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Allen Bradley 1756-CNBR/E ControlLogix Redundant Bridge Module
- Product Details
- FAQs
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- Packing & Delivery
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Product Introduction
The Allen-Bradley 1756-CNBR/E is an enhanced ControlLogix Redundant Bridge (CNBR) communication module designed to provide high-reliability network bridging and redundancy for ControlNet systems. It ensures continuous, deterministic communication between multiple ControlLogix controllers, I/O modules, and other networked devices, even in the event of a network segment failure.
The 1756-CNBR/E is ideal for mission-critical industrial automation applications where network uptime and data integrity are essential. Its design improves upon standard CNBR modules with enhanced performance and compatibility, making it a key component in high-availability ControlNet architectures.
Product Specifications
| Parameter | Description |
|---|---|
| Product Type | ControlLogix Redundant Bridge Module |
| Module Function | Redundant network bridging and high-reliability communication |
| System Compatibility | ControlLogix chassis and controllers |
| Industrial Rating | Designed for continuous industrial automation use |
| Power Requirements | 1.0 A @ 5.1 VDC, 2 mA @ 24 VDC |
| Power Dissipation | 6.7 W |
| Thermal Dissipation | 22.9 BTU/h |
| Operating Temperature | 0 to 60 °C |
| Storage Temperature | -40 to 85 °C |
| Enclosure Type Rating | Open-style |
| Dimensions | 144.5 × 34.6 × 130.18 mm |
| Weight | 0.293 kg |
Applications
• Provides redundant communication in ControlLogix ControlNet networks
• Bridges multiple ControlNet segments to maintain continuous network operation
• Suitable for critical industrial applications requiring high availability and fault tolerance
• Ensures deterministic, real-time data transfer between controllers, I/O modules, and devices
• Ideal for high-performance distributed control systems where network reliability is essential
Advantages
• Enhanced redundancy features provide continuous network operation in case of failure
• Compact module design allows easy installation in ControlLogix chassis
• Open-style mounting supports flexible panel installation
• Low power and thermal dissipation ensures stable operation
• Seamless integration with ControlLogix controllers simplifies configuration and network setup
• Designed for robust industrial network performance and mission-critical applications
FAQ
-
What is the primary function of the 1756-CNBR/E?
It provides redundant bridging for ControlNet networks, maintaining continuous communication across multiple network segments. -
How does it differ from the standard 1756-CNBR?
The CNBR/E offers enhanced performance, improved reliability, and better network fault tolerance. -
What are the power requirements for the module?
It requires 1.0 A @ 5.1 VDC and 2 mA @ 24 VDC. -
Can it operate in open-style industrial panels?
Yes, the module has an open-style enclosure rating. -
What is the operating temperature range?
It operates from 0 to 60 °C. -
Does it provide deterministic communication?
Yes, it ensures real-time data transfer for ControlNet devices and controllers. -
How many network segments can it bridge?
It can bridge multiple ControlNet segments depending on system design. -
Is it compatible with all ControlLogix controllers?
Yes, it integrates with standard ControlLogix chassis and controllers. -
Does the module generate significant heat?
No, power dissipation is 6.7 W with thermal dissipation of 22.9 BTU/h. -
Why use a CNBR/E instead of a standard CN module?
CNBR/E provides enhanced redundancy and performance for mission-critical networks that require high availability.
Related Models
| Model | Description |
|---|---|
| 1756-CNBR | Standard ControlLogix Redundant Bridge module |
| 1756-CN2RK | High-performance dual-channel ControlNet module |
| 1756-CN2R | Redundant ControlNet module |
| 1756-CNB | Single-channel ControlNet module |
| 1756-CN2E | Enhanced ControlNet communication module |
| 1756-CN2T | ControlNet trunk module |
Popular Models
| Model | Description |
|---|---|
| 1756-L81E | ControlLogix high-performance controller |
| 1756-L83E | Advanced ControlLogix controller |
| 1756-PA75 | ControlLogix AC power supply |
| 1756-A13 | 13-slot ControlLogix chassis |
| 1756-IF16 | 16-channel analog input module |
| 1756-OB16I | 16-channel DC isolated output module |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.
As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.
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