The Allen-Bradley 1756-CN2R ControlNet Communication Module is a high-performance dual-channel interface designed for ControlLogix PLC systems. Featuring redundant media capability, this module ensures uninterrupted data transmission and robust fault tolerance, making it ideal for mission-critical industrial automation networks.
Technical Specifications
Manufacturer: Allen-Bradley (Rockwell Automation)
Model Number:1756-CN2R
Module Type: ControlNet Communication Module
Condition: Brand New
Range of Product: ControlLogix
Weight: 0.25 kg
Dimensions: 14 × 13.2 × 3.5 cm
HS Code: 8537101190
Minimum Order Quantity (MOQ): 1
Origin: USA
System Compatibility: PLC (ControlLogix)
Lifecycle Status: Active
Availability: In Stock
Functional Overview
The 1756-CN2R module is engineered to deliver reliable communication across distributed control applications. Key features include:
Dual-Channel Architecture: Provides redundant media capability for continuous operation during cable or media failures
Bandwidth Capacity: 5 Mbps ControlNet communication for high-speed data transfer
Connectivity: Supports up to128 Logix connections and 99 nodes per network
Fault Tolerance: Automatic switching to backup channels during disruptions ensures system integrity
Integration: Seamlessly connects with ControlLogix systems for plant-wide automation architectures
Durability: Rugged design optimized for manufacturing plants, process industries, and other demanding environments
Application Scenarios
The 1756-CN2R ControlNet Module is widely used in:
Power Generation – reliable communication for turbine and generator control systems
Oil & Gas – distributed monitoring and automation of compressors and pumps
Chemical Processing – robust integration into hazardous process environments
Manufacturing – plant-wide automation requiring high connection capacity and redundancy
FAQ
Q: Is the 1756-CN2R still available? A: Yes, it is active and available in stock.
Q: What is the primary function of this module? A: It provides redundant ControlNet communication for ControlLogix PLC systems.
Q: How many connections can it support? A: Up to 128 Logix connections and 99 nodes per network.
