Allen-bradley 1756-CNB/E PLC

Allen-bradley 1756-CNB/E PLC

Allen-bradley 1756-CNB/E PLC

Allen-bradley 1756-CNB/E PLC

Allen-bradley 1756-CNB/E PLC

Allen-bradley 1756-CNB/E PLC

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Allen-bradley 1756-CNB/E PLC

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MOQ : 1 Piece

Allen-bradley 1756-CNB/E PLC Specification

Processor Type
Not applicable (Communication Interface Module)

Features
Redundant Media, Status Indicators, Hot Swappable

Load Capacity
Dependent on Backplane

Phase
Single Phase

Application
Industrial Automation, Process Control, Machine Control

Control Type
Digital

Connectivity Type
ControlNet

Cable Length
Maximum 1000m (ControlNet coaxial cable)

Mounting Type
Chassis Mount

Automation Grade
Automatic

IP Rating
IP20

Frequency
50/60 Hz

Remote Control
Yes

Weight
297 g (0.65 lb)

Material
Plastic Body, Metal Frame

Power
2.5 W (maximum)

Temperature
0 to 60C (operating), -40 to 85C (storage)

Voltage
5V DC

Allen-bradley 1756-CNB/E PLC Trade Information

Minimum Order Quantity
1 Piece

Supply Ability
100 Pieces Per Day

Delivery Time
1 Days

Main Export Market(s)
Australia, South America, Eastern Europe, Western Europe, Middle East, Central America, Asia, North America, Africa

Main Domestic Market
All India

About Allen-bradley 1756-CNB/E PLC

P L C Allenbradley CONTROL NET COMMUNICATIONS BRIDGE 1756CNBE

AllenBradley ControlLogix ControlNet Bridge Module 1756CNB and 1756CNBR Rockwell remote timecritical IO and control communication between a master PLC controller and its Control Net System Overview Overview of E DF1 ENQs sent F PCCC status byte STS nonzero in Tx packet G PCCC status

Enhanced Communication Across Industrial Networks

The Allen-Bradley 1756-CNB/E bridges ControlNet devices and ControlLogix controllers, ensuring fast and reliable data transfer in automation environments. With dual BNC coaxial ports, it supports network redundancy and allows for robust system setups, minimizing downtime and simplifying troubleshooting with status indicators and enhanced diagnostics.

Rugged Reliability and Flexible Installation

Built to operate in harsh industrial conditions, the 1756-CNB/E withstands high levels of shock and humidity while maintaining peak performance. Its plastic body with a metal frame, IP20 rating, and hot-swappable design make it easy to install or replace without disrupting operations. Supports a wide range of temperatures and mounting options.

FAQs of Allen-bradley 1756-CNB/E PLC:

Q: How do I connect the Allen-Bradley 1756-CNB/E module to a ControlNet network?

A: To connect the 1756-CNB/E module, use BNC coaxial cables to link the modules two network ports to your ControlNet trunk line. Ensure proper termination at both ends of the cable and assign a unique node address for network communication. Status indicators on the module assist with setup and diagnostics.

Q: What diagnostics features does the 1756-CNB/E provide, and how can they be used?

A: The module features LED indicators for OK, Network A, Network B, and Node Address to quickly assess status. Enhanced diagnostics offer in-depth insight into network health and communication errors, allowing for easier maintenance and reduced downtime.

Q: When should I use redundant media with the 1756-CNB/E module?

A: Redundant media should be used in applications where high network availability is critical. By connecting both ControlNet ports to independent trunk cables, the module can switch to the secondary path if the primary fails, maintaining continuous network operation.

Q: Where can the 1756-CNB/E module be mounted within a system?

A: This module is designed for chassis mounting within a ControlLogix rack. Ensure the rack provides a backplane voltage of 5V DC and accommodates the required 350 mA current draw for safe and reliable operation.

Q: What is the process for replacing a 1756-CNB/E module without downtime?

A: The 1756-CNB/E is hot-swappable, meaning it can be installed or replaced while the system is powered. Before removal, ensure the module is properly isolated from the network. Install the new unit in the same chassis slot, and the module will automatically rejoin the network after a brief initialization.

Q: How can I benefit from the 1756-CNB/Es network capacity?

A: Supporting up to 48 Logix connections, the 1756-CNB/E enables integration of multiple controllers and devices over a single network, enhancing flexibility and scalability in automation and process control environments.

Allen-bradley 1756-CNB/E PLC

Allen-bradley 1756-CNB/E PLC

Allen-bradley 1756-CNB/E PLC

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