1756-CNB/B ControlNet Bridge Module | Allen-Bradley

Allen-Bradley 1756-CNB/B ControlNet Bridge Module

Core Features

ControlLogix to ControlNet interface bridge

5 Mbps high-speed communication

Supports 99 nodes per network

Non-redundant media operation

Technical Specifications

Communication rate: 5 megabits/second

Max connections: 64 (scheduled/unscheduled)

Power consumption: 970mA @ 5.1V DC

Network ports: 1 BNC + 1 RJ45

Operating temperature: 0-60°C (32-140°F)

Slot width: Single-slot module

Weight: 0.57 lbs (0.26 kg)

Model Hierarchy

1756-CNB (Base model)

1756-CNB/A (First revision)

1756-CNB/B (Current version)

Industrial Applications

Factory-wide control system integration

Distributed I/O network configurations

SCADA and HMI communication bridging

Legacy system modernization projects

Installation Benefits

Simplifies network expansion with 99-node capacity

Reduces wiring complexity in multi-chassis setups

Enables real-time data exchange across platforms

Compatible Systems

ControlLogix 5550 and 5560 controllers

Flex IO and POINT IO systems

SLC and PLC5 ControlNet networks

Third-party ControlNet certified devices

Package Contents

1x 1756-CNB/B module

Mounting hardware

Quick start guide

Shipping Options

Fedex Priority Overnight

UPS 2nd Day Air

DHL Express Worldwide