Allen Bradley 1756-DNB DeviceNet Scanner Module

Core Performance & Industrial Application

The Allen Bradley 1756-DNB is a DeviceNet scanner/bridge module designed for Rockwell ControlLogix PLC chassis.

It acts as the master scanner on the DeviceNet fieldbus network, realizing data exchange between Logix controller and DeviceNet slave devices.

It can connect remote I/O blocks, variable frequency drives, sensors, valve terminals and other DeviceNet slave equipment.

It supports RSNetWorx software configuration, scan list setup, network diagnosis and online status monitoring.

It supports multiple baud rate options: 125Kbps, 250Kbps, 500Kbps, with built-in LED status indicators for easy troubleshooting.

It communicates with the ControlLogix backplane, mapping DeviceNet I/O data into controller tags for program reading and writing.

It is widely used for spare replacement in automotive, packaging, water treatment and production line automation systems.

Technical Specifications

▶ Product type: DeviceNet scanner / bridge communication module

▶ Brand: Allen Bradley (Rockwell Automation)

▶ Model: 1756-DNB

▶ Compatible chassis: ControlLogix 1756 series chassis

▶ Fieldbus: DeviceNet

▶ Network baud rate: 125 / 250 / 500 Kbps

▶ DeviceNet supply voltage: 11 ~ 25 VDC

▶ Configuration software: RSNetWorx for DeviceNet

▶ Mounting: Slot installation on 1756 backplane

▶ Indicator: Digital display + LED status lights

▶ Operating temperature: 0℃ ~ +60℃

▶ Protection rating: IP20 (inside control cabinet)

▶ Feature: Fieldbus master scanning, I/O data mapping, network diagnostic

▶ Country of origin: USA

▶ Compliance: CE, UL certification

Industry Applications

Applied in auto assembly lines, packaging machinery, water treatment plants and factory automation for DeviceNet network communication transformation and spare replacement.

Note: Confirm firmware version and network baud rate before ordering