Excellent PLC
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Allen Bradley 1756-CN2RK ControlLogix ControlNet Communication Module
- Product Details
- FAQs
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- Packing & Delivery
- Product Ratings
Product Introduction
The Allen-Bradley 1756-CN2RK is a high-performance, dual-channel ControlNet communication module designed for ControlLogix systems requiring redundant or high-speed networking. This module allows robust communication between multiple ControlLogix controllers, I/O modules, and networked devices while maintaining system reliability and high throughput.
The 1756-CN2RK is ideal for applications that demand fault-tolerant communication, high availability, and optimized network performance. Its dual-channel design supports simultaneous data paths, enabling redundancy and enhanced bandwidth for complex industrial control networks.
Product Specifications
| Parameter | Description |
|---|---|
| Product Type | ControlLogix Communication Module |
| Module Performance | High-performance dual-channel |
| Communication Protocol | ControlNet |
| Logix Connections | 128 |
| Channel Configuration | Dual-channel for redundancy or high-speed operation |
| System Compatibility | ControlLogix chassis and controllers |
| Industrial Rating | Designed for industrial automation networks |
| 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
• Used for high-performance ControlNet communication in distributed control systems
• Suitable for redundant network configurations requiring dual communication channels
• Applied in process control, manufacturing automation, and critical industrial operations
• Enables robust, fault-tolerant communication between ControlLogix controllers and I/O modules
• Ideal for applications requiring simultaneous high-speed data transmission and network reliability
Advantages
• Dual-channel design provides redundancy and increases network reliability
• High-performance module supports up to 128 Logix connections for complex systems
• Seamless integration with ControlLogix controllers simplifies configuration and monitoring
• Low power and thermal dissipation ensures stable operation within control panels
• Open-style mounting allows flexible installation in industrial environments
• Designed for critical industrial networks where downtime and communication errors must be minimized
FAQ
-
What is the primary function of the 1756-CN2RK module?
It provides dual-channel ControlNet communication for high-performance and redundant ControlLogix networks. -
How many Logix connections does it support?
The module supports up to 128 Logix connections. -
Can the dual channels operate independently?
Yes, the channels can provide simultaneous communication paths for redundancy or increased throughput. -
Is the module compatible with standard ControlNet networks?
Yes, it integrates seamlessly with existing ControlNet networks and devices. -
What is the maximum number of nodes supported?
The maximum nodes depend on network configuration, typically up to 99 per channel in standard networks. -
Does it generate significant heat?
No, power dissipation is 6.7 W with thermal dissipation of 22.9 BTU/h, suitable for industrial enclosures. -
Can it be used in redundant network architectures?
Yes, the dual-channel design is specifically for redundancy and high-availability systems. -
What operating temperature range is supported?
The module operates from 0 to 60 °C. -
How is the module installed in a ControlLogix system?
It is mounted in a ControlLogix chassis and communicates via the backplane with other modules and controllers. -
What are the advantages of high-performance communication?
High-performance communication reduces latency, increases throughput, and supports critical industrial automation processes.
Related Models
| Model | Description |
|---|---|
| 1756-CN2R | Standard ControlNet communication module |
| 1756-CN2RK | High-performance dual-channel ControlNet module |
| 1756-CN2E | Enhanced ControlNet communication module |
| 1756-EN2TR | EtherNet/IP communication module |
| 1756-EN2F | EtherNet/IP 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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