Allen-Bradley | 1756-CNBR | ControlLogix
$102.60
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Allen-Bradley | 1756-CNBR | ControlLogix
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Product Description: Allen-Bradley 1756-CNBR
The Allen-Bradley 1756-CNBR is a ControlNet communication module with redundant media support, designed for use within ControlLogix systems. It allows for high-speed, deterministic communication between controllers and distributed devices over ControlNet networks. The module supports scheduled and unscheduled messaging and enables redundant media for increased system reliability.
Key Features
- Dual BNC connectors for redundant ControlNet media support
- Supports both scheduled (real-time) and unscheduled messaging
- Allows controller-to-controller and controller-to-I/O communication
- Enables communication with ControlNet-based HMI, drives, and I/O
- Configurable via RSLogix 5000 or Studio 5000 software
- Supports ControlNet network diagnostic and management functions
- Optical isolation between the backplane and network ports
Technical Specifications
- Media Type: RG-6 coaxial with BNC connectors (redundant support)
- Communication Rate: 5 Mbps (ControlNet standard)
- Backplane Current Draw: 1.0 A at 5.1V DC
- Isolation Voltage: 30V (continuous), basic insulation between backplane and network
- Module Location: Any slot in a ControlLogix chassis
- Maximum Network Nodes: 99 (logical)
- Operating Temperature: 0 to 60°C
- Storage Temperature: -40 to 85°C
- Relative Humidity: 5% to 95% non-condensing
- Certifications: UL, CE, CSA, KC, ATEX
Application Areas
- Real-time control and I/O over ControlNet
- Distributed motion and process control systems
- Redundant network architectures in critical environments
- High-speed data exchange between controllers and devices
- ControlNet device integration in manufacturing systems
Advantages
- Redundant media support enhances network reliability and fault tolerance
- Provides deterministic communication with low latency
- Scalable architecture for complex automation systems
- Seamless integration with existing ControlNet infrastructure
- Fully supported within the Rockwell Automation software environment