1756-CNB

 
 
 
 
 
Rated 5 with 9 reviews

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1756-CNB

Revisions: Ser A Ser B Ser C Ser D Ser E 
Description: Allen Bradley ControlLogix Bridge Module with 99 Maximum Nodes
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Description:

Allen Bradley ControlLogix Bridge Module with 99 Maximum Nodes



Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via DHL, UPS, Fedex, and TNT
Repairs: We offer repair service for the 1756-CNB.
Exchange: Exchange credit for your defective unit available.

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Rated 5 with 9 reviews

    Technical Specifications for 1756-CNB

ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.1756-CNB
SeriesControlLogix
Module TypeBridge Module
Maximum Nodes99
Maximum Connections64
ControlNet Communication Rate5 megabits-second
Configuration Standard
Input Current970 milliamps at 5.1 Volts DC, 1.7 milliamps at 24 Volts DC
Thermal Dissipation17.4 BTU per Hour
Power Dissipation5.1 Watts
Slot width1
Weight0.57 pounds (0.26 kilograms)
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.1756-CNB
SeriesControlLogix
Module TypeBridge Module
Maximum Nodes99
Maximum Connections64
ControlNet Communication Rate5 megabits-second
Configuration Standard
Input Current970 milliamps at 5.1 Volts DC, 1.7 milliamps at 24 Volts DC
Thermal Dissipation17.4 BTU per Hour
Power Dissipation5.1 Watts
Slot width1
Weight0.57 pounds (0.26 kilograms)

About 1756-CNB

The Allen-Bradley 1756-CNB or ControlNet Bridge module is an interface module used for communicating within a ControlNet network. Compared to the Allen-Bradley 1756-CNBR module, the 1756-CNB uses a standard, or non-redundant, configuration. This module is perfect if the users’ applications have 40 to 48 Logix communication connections per communication module. It has a communication rate of 5 megabytes per second and it has 99 nodes available. The 1756-CNB module handles 2 things, namely the control of I/O data when it is used with a Logix5550 controller for scheduled data and for unscheduled data, bridging data between the ControlLogix backplane and the ControlNet Network. Make sure that the path information is correct in order to properly route the messages it receives.
Up to 64 bidirectional connections with other ControlNet devices can be supported by the 1756-CNB module. It can be a mix of both scheduled and unscheduled connections. However, the number of supported connections also depends on the network configuration. If an application needs more connections, the users can add another 1756-CNB module, but they must make sure to do it in the same chassis and on the same network as the first module. It can also support up to 20 buffers for unconnected messages. It also has 2 ports - 1 ControlNet BNC port and 1 ControlNet RJ45 port. The users need to set the module's node address switches first when installing the 1756-CNB module. They can select a unique node address from 01 to 99. The users can then use the module as a standalone control module by using 1 set of modules or as a redundant control setup by using identical pairs of modules (partners). Note that when using redundant control, the node address switches should have the same node address. The 1756-CNB current draw at 5.1 Volts DC is 970 milliamps and 1.7 milliamps if the current draw is at 24 Volts DC. Its power dissipation is rated at 5.14 Watts.

FAQ for 1756-CNB

Question: How much power dissipation does the 1756-CNB have?

Answer: The 1756-CNB's power dissipation is 5.14 Watts.

 

Question: How many ports does the 1756-CNB have?

Answer: The 1756-CNB has 2 ports/

 

Question: How many nodes does the 1756-CNB have?

Answer: The 1756-CNB has 99 nodes.

Repair Services for 1756-CNB

Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote
Our highly skilled technicians can repair your ControlLogix 1756-CNB. All our repairs come with a 1 Year Warranty. Please contact us for additional information about our repair process.

Revisions for 1756-CNB

Please refer to the manual for more information about the 1756-CNB such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1756-CNB Ser A
1756-CNB/A, Series A, Rev A Request Quote
1756-CNB Ser B
1756-CNB/B, Series B, Rev B Request Quote
1756-CNB Ser C
1756-CNB/C, Series C, Rev C Request Quote
1756-CNB Ser D
1756-CNB/D, Series D, Rev D Request Quote
1756-CNB Ser E
1756-CNB/E, Series E, Rev E Request Quote
Common misspellings:
  • l756-CNB
  • 1756-CN8
Technical Specifications
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.1756-CNB
SeriesControlLogix
Module TypeBridge Module
Maximum Nodes99
Maximum Connections64
ControlNet Communication Rate5 megabits-second
Configuration Standard
Input Current970 milliamps at 5.1 Volts DC, 1.7 milliamps at 24 Volts DC
Thermal Dissipation17.4 BTU per Hour
Power Dissipation5.1 Watts
Slot width1
Weight0.57 pounds (0.26 kilograms)
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.1756-CNB
SeriesControlLogix
Module TypeBridge Module
Maximum Nodes99
Maximum Connections64
ControlNet Communication Rate5 megabits-second
Configuration Standard
Input Current970 milliamps at 5.1 Volts DC, 1.7 milliamps at 24 Volts DC
Thermal Dissipation17.4 BTU per Hour
Power Dissipation5.1 Watts
Slot width1
Weight0.57 pounds (0.26 kilograms)
About

The Allen-Bradley 1756-CNB or ControlNet Bridge module is an interface module used for communicating within a ControlNet network. Compared to the Allen-Bradley 1756-CNBR module, the 1756-CNB uses a standard, or non-redundant, configuration. This module is perfect if the users’ applications have 40 to 48 Logix communication connections per communication module. It has a communication rate of 5 megabytes per second and it has 99 nodes available. The 1756-CNB module handles 2 things, namely the control of I/O data when it is used with a Logix5550 controller for scheduled data and for unscheduled data, bridging data between the ControlLogix backplane and the ControlNet Network. Make sure that the path information is correct in order to properly route the messages it receives.
Up to 64 bidirectional connections with other ControlNet devices can be supported by the 1756-CNB module. It can be a mix of both scheduled and unscheduled connections. However, the number of supported connections also depends on the network configuration. If an application needs more connections, the users can add another 1756-CNB module, but they must make sure to do it in the same chassis and on the same network as the first module. It can also support up to 20 buffers for unconnected messages. It also has 2 ports - 1 ControlNet BNC port and 1 ControlNet RJ45 port. The users need to set the module's node address switches first when installing the 1756-CNB module. They can select a unique node address from 01 to 99. The users can then use the module as a standalone control module by using 1 set of modules or as a redundant control setup by using identical pairs of modules (partners). Note that when using redundant control, the node address switches should have the same node address. The 1756-CNB current draw at 5.1 Volts DC is 970 milliamps and 1.7 milliamps if the current draw is at 24 Volts DC. Its power dissipation is rated at 5.14 Watts.

FAQ

Question: How much power dissipation does the 1756-CNB have?

Answer: The 1756-CNB's power dissipation is 5.14 Watts.

 

Question: How many ports does the 1756-CNB have?

Answer: The 1756-CNB has 2 ports/

 

Question: How many nodes does the 1756-CNB have?

Answer: The 1756-CNB has 99 nodes.

Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote
Our highly skilled technicians can repair your ControlLogix 1756-CNB. All our repairs come with a 1 Year Warranty. Please contact us for additional information about our repair process.
Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote
Our highly skilled technicians can repair your ControlLogix 1756-CNB. All our repairs come with a 1 Year Warranty. Please contact us for additional information about our repair process.
Revisions

Please refer to the manual for more information about the 1756-CNB such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1756-CNB Ser A
1756-CNB/A, Series A, Rev A Request Quote
1756-CNB Ser B
1756-CNB/B, Series B, Rev B Request Quote
1756-CNB Ser C
1756-CNB/C, Series C, Rev C Request Quote
1756-CNB Ser D
1756-CNB/D, Series D, Rev D Request Quote
1756-CNB Ser E
1756-CNB/E, Series E, Rev E Request Quote

Common misspellings:
  • l756-CNB
  • 1756-CN8
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