analog output channels.
- Supports selectable current ranges of 0 to 20 milliamps and 4 to 20 milliamps.
- Supports voltage ranges of 0 to 10 Volts DC and plus or minus 10 Volts DC.
- Utilizes successive approximation conversion for all analog input channels.
- Employs pulse width modulation digital-to-analog conversion for output channels.
- Stores converted values in 16-bit left-justified two's complement format.
- Installs directly onto standard DIN rail terminal base units.
TECHNICAL INFORMATION
Applications
- Distributed analog process signal acquisition across automation networks.
- Current loop monitoring using standard 4 to 20 milliamp field transmitters.
- Control valve and actuator positioning via current or voltage analog outputs.
TECHNICAL INFORMATION
Connections / Interfaces
- Field wiring terminates on compatible FLEX I/O terminal base units.
- FlexBus interface connects directly through terminal base backplane pins.
TECHNICAL INFORMATION
Installation Guidelines
- Mount the module onto a compatible terminal base unit on a standard DIN rail.
- Connect an external 24 Volts DC power source within 19.2 to 31.2 Volts DC.
- Verify terminal base wiring before inserting the module into the base.
TECHNICAL INFORMATION
Configuration Guidelines
- Select current or voltage operation independently for each input and output channel.
- Process input data using left-justified 16-bit two's complement integer notation.
TECHNICAL INFORMATION
Compatibility
- Compatible with Allen-Bradley 1794-TB2 terminal base units.
- Compatible with Allen-Bradley 1794-TB3 and 1794-TB3S terminal base units.
- Compatible with Allen-Bradley 1794-TB3T and 1794-TB3TS terminal base units.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Allen-Bradley 1794-TB2 terminal base units. Compatible with Allen-Bradley 1794-TB3 and 1794-TB3S terminal base units. Compatible with Allen-Bradley 1794-TB3T and 1794-TB3TS terminal base units.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the channel count of the Allen-Bradley 1794-IE4XOE2 module?
The module contains four single-ended analog inputs and two single-ended analog outputs.
Which terminal base units are compatible with the 1794-IE4XOE2?
Compatible terminal bases include the 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, and 1794-TB3TS units.
What input and output signal ranges does this module support?
It supports current ranges of 0 to 20 milliamps and 4 to 20 milliamps. Supported voltage ranges include 0 to 10 Volts DC and plus or minus 10 Volts DC.
What is the reference price for the 1794-IE4XOE2?
Observed market pricing indicates a reference price of approximately $275 USD. This figure is an indicative market reference only and not a final quotation.
