Allen-Bradley 1756-CNB/B: Advanced ControlNet Bridge Solution
The Allen-Bradley 1756-CNB/B delivers reliable network connectivity for industrial automation. This Series B bridge module connects ControlLogix systems to ControlNet networks. It enables seamless data exchange across your entire operation. The 1756-CNB/B ensures robust communication for critical control applications.
Key Features & Benefits
- High-Speed Performance: 5 Mbps network communication
- Expanded Connectivity: 64 simultaneous connections
- Dual Port Design: BNC and RJ-45 connections
- Easy Configuration: Simple node address selection
- Wide Compatibility: Works with multiple Allen-Bradley platforms
Technical Specifications
- Brand: Allen-Bradley / Rockwell Automation
- Model: 1756-CNB/B ControlNet Bridge
- Series: ControlLogix Series B
- Network Speed: 5 megabits per second
- Network Capacity: 99 maximum nodes
- Connection Limit: 64 bidirectional connections
- Communication Ports:
- 1 BNC port for coaxial cable
- 1 RJ-45 NAP port
- Power Requirements:
- 970 mA at 5.1V DC
- 1.7 mA at 24V DC
- Power Consumption: 5.1 watts maximum
- Heat Output: 17.4 BTU per hour
- Message Capacity: 20 unconnected buffers
- Logix Support: 40-48 connections per module
- Node Addressing: 01 to 99 via front switches
- Physical Size: Single slot width
- Module Weight: 0.57 pounds
- Operating Range: 0°C to 60°C
- Storage Temperature: -40°C to 85°C
- Humidity Tolerance: 5-95% non-condensing
Installation & Setup
- Install in any available chassis slot
- Set node address using front panel switches
- Choose between coaxial or twisted pair connection
- Configure network parameters in control software
- Verify proper network recognition
- Monitor status via front display
Package & Support
- One 1756-CNB/B bridge module
- Complete installation documentation
- 12-month comprehensive warranty
- Fast global shipping via FedEx, UPS, DHL
- Professional technical support included
Expert FAQ
What is the difference between Series A and B?
Series B offers enhanced performance and updated hardware components.
How many devices can connect to the network?
The network supports up to 99 nodes with this bridge module.
Can I use both ports simultaneously?
Yes, both BNC and RJ-45 ports are active and available for use.
What types of data transfer does it support?
It handles both scheduled I/O data and unscheduled messaging.
Is redundancy supported with this module?
Yes, you can pair modules for redundant control applications.
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