Allen-Bradley 1761-NET-ENI MicroLogix Ethernet Interface Module

Overview

The 1761-NET-ENI Ethernet Interface Module from Allen-Bradley enables MicroLogix and CompactLogix controllers to communicate over Ethernet/IP networks. It converts DF1 serial data into Ethernet packets, allowing efficient data exchange between PLCs, HMIs, and SCADA systems. Designed for robust industrial performance, the module supports both 10 Mbps and 100 Mbps transmission speeds, depending on the hardware series.

Technical Specifications

• Model / Part Number: 1761-NET-ENI

• Manufacturer: Allen-Bradley

• Product Line: MicroLogix 1000

• Product Type: Ethernet Interface Module

• Category: PLC Communication Modules

• Communication Protocols: DF1 Full-Duplex and Ethernet/IP

• Ports: 2 total (1 RS-232 serial, 1 Ethernet/IP)

• Ethernet Speed: Series A/B – 10 Mbps; Series C/D – 10/100 Mbps

• Input Voltage Range: 20.4–26.4 V DC

• Current Draw: 50 mA typical, 100 mA maximum at 24 V DC

• Power Supply Type: DC-powered

• Isolation Voltage: 710 V DC for one minute

• Mounting Options: DIN rail or panel mount

• Cable Compatibility: Cat5, Cat5e, Cat6, Cat6e

• Safety Feature: Integrated Master Control Relay (MCR)

• Certifications: IEC801-2, 3, 4, 5, and 6 compliant

• Operating Temperature: 0°C to +60°C (32°F to 140°F)

• Storage Temperature: -45°C to +85°C

• Weight: 0.44 lbs (0.20 kg)

• Product Lifecycle: Discontinued / Obsolete

Application Scenarios

The 1761-NET-ENI is used to integrate MicroLogix PLCs with Ethernet-based control networks. It is ideal for applications requiring remote monitoring, SCADA communication, or PLC-to-PLC messaging. Common environments include process control, packaging systems, and distributed automation networks.

FAQ

Q: What does the 1761-NET-ENI module do?
A: It provides Ethernet/IP connectivity to MicroLogix controllers by translating DF1 serial data into Ethernet packets.

Q: Is this module compatible with CompactLogix systems?
A: Yes, it can communicate with CompactLogix controllers using standard Ethernet/IP protocols.

Q: What’s the difference between Series A/B and Series C/D?
A: Series A and B support 10 Mbps Ethernet, while Series C and D support 10/100 Mbps communication speeds.

Q: What power source is required?
A: The module operates on a 24 V DC power supply with a typical current draw of 50 mA.

Q: Is this model still in production?
A: No, the 1761-NET-ENI has been discontinued but remains supported through replacements and refurbished units.