Allen-Bradley 1756-CN2R/B ControlNet Communication Module

The Allen-Bradley 1756-CN2R/B is a ControlNet communication module that is used with the ControlLogix 55xx and 5000 series Programmable Automation Controllers (PLCs). It allows you to connect your PLC to a ControlNet network, which is a high-speed, deterministic communication network that is commonly used in industrial automation applications.

Key specifications and features of the 1756-CN2R/B:
Network type: ControlNet
Data rate: 5 Mbps
Number of connections: Up to 64 nodes
Media: RG-6 coaxial cable or shielded twisted-pair cable
Power consumption: 2.5 Watts
Operating temperature: 0 to 60°C (32 to 140°F)
Dimensions: 88.9 mm (3.5 in) wide x 88.9 mm (3.5 in) high x 32.4 mm (1.28 in) deep
Weight: 0.28 kg (0.62 lb)

Features:
High-speed communication: Provides fast and reliable data transfer between devices on the ControlNet network.
Deterministic communication: Ensures that data is delivered in a timely and predictable manner, which is critical for real-time control applications.
Rugged construction: Built to withstand harsh industrial environments.
Easy to install and configure: The module can be easily installed in a ControlLogix chassis and configured using Rockwell Automation software.

Applications:
Industrial automation: Connecting ControlLogix PLCs to devices such as sensors, actuators, and other controllers on a ControlNet network.
Data acquisition and monitoring: Collecting data from sensors and other devices on the network.
Machine-to-machine communication: Enabling communication between machines on the factory floor.
Remote monitoring and control: Monitoring and controlling machines and processes from a remote location.
The Allen-Bradley 1756-CN2R/B is a versatile and reliable communication module that can be used in a variety of industrial automation applications. It provides high-speed, deterministic communication, and is easy to install and configure. However, it is important to note that ControlNet is an older technology and newer options like EtherNet/IP are becoming more popular. If you are starting a new project, you may want to consider using a newer communication technology.

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