1794-ADNK | Allen Bradley | DeviceNet FLEX I/O Adapter Module

Product Summary

The 1794-ADNK is a FLEX I/O DeviceNet adapter. It serves as a communication interface between FLEX I/O modules and a DeviceNet network, enabling distributed I/O in Allen-Bradley control systems.

Core Specifications

• Catalog Number: 1794-ADNK
• Module Type: FLEX I/O DeviceNet Adapter
• Network Protocol: DeviceNet
• Communication Rate: 125 kbps, 250 kbps, or 500 kbps
• I/O Capacity: Up to 8 FLEX I/O modules per adapter

Electrical & Performance Characteristics

• Power Supply: 24 VDC (user-supplied)
• Backplane Current: Approximately 450 mA @ 24 VDC (base)
• Node Address: Configurable via rotary switches or software
• Operating Temperature: 0°C to 55°C (32°F to 131°F)

Installation Guide

1. Mount the 1794-ADNK adapter on a DIN rail.
2. Connect 24 VDC power to the adapter.
3. Attach FLEX I/O modules to the right side of the adapter using the FLEXBus connector.
4. Connect the DeviceNet trunkline and dropline cables.
5. Configure the node address and I/O parameters using RSNetWorx for DeviceNet or Logix Designer software.

Selection Guidelines

• Use 1794-ADNK for distributed FLEX I/O applications on DeviceNet networks.
• For EtherNet/IP, consider the 1794-AENT adapter.
• Verify total I/O module power consumption does not exceed the adapter’s capacity.

Frequently Asked Questions