Description
The Allen-Bradley 1756-CNBR is a ControlLogix communication module. This module is a ControlNet Bridge communication module that features Two (2) ControlNet ports supporting simplex and redundant ControlNet network. This module also has 1 Network Access Protocol (NAP) having a physical interface of RJ-45 8-pin with shield. It supports communication rate of 5Mbps and 40-48 ControlNet logical connections.
Technical Specifications for 1756-CNBR
| Manufacturer | Rockwell Automation |
| Location | Chassis |
| Module Type | ControlNet communication module |
| Series | ControlLogix |
| Part Number/Catalog No. | 1756-CNBR |
| Brand | Allen-Bradley |
| No. of Ports | Two (2) ControlNet ports |
| Backplane Current (5.1 Volts DC) | 970 milliamps |
| Backplane Current (24 Volts DC) | 1.7 milliamps |
| Isolation Voltage | 30 Volts Continuous |
| Power Dissipation (Max) | 5.5 Watts |
| Enclosure | Open Type |
| Communication Cable | 1786-RG6 quad shield RG6 coaxial cable |
| Dimensions | 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 | 1756-PA72/C, 1756-PA75/B, 1756-PB72/C, 1756-PB75/B, 1756-PC75/B, 1756-PH75/B |
| Power supply, redundant | 1756-PA75R, 1756-PB75R, 1756-PSCA2 |
| Current Draw at 5.1 Volts DC | 970 Miliamperes |
| Current Draw at 24 Volts DC | 1.7 Miliamperes |
| ControlNet Rate of Communication | 5 Mbps |
| Logix Communication Connections | 40-48 |
| Max Connections Supported | 64 |
| Max Number of Nodes | 99 |
| Slot Width | 1 |
| Weight | 0.64 lbs (0.293 kg) |
| UPC | 10612598174086 |
The Allen-Bradley 1756-CNBR, or ControlNet Bridge Redundancy, is an interface module used for communicating within a ControlNet Network. It is the same as the 1756-CNB but the biggest difference is that the 1756-CNBR has an additional ControlNet port, which will support redundant media. This module has 2 ControlNet BNC port while the 1756-CNB only has one, although both of them have 1 ControlNet RJ45 port.
The Allen-Bradley 1756-CNBR is a ControlNet Bridge Module. This module is part of the ControlLogix product family that is used to interface a ControlLogix controller or implement Distributed I/O architecture via the high-speed ControlNet network. This module features Two (2) ControlNet ports, enabling connection to standard (simplex) and redundant ControlNet networks.
The 1756-CNBR may be installed along the ControlLogix processor as a local communication module or to any distributed I/O rack as the head communication module. It is compatible with a variety of ControlLogix rack such as 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17. It may be installed to any available slot and only requires single slot in the chassis. It mat also be used with standard and redundant power supplies such as 1756-PA72/C, 1756-PA75/B, 1756-PB72/C, 1756-PB75/B, 1756-PC75/B, 1756-PH75/B and 1756-PA75R, 1756-PB75R, 1756-PSCA2, respectively.
The 1756-CNBR communication module is backplane powered and draws 970 mA at 5.1VDC and 1.7 mA at 24VDC. It has a power dissipation of 5.1 Watts and Thermal dissipation of 17.4 BTU/hr.
Main brands include: ABB, Bailey, GE, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, EMERSON EMERSON, B&R, MOTOROLA, FUANC, REXROTH, KUKA, HONEYWELL, NI, DEIF, Yokogawa, WOODWARD WOODWARD, Ryan, SCHNEIDER SCHNEIDER, Yaskawa, MOOG, EPRO, PROSOFT and other major brands
Allen-Bradley Related Products
| 1746-OV16 | 1756-IF16 |
| 1746-OV8 | 1756-IF8 |
| 1746-OW16 | 1756-IM16I |
| 1746-OW16/C | 1756-IM16I/A |
| 1746-OX8 | 1756-IR6I |
| 1746-P1 | 1756-L1 |
| 1746-P2 | 1756-L1M2 |
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