The Allen-Bradley 1756-CNB is a high-performance ControlLogix ControlNet bridge communication module designed to interface a ControlLogix chassis with a ControlNet network. Operating on standard media, this module facilitates reliable, deterministic data exchange across industrial automation architectures using the Common Industrial Protocol (CIP).
Engineered for seamless integration into standard ControlLogix rack environments, the 1756-CNB handles both scheduled I/O data transfers and unscheduled messaging. It bridges critical control and information data between the ControlLogix backplane and external ControlNet nodes, ensuring synchronized and repeatable communication for complex manufacturing and process control applications.
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Catalog Number | 1756-CNB |
| Product Type | ControlNet Bridge Communication Module |
| Platform | ControlLogix (1756 Series) |
| Communication Rate | 5 Mbps |
| Network Media | Standard ControlNet Media |
| Logix Connections | 40 to 48 |
| Maximum Nodes Supported | 99 per network |
| Backplane Current Draw (5.1V DC) | 970 mA |
| Backplane Current Draw (24V DC) | 1.7 mA |
| Power Dissipation | 5.1 W |
| Thermal Dissipation | 17.4 BTU/hr |
| Enclosure Type | Open-style |
| Country of Origin | United States |
The 1756-CNB module mounts directly into any slot of a standard ControlLogix 1756 chassis. Ensure the chassis power is disconnected before installing or removing the module. Secure the module using the top and bottom latches to ensure proper backplane seating and electrical connection. Connect the standard ControlNet coaxial cable to the front BNC port using appropriate T-taps and terminating resistors as required by the network topology.
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Returns & Warranty
Manufacturer: Allen-Bradley
Product No.: 1756-CNB
Country of origin:United States
Product Type: Communication Modules
Payment: T/T, Western Union
Weight: 1000g
Shipping port: Xiamen
Warranty: 12 months
The Allen-Bradley 1756-CNB is a high-performance ControlLogix ControlNet bridge communication module designed to interface a ControlLogix chassis with a ControlNet network. Operating on standard media, this module facilitates reliable, deterministic data exchange across industrial automation architectures using the Common Industrial Protocol (CIP).
Engineered for seamless integration into standard ControlLogix rack environments, the 1756-CNB handles both scheduled I/O data transfers and unscheduled messaging. It bridges critical control and information data between the ControlLogix backplane and external ControlNet nodes, ensuring synchronized and repeatable communication for complex manufacturing and process control applications.
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Catalog Number | 1756-CNB |
| Product Type | ControlNet Bridge Communication Module |
| Platform | ControlLogix (1756 Series) |
| Communication Rate | 5 Mbps |
| Network Media | Standard ControlNet Media |
| Logix Connections | 40 to 48 |
| Maximum Nodes Supported | 99 per network |
| Backplane Current Draw (5.1V DC) | 970 mA |
| Backplane Current Draw (24V DC) | 1.7 mA |
| Power Dissipation | 5.1 W |
| Thermal Dissipation | 17.4 BTU/hr |
| Enclosure Type | Open-style |
| Country of Origin | United States |
The 1756-CNB module mounts directly into any slot of a standard ControlLogix 1756 chassis. Ensure the chassis power is disconnected before installing or removing the module. Secure the module using the top and bottom latches to ensure proper backplane seating and electrical connection. Connect the standard ControlNet coaxial cable to the front BNC port using appropriate T-taps and terminating resistors as required by the network topology.
| Product Image | Model Number / Title | Condition | Availability | Action |
|---|---|---|---|---|
|
Allen-Bradley 1756-DHRIO ControlLogix DH Plus and RIO Communications Module | Original New | In Stock | View Details |
|
Allen-Bradley 1756-ENET ControlLogix Ethernet Communication Module | Original New | In Stock | View Details |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|
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