1756-CNB: ControlLogix ControlNet Bridge Module
The 1756-CNB is the ControlLogix ControlNet Bridge Module covered on this page. The attribute that decides whether it fits the existing installation without modification is 5.1 Watts.
What separates this variant from its siblings is controllogix controlnet bridge module. A processor or controller is selected on memory, scan time and platform compatibility before anything else. controllogix controlnet bridge module sets how much programme fits, how fast the logic executes and which I/O and networks the unit can host — the three things that decide whether an existing application migrates without a rewrite. Confirming 5.1 Watts against the installed controller family is the check that prevents a processor that boots but cannot run the existing project.
| Feature | Specification |
|---|---|
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number | 1756-CNB |
| Maximum Nodes | 99 |
| Maximum Connections | 64 |
| ControlNet Communication Rate | 5 megabits-second |
| Configuration | Standard |
| Input Current | 970 milliamps at 5.1 Volts DC, 1.7 milliamps at 24 Volts DC |
| Thermal Dissipation | 17.4 BTU per Hour |
| Power Dissipation | 5.1 Watts |
| Slot Width | 1 |
| Weight | 0.57 pounds (0.26 kilograms) |
Related Configurations
Other published configurations in the same family — confirm the distinguishing specification against your installation:
| Related Part Number | Configuration Difference |
|---|---|
| allen-bradley-1756-cnb-b-controlnet-bridge-module-for-controllogix | confirm the configuration against your installation |
| allen-bradley-1756-cnbr-controlnet-redundant-bridge-module-overview | confirm the configuration against your installation |
Availability & Condition at AutoDCSTech
| Part Number | 1756-CNB |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
