Allen-Bradley 1794-AENTR Flex I/O EtherNet/IP Adapter

Product Description

Configured for EtherNet/IP communication between an industrial Ethernet network and Flex I/O modules, the Allen-Bradley 1794-AENTR (1794-AENTR Ethernet/IP Adapter) provides network access for up to eight Flex I/O modules. It supports 10 Mbps and 100 Mbps communication and operates from a nominal 24 VDC supply.

Hardware Specifications

EtherNet/IP and Flex I/O Interface

The 1794-AENTR transfers I/O data between the EtherNet/IP network and the Flex I/O backplane. Two RJ45 Ethernet ports provide the physical network connections. The adapter supports 10 Mbps and 100 Mbps communication rates.

The adapter accommodates up to eight Flex I/O modules. Therefore, the installed I/O configuration must remain within the specified eight-module capacity. The 24 VDC input operates across a 19.2 to 31.2 VDC range, while the specified inrush current reaches 18 A for 2 ms.

For Allen-Bradley control architectures, Ethernet network loading, I/O density, and backplane configuration should be considered together. Firmware and controller compatibility should also be verified against the installed Flex I/O system before commissioning.

Frequently Asked Questions (FAQ)

Q: How many Flex I/O modules can the 1794-AENTR support?
A: The supplied specification states a maximum capacity of 8 I/O modules.

Q: What Ethernet communication rates does the 1794-AENTR support?
A: The adapter supports 10 Mbps and 100 Mbps Ethernet communication.

Q: What power supply does the 1794-AENTR require?
A: The nominal input voltage is 24 VDC, with an allowable input range of 19.2 to 31.2 VDC.

Field Installation Guidelines

• Install the adapter according to the applicable Flex I/O mechanical installation requirements.
• Verify that the supplied DC voltage remains within the specified 19.2 to 31.2 VDC range.
• Use suitable Category 5 Ethernet cabling for the RJ45 network connections.
• Separate Ethernet cabling from high-voltage power and high-current switching conductors where practical.
• Provide proper protective earth and panel bonding according to the site electrical installation standard.
• Route signal and communication cables to minimize exposure to motor, contactor, and other high-frequency switching noise.
• Tighten terminal connections to the specified 0.8 Nm torque.
• Confirm module seating and backplane connections before energizing the Flex I/O assembly.
• Verify network configuration and controller compatibility before placing the I/O system into service.

Other Attributes

• Series: Allen-Bradley ControlLogix
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

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