Allen-Bradley 1794-AENT Flex I/O Ethernet/IP Adapter

Product Overview

The 1794-AENT is a Flex I/O communication adapter from Allen-Bradley. It connects a Flex I/O rack to an Ethernet network. This device supports the Ethernet/IP protocol. It allows up to eight I/O modules to be installed. The adapter uses a single RJ45 port. Communication speed is 10/100 Mbps.

The module mounts on a DIN rail. It requires an input voltage of 19.2 to 31.2 VDC. Nominal input is 24 VDC. The adapter draws 550 mA max at 24 VDC. Power dissipation is 7.3 W at 19.2 VDC. Thermal dissipation is 24.9 BTU/hr.

Application Scenarios

This adapter works with PLC5, SLC500, and Logix controllers. It acts as remote I/O in distributed architectures. Use it in manufacturing, process control, and material handling. The module supports linear topology. Network address is set via thumbwheel switches or DHCP server. It is ideal for cost-effective distributed I/O systems.

Technical Specifications

Specifications include: operating temperature 0 to 55 °C. Storage temperature -40 to 85 °C. Vibration tested at 5 g, 10-500 Hz. Operating shock 30 g peak. Isolation voltage 50 V continuous. Flexbus current 640 mA maximum. Wire size 0.34 to 2.5 mm² (22-12 AWG). Weight 0.44 lbs (0.20 kg). Dimensions 87 x 94 x 92 mm.

Indicators: module status, network status, link status. Protocol: Ethernet/IP. Enclosure: open-style. Cable: RJ45 Cat.5.

Installation & Maintenance Guide

Mount the adapter on a DIN rail. Connect power using stranded copper wire. Torque terminal screws to 0.8 Nm (7 lb-in). Use wire insulation rated 75 °C or higher. Ensure maximum insulation thickness of 1.2 mm. Set network address via thumbwheel switches or DHCP. Default switch setting is 999. Connect an RJ45 cable to the Ethernet port. The module supports up to eight Flex I/O modules.

Packing List

One Allen-Bradley 1794-AENT communication adapter. One installation guide. No additional accessories included. Shipping via FedEx, UPS, or DHL.