1756-CNB ControlNet Bridge Module Allen-Bradley

Allen-Bradley 1756-CNB ControlLogix ControlNet Bridge Module

Key Technical Specifications

• Brand: Allen-Bradley
  
• Model: 1756-CNB
• Series: ControlLogix
• Module Type: ControlNet Bridge Module
• Communication Rate: 5 megabits per second
• Maximum Nodes: 99 on network
• Maximum Connections: 64 bidirectional
• Input Current: 970 mA at 5.1V DC, 1.7 mA at 24V DC
• Power Dissipation: 5.1 Watts
• Thermal Dissipation: 17.4 BTU per hour
• Integrated Ports: One BNC, One RJ-45 NAP port
• Operating Temperature: 0 to 60°C (32 to 140°F)

Installation & Configuration

• Install the 1756-CNB in any ControlLogix chassis slot
• Set node address switches to unique value between 01 and 99
• Connect using BNC connector for standard non-redundant operation
• Use RJ-45 port for network access and configuration
• Module supports both scheduled and unscheduled data connections

Network Performance Features

• Handles control of I/O data with Logix5550 controllers
• Bridges data between ControlLogix backplane and ControlNet network
• Supports up to 20 buffers for unconnected messages
• Enables distributed I/O applications across multiple racks
• Provides self-diagnostics through online backplane connection

Frequently Asked Questions (FAQ)

• What is the maximum number of nodes supported?
  The 1756-CNB supports up to 99 nodes on the ControlNet network.
• Can this module be used in redundant configurations?
  No, the 1756-CNB is designed for standard non-redundant network applications.
• How many connections does the module support?
  It supports up to 64 bidirectional connections with other ControlNet devices.
• What is the communication speed of this bridge?
  The module operates at 5 megabits per second on the ControlNet network.
• Do you offer technical support for installation?
  We provide basic installation guidance and technical specifications for all products.

For purchasing information or technical specifications, please contact our sales team. Contact: sales@nex-auto.com