1794-OE4 | Allen-Bradley Flex I/O Analog Output Module 12 Bit 4 Single Outputs
1794-OE4 | Allen-Bradley Flex I/O Analog Output Module 12 Bit 4 Single Outputs
1794-OE4 | Allen-Bradley Flex I/O Analog Output Module 12 Bit 4 Single Outputs
1794-OE4 | Allen-Bradley Flex I/O Analog Output Module 12 Bit 4 Single Outputs
1794-OE4 | Allen-Bradley Flex I/O Analog Output Module 12 Bit 4 Single Outputs
1794-OE4 | Allen-Bradley Flex I/O Analog Output Module 12 Bit 4 Single Outputs
    1794-OE4 | Allen-Bradley Flex I/O Analog Output Module 12 Bit 4 Single Outputs
    1794-OE4 | Allen-Bradley Flex I/O Analog Output Module 12 Bit 4 Single Outputs
1794-OE4 | Allen-Bradley Flex I/O Analog Output Module 12 Bit 4 Single Outputs
1794-OE4 | Allen-Bradley Flex I/O Analog Output Module 12 Bit 4 Single Outputs

1794-OE4 | Allen-Bradley Flex I/O Analog Output Module 12 Bit 4 Single Outputs

Part #: 1794-OE4 Manufactured by: Allen-Bradley
$409.00
$409.00
7 in Stock
Condition: New-Surplus Original Box
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Product Overview
The Allen-Bradley 1794-OE4 Flex I/O Output Analog Module has 4 Single-ended Outputs, a 12 bits Resolution, and a Left Just...  Read more
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Product Description P/N: 1794-OE4

Description / Specifications

Description 

The Allen-Bradley 1794-OE4 is a Flex I/O analog output module. This module has Four (4) analog output channels, providing analog output signals such as 0 to 20 mA; 4 to 20 mA; +/- 10VDC; 0 to 10 VDC. It has a resolution of 12-bit and compatible for installation with terminal bases such as 1794-TB2, -TB3, -TB3S, -TB3T, -TB3TS, and -TBN.

 

Technical Specifications 

 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1794-OE4
Wire Size Determined by installed terminal base
External DC supply, nom 24V DC
Indicators 1 green/red power/status indicator
Terminal base 1794-TB2, -TB3, -TB3S, -TB3T, -TB3TS, and -TBN
Conversion Rate 1.024ms maximum all channels
Output type 0 to 20 mA; 4 to 20 mA; +/- 10VDC; 0 to 10 VDC
No. of inputs Four (4) Single Ended
Product Description Flex IO High Density Analog Output Module
External DC supply range 10.0…31.2V DC (includes 5% AC ripple)
Mounting DIN Rail
Operating Temperature 0 to 55 C (32 to 131 F)
Storage Temperature –40…85 °C (–40…185 °F)
Resolution 12 bits plus sign Voltage: 2.56mV/cnt Current: 5.13µA/cnt
Data Format left justified, 16 bit 2s complement
Conversion Type Pulse Width modulation
Vibration 5g @ 10 to 500 Hz
Product Type Flex I/O Output Analog Module
Outputs 4 Single-ended
Output Current Terminal 4 to 20 mA
Output Voltage Terminal +/- 10 Volts
Current Load on Voltage Output 3 mA maximum
Flexbus Current 20 mA
Power Dissipation 4.5 W at 31.2 Volts DC maximum
Thermal Dissipation 13.6 BTU/hour at 31.2 Volts DC maximum

  

 

Information About 1794-OE4

The Allen-Bradley 1794-OE4 is an analog output module from the Flex IO product family. This module is used as a component of Distributed I/O node, compatible with Flex I/O communication adapters such as Ethernet, ControlNet, Profibus and Remote I/O. This module features Four (4) user configurable output channels, designed to provide 0 to 20mA, 4 to 20 mA current signals and, +/- 10VDC and 0 to 10 VDC voltage signals signals. Use this module to implement automatic and manual control of modulating devices such as Variable Frequency Drives (VFD), modulating control valves, converters, transducers, dampers, louvers and other Final Control Elements (FCE). The output channels of this module support non-isolated, single ended configuration.

The 1794-OE4 has a resolution of 12 bits plus sign with specific increments and decrements of 2.56mV/cnt for voltage and 5.13µA/cnt for Current. The module’s analog data is stored to a registered formatted as left justified, 16 bit 2’s complement. This register is converted using pulse width modulation method.

The 1794-OE4 supports installation with Flex I/O communication adapters including 1794-ACN15, 1794-ACNR15, 1794-AND, 1794-AENT, and 1794-AENTR. It may also be used with a MicroLogix compact controller, via 1794-ASB and 1794-APB communication adapters.

The 1794-OE4 is compatible with a variety of terminal bases such as 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, and 1794-TBN. Only One (1) terminal base is required to install the module. Terminal bases provide DIN rail attachment as well as output signal wiring termination points. The 1794-OE4 required keyswitch position is 4.

The module has a dimension of 94.0 x 94.0 x 53.3 mm or 3.7 x 3.7 x 2.1 in. It has a with built-in group diagnostic LEDs that consists of One (1) green/red power/status indicator.

The 1794-OE4 is provided with green status indicator for monitoring the module’s operation. This module does not require calibration. The module comes with an output resolution of 12 bit + sign, 2.56 mV/cnt for voltage, and 5.13 µA/cnt for current output. It uses pulse width modulation as its output conversion type, with an output conversion rate for all channels of 1.024 milliseconds.The

1794-OE4 module has a current input accuracy of 0.425% full scale at 25 degrees Celsius and it has 0.0069% full scale per degree Celsius current input accuracy drift with temperature. Its voltage input accuracy is 0.133% full scale at 25 degrees Celsius and it has 0.0045% full scale per degree Celsius voltage input accuracy drift with temperature.

The module’s output signal ranges are 4 to 20 mA, 0 to 20 mA, +/-10 Volts, and 0 to 10 Volts. The 1794-OE4 also has an external DC supply current of 70 mA at 24 Volts DC. No individual channels are isolated, but the module has a continuous isolation voltage of 50 Volts between I/O and the system. It has a 24 milliseconds input step response time for the voltage or input terminals and a 20 mA bus rating. This module has 24 milliseconds (voltage output) step response time of up to 63% of the full-scale setting. It has a 3 mA maximum current load on the voltage output and a 15 to 750 Ω resistive load for the output current. This module’s maximum power dissipation is 4.5W at 31.2 Volts DC and its maximum thermal dissipation is 15.3 BTU/ hour also at 31.2 Volts DC. It also has an operating temperature range of 0 to 55 degrees Celsius.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 1794-OE4
Question: What types of analog output signals does the 1794-OE4 support?
Date Update:02/06/2025
Answer:

This module supports multiple output signal types, offering flexibility for different control applications. Supported outputs include:

  • 0 to 20 mA current output, commonly used for analog instrumentation.
  • 4 to 20 mA current output, a standard for process control.
  • +/-10V DC voltage output, useful for driving devices that require bipolar voltage.
  • 0 to 10V DC voltage output, often used for standard analog signaling.

This variety ensures compatibility with a wide range of industrial equipment and processes.

Question: What is the resolution of the 1794-OE4 module, and why is it important?
Date Update:02/06/2025
Answer:

The 1794-OE4 module features a 12-bit resolution plus sign for both voltage and current outputs. For voltage, this corresponds to 2.56 mV per count, and for current, 5.13 µA per count. This resolution allows for precise control of analog devices, such as variable frequency drives, valves, or other actuators. High-resolution output ensures smooth and accurate modulation of processes. Accurate control improves overall system performance and product quality.

Question: Which terminal bases are compatible with the 1794-OE4 module?
Date Update:02/06/2025
Answer:

The 1794-OE4 is designed for installation with the following Flex I/O terminal bases:

  • 1794-TB2
  • 1794-TB3
  • 1794-TB3S
  • 1794-TB3T
  • 1794-TB3TS
  • 1794-TBN

These bases provide the necessary electrical connections and mechanical support. Each base offers different wiring and grounding options depending on system needs. Selecting the correct terminal base ensures proper installation and reliable operation. These bases also enable easy module replacement and maintenance.

Question: How should the 1794-OE4 module be installed in a Flex I/O system?
Date Update:02/06/2025
Answer:

The 1794-OE4 module should be installed properly to ensure safe and reliable operation. Recommended steps include:

  • Mount the appropriate terminal base (e.g., 1794-TB2) securely on the DIN rail.
  • Slide the module onto the terminal base and lock it in place.
  • Connect the external 24V DC power supply within the specified voltage range.
  • Wire the output terminals according to the application’s requirements and observe proper grounding.

Following these steps helps maintain signal integrity and system reliability.

Question: Does the 1794-OE4 module remain in production and available for purchase?
Date Update:02/06/2025
Answer:

Yes, the 1794-OE4 is currently in an Active Mature lifecycle status. This means it is still available for purchase and supported by Rockwell Automation, although it may be nearing the later stages of its product lifecycle.

IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 1794-OE4 is a Flex I/O analog output module. This module has Four (4) analog output channels, providing analog output signals such as 0 to 20 mA; 4 to 20 mA; +/- 10VDC; 0 to 10 VDC. It has a resolution of 12-bit and compatible for installation with terminal bases such as 1794-TB2, -TB3, -TB3S, -TB3T, -TB3TS, and -TBN.

 

Technical Specifications 

 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1794-OE4
Wire Size Determined by installed terminal base
External DC supply, nom 24V DC
Indicators 1 green/red power/status indicator
Terminal base 1794-TB2, -TB3, -TB3S, -TB3T, -TB3TS, and -TBN
Conversion Rate 1.024ms maximum all channels
Output type 0 to 20 mA; 4 to 20 mA; +/- 10VDC; 0 to 10 VDC
No. of inputs Four (4) Single Ended
Product Description Flex IO High Density Analog Output Module
External DC supply range 10.0…31.2V DC (includes 5% AC ripple)
Mounting DIN Rail
Operating Temperature 0 to 55 C (32 to 131 F)
Storage Temperature –40…85 °C (–40…185 °F)
Resolution 12 bits plus sign Voltage: 2.56mV/cnt Current: 5.13µA/cnt
Data Format left justified, 16 bit 2s complement
Conversion Type Pulse Width modulation
Vibration 5g @ 10 to 500 Hz
Product Type Flex I/O Output Analog Module
Outputs 4 Single-ended
Output Current Terminal 4 to 20 mA
Output Voltage Terminal +/- 10 Volts
Current Load on Voltage Output 3 mA maximum
Flexbus Current 20 mA
Power Dissipation 4.5 W at 31.2 Volts DC maximum
Thermal Dissipation 13.6 BTU/hour at 31.2 Volts DC maximum

  

 

Information About 1794-OE4

The Allen-Bradley 1794-OE4 is an analog output module from the Flex IO product family. This module is used as a component of Distributed I/O node, compatible with Flex I/O communication adapters such as Ethernet, ControlNet, Profibus and Remote I/O. This module features Four (4) user configurable output channels, designed to provide 0 to 20mA, 4 to 20 mA current signals and, +/- 10VDC and 0 to 10 VDC voltage signals signals. Use this module to implement automatic and manual control of modulating devices such as Variable Frequency Drives (VFD), modulating control valves, converters, transducers, dampers, louvers and other Final Control Elements (FCE). The output channels of this module support non-isolated, single ended configuration.

The 1794-OE4 has a resolution of 12 bits plus sign with specific increments and decrements of 2.56mV/cnt for voltage and 5.13µA/cnt for Current. The module’s analog data is stored to a registered formatted as left justified, 16 bit 2’s complement. This register is converted using pulse width modulation method.

The 1794-OE4 supports installation with Flex I/O communication adapters including 1794-ACN15, 1794-ACNR15, 1794-AND, 1794-AENT, and 1794-AENTR. It may also be used with a MicroLogix compact controller, via 1794-ASB and 1794-APB communication adapters.

The 1794-OE4 is compatible with a variety of terminal bases such as 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, and 1794-TBN. Only One (1) terminal base is required to install the module. Terminal bases provide DIN rail attachment as well as output signal wiring termination points. The 1794-OE4 required keyswitch position is 4.

The module has a dimension of 94.0 x 94.0 x 53.3 mm or 3.7 x 3.7 x 2.1 in. It has a with built-in group diagnostic LEDs that consists of One (1) green/red power/status indicator.

The 1794-OE4 is provided with green status indicator for monitoring the module’s operation. This module does not require calibration. The module comes with an output resolution of 12 bit + sign, 2.56 mV/cnt for voltage, and 5.13 µA/cnt for current output. It uses pulse width modulation as its output conversion type, with an output conversion rate for all channels of 1.024 milliseconds.The

1794-OE4 module has a current input accuracy of 0.425% full scale at 25 degrees Celsius and it has 0.0069% full scale per degree Celsius current input accuracy drift with temperature. Its voltage input accuracy is 0.133% full scale at 25 degrees Celsius and it has 0.0045% full scale per degree Celsius voltage input accuracy drift with temperature.

The module’s output signal ranges are 4 to 20 mA, 0 to 20 mA, +/-10 Volts, and 0 to 10 Volts. The 1794-OE4 also has an external DC supply current of 70 mA at 24 Volts DC. No individual channels are isolated, but the module has a continuous isolation voltage of 50 Volts between I/O and the system. It has a 24 milliseconds input step response time for the voltage or input terminals and a 20 mA bus rating. This module has 24 milliseconds (voltage output) step response time of up to 63% of the full-scale setting. It has a 3 mA maximum current load on the voltage output and a 15 to 750 Ω resistive load for the output current. This module’s maximum power dissipation is 4.5W at 31.2 Volts DC and its maximum thermal dissipation is 15.3 BTU/ hour also at 31.2 Volts DC. It also has an operating temperature range of 0 to 55 degrees Celsius.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

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