The 1794-AENTR is a robust Flex I/O communication adapter from Allen-Bradley.
It connects your I/O rack to central Ethernet-enabled controllers with ease.
This module supports high-availability networks using Device Level Ring topology.
Engineers trust this adapter for its dual-port redundancy and reliable performance.
The 1794-AENTR provides a secure link for up to eight Flex I/O modules.
It operates at a communication rate of 10 to 100 Mbps for flexible data transfer.
Its input voltage range spans from 19.2 to 31.2 Volts DC nominal.
This device mounts directly onto a standard DIN rail for quick installation.
It weighs only 0.56 lbs, making it ideal for space-constrained panels.
Step-by-Step Installation Guide
Mount the 1794-AENTR firmly onto a clean, vibration-free DIN rail section.
Ensure the mounting area meets the 5g vibration rating per IEC 68-2-6.
Connect an external power supply with a 24VDC nominal voltage source.
Use stranded copper wire sized between 22 and 12 AWG for all connections.
The wire must have an insulation rating of 75 °C or higher.
Strip insulation to a maximum thickness of 1.2 mm (3/64 in.).
Plug an RJ45 Cat.5e cable into the first Ethernet port.
Verify the Link1 status LED shows a solid green for a 100 Mbps link.
Connect the second RJ45 cable for redundant network configuration.
Check the Network status LED confirms a healthy connection to the controller.
Product Procurement & Buyer Guide
Procurement managers value the 1794-AENTR for its high system availability.
This adapter solves network downtime by supporting Device Level Ring topologies.
Application engineers appreciate its ability to handle up to 8 I/O modules.
The dual-port design allows for linear or ring network configurations.
You gain network redundancy without adding extra hardware or complexity.
The module consumes just 500 mA at 24V DC for efficiency.
Its thermal dissipation is only 20.8 BTU/hr at 24V DC.
This keeps cabinet temperatures lower and extends component lifespan.
The open-style enclosure requires installation in a protected panel.
Always check the operating temperature range of 0 to 55 degrees Celsius.
This module integrates seamlessly with existing Rockwell Automation ControlLogix systems.
Technical Specifications Summary
The 1794-AENTR includes two RJ45 communication ports for EtherNet/IP protocol.
Its Flexbus current output reaches a maximum of 640 mA at 5V DC.
This unit supports up to eight individual Flex I/O modules per adapter.
The module status LED turns red to indicate a device fault condition.
Power dissipation measures 6.1 W at 19.2V DC input.
The inrush current is rated at 18 Amps for 2 milliseconds.
Isolation voltage is rated for 50 Volts continuous between circuits.
The device withstands an operating shock of 30 g peak acceleration.
Storage temperature tolerance spans from -40 to 85 degrees Celsius.
