Rated 4.6 with 26 reviews

1794-OE4

Revisions: Ser A Ser B

Description:   The Allen-Bradley 1794-OE4 Flex I/O Output Analog Module has 4 Single-ended Outputs, a 12 bits Resolution, and a Left Justified Data Format. It also operates with a 4-20mA Output Current Terminal and a +/- 10V Output Voltage Terminal.

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Warranty: 1 year DO Supply Warranty Included
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Repairs: We offer repair service for the 1794-OE4.
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1-800-730-0292

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About 1794-OE4

The Allen-Bradley 1794-OE4 is a FLEX I/O Series B 24 Volts DC selectable analog module. You can use the 1794-TB2, 1794-TB3T, 1794-TB3S, 1794-TBN, or 1794-TB3TS terminal base unit for the 1794-OE4 module but the 1794-TB3 is recommended. It can be mounted on a DIN rail or a panel mount and it uses an open-type enclosure. It also has a green status indicator for monitoring its current state. No calibration is necessary.

The module comes with an output resolution of 12 bit + sign, 2.56 mV/cnt, and 5.13 µA/cnt. It uses pulse width modulation as its output conversion type, with an output conversion rate for all channels of 1.024 milliseconds, and it has a data format of 16 bits. The 1794-OE4 module has a current input accuracy of 0.425% full scale at 25 degrees Celsius and 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 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 for voltage or input terminal and a 20 mA bus rating. This module has a 24 milliseconds (voltage output) step response of up to 63% of full-scale. It has a 3 mA maximum current load on 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.

Technical specifications:

Part Number:1794-OE4
Product Type:Flex I/O Output Analog Module
Outputs:4 Single-ended
Resolution:12 bits
Data Format:Left Justified
Conversion Type:Pulse with Modulation
Output Current Terminal:4-20mA
Output Voltage Terminal: +/- 10V
Current Load on Voltage Output:3mA max.
Flexbus Current:20mA
Power Dissipation:4.5W @ 31.2V DC max.
Thermal Dissipation:13.6 BTU/hr. @ 31.2V DC max.

FAQ

Question: What is the data conversion type of 1794-OE4?

Answer: 1794-OE4 uses Pulse with Modulation for conversions. 

 

Question: What is the data format of 1794-OE4?

Answer: The data format of 1794-OE4 is left justified, 16 bit 2's compliment. 

 

Question: What is the price of 1794-OE4?

Answer: Submit a quote request, send us an email, or call 800-730-0292 for our best price. 

Please refer to the manual for more information about the 1794-OE4 such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1794-OE4 Ser A
1794-OE4/A, Series A, Rev A Request Quote
1794-OE4 Ser B
1794-OE4/B, Series B, Rev B Request Quote

Common misspellings: 1794OE4
l794-OE4
179A-OE4
1794-0E4
1794-OEA
1794-OE4X