Allen Bradley 1756-CN2R
The Allen-Bradley 1756-CN2R is a communication module from the ControlLogix controller platform. This module features Two (2) ControlNet BNC port that supports 5 Mbps transmission speed and One (1) USB communication port that supports 12Mbps data rate. This ControlNet module supports redundant ControlNet topology. Up to 128 Logix connections can be established with this module.
This Allen Bradley 1756-CN2R is supplied brand new by PartLogic for machine control, process automation, industrial communication, equipment maintenance and replacement applications. It forms part of our Industrial automation > Plc controllers > Io modules > Communication > Controllogix range and is referenced internally as PartLogic SKU PL26805660700.
Before ordering, please confirm the manufacturer part number, product specifications and compatibility with your existing equipment. If you are replacing a failed, obsolete or hard-to-find part, contact PartLogic and we can help check suitability or source related components.
| Manufacturer | Allen Bradley |
| Category | PLCs |
| Product Line | ControlLogix |
| Part Number | 1756-CN2R |
| UPC | 612598324439 |
| Weight | 0.94 lbs (0.43 kg) |
| Module Type | Bridge Module |
| 1756-CN2R | Series |
| Product Description | ControlNet communication module |
| Maximum Nodes | 99 |
| ControlLogix | Module Type |
| Maximum Connections | 131 |
| ControlNet communication module | Location |
| ControlNet Communication Rate | 5 megabits-second |
| Chassis | Backplane Current (5.1 Volts DC) |
| Communication Port | Two (2) ControlNet; One (1) USB |
| Configuration | Redundant |
| 1300 mA | Backplane Current (24 Volts DC) |
| ControlNet Data Transfer speed | 5 Mbps |
| Input Current | 1300 milliamps at 5.1 Volts DC, 3 milliamps at 24 Volts DC |
| 3 mA | Isolation Voltage |
| USB Data Transfer rate | 12 Mbps |
| Thermal Dissipation | 22.9 BTU per Hour |
| 30 Volts Continuous | Power Dissipation (Max) |
| Mounting | Any 1756 Chassis |
| Power Dissipation | 6.7 Watts |
| 6.7 Watts | Enclosure |
| Compatible Power Supply (Standard) | 1756-PA72/C, 1756-PA75/B, 1756-PB72/C, 1756-PB75/B, 1756-PC75/B, 1756-PH75/B |
| Slot width | 1 |
| Open Type | Thermal Dissipation |
| Compatible Power Supply (Redundant) | 1756-PA75R, 1756-PB75R, 1756-PSCA2 |
| 22.9 BTU/hr | Communication Cable |
| Compatible Chassis | 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 |
| 1786-RG6 quad shield RG6 coaxial cable | Dimensions |
| Backplane current | 1.3 A at 5.1 VDC; 3 mA at 24VDC |
| 5.51 x 4.41 x 5.71 inches | Operating Temperature |
| 32-140 Fahrenheit (0-60 Celsius) | Chassis |
| 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 | Power supply, standard |
| No. of Logix connections | 128 |
| 1756-PA72/C, 1756-PA75/B, 1756-PB72/C, 1756-PB75/B, 1756-PC75/B, 1756-PH75/B | Power supply, redundant |
| Max. no. of connections | 131 |
| Maximum number of nodes | 99 |
| Brand | Allen Bradley |
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