Input Module
Allen-Bradley ControlLogix Communication Module 1756-CNB With Good Price In Stock

Allen-Bradley ControlLogix Communication Module 1756-CNB With Good Price In Stock

Model: 1756-CNB

$1.00

Supplier: Allen-Bradley

Categories: Input Module

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Product Description

Allen-Bradley ControlLogix Communication Module 1756-CNB With Good Price In Stock


The 1756-CNB is an Allen-Bradley communication adapter that functions as a ControlNet Bridge. It is provided with an integrated ControlNet interface such as One (1) BNC connector for non-redundant media operation and One (1) NAP (RJ-45 8-pin with shield).


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
ConfigurationStandard
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
UPC10612598174079
Weight0.57 pounds (0.26 kilograms)
UNSPSC32151705

About 1756-CNB

The Allen-Bradley 1756-CNB or ControlNet Bridge module is an interface module used for interfacing a ControlLogix rack to ControlNet network. Compared to the Allen-Bradley 1756-CNBR module, the 1756-CNB is used in standard, non-redundant configuration. This module is perfect if the user 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.

The 1756-CNB is a ControlLogix Communication adapter used for interfacing any ControlLogix rack to a ControlNet data Highway. This module a single slot module with integrated communication ports of One (1) BNC connector for non-redundant media operation and One (1) NAP (RJ-45 8-pin with shield).

This ControlNet bridge is compatible with ControlNet modules from Allen-Bradley platforms such as Flex IO system, POINT IO, SLC and PLC5 ControlNet, ControlNet interface cards, encompass partner modules.

It may be used to implement Distributed I/O application where a large number of rack containing ControlLogix I/O modules are installed. It may also be used to bridge across networks of different protocols and Exchange information over ControlNet network. In a ControlNet system, connection to a single ControlNet bridge module allows a direct path to the main controller in the network where program modifications and tests may be executed. Also, this protocol may also be used to interface with Human Machine Interface (HMI) and Supervisory Control and Data Acquisition (SCADA) applications.

This module must be defined using Studio 5000 Logix Designer or RSLogix 5000 programming software. Either software, the module’s parameters may be modified such as the module’s general properties including Revision and electronic keying options, Connection properties such as Request for Packet Interval, Module inhibition and Controller reaction in the event of communication failure. It is also capable of implementing self-diagnostics by accessing the module’s online backplane connection which displays connection properties and error counters. The module’s front panel is also provides with a textual display that cyclically changes to display the module name, connection status, node address and other parameters.

Allen-Bradley ControlLogix Communication Module 1756-CNB With Good Price In Stock


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Allen-Bradley ControlLogix 4 Point A/O I or V Module 1756-OF41756-OF4
Allen-Bradley ControlLogix 8 Pt 12/24V DC D/O Module 1756-OB81756-OB8
Allen-Bradley ControlLogix 32 Pt 12/24V DC D/O Module 1756-OB321756-OB32
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Allen-Bradley ControlLogix Empty Slot Cover 1756-N21756-N2
Allen-Bradley ControlLogix 8 Axis SERCOS Servo Module 1756-M08SE1756-M08SE
Allen-Bradley GuardLogix Safety Partner 1756-LSP1756-LSP
Allen-Bradley ControlLogix 40MB controller 1756-L85E1756-L85E
Allen-Bradley Guardlogix 5580 Controller 1756-L84ES1756-L84ES
Allen-Bradley ControlLogix 20MB controller 1756-L84E1756-L84E
Allen-Bradley ControlLogix 10MB controller 1756-L83E1756-L83E
Allen-Bradley ControlLogix 5MB controller 1756-L82E1756-L82E
Allen-Bradley ControlLogix 3MB controller 1756-L81E1756-L81E
Allen-Bradley Logix L7SP SIL 3 PLe Safety Partner 1756-L7SP1756-L7SP
Allen-Bradley ControlLogix 32 MB Controller 1756-L751756-L75
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Allen-Bradley Logix 5573S Automation Controller 8M/4M 1756-L73S1756-L73S
Allen-Bradley ControlLogix 8 MB Controller 1756-L731756-L73
Allen-Bradley Logix 5572S Automation Controller 4M/2M 1756-L72S1756-L72S
Allen-Bradley ControlLogix 4 MB Controller 1756-L721756-L72
Allen-Bradley ControlLogix 2 MB Controller 1756-L711756-L71
Allen-Bradley ControlLogix 8 MB Memory Controller 1756-L631756-L63
Allen-Bradley GuardLogix 4 MB Standard Mem Controller 1756-L62S1756-L62S
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Allen-Bradley ControlLogix 32 Pt 12/24V DC D/I Module 1756-IB321756-IB32
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Allen-Bradley POINT I/O 8 Point Digital Output Module 1734-OB8E1734-OB8E
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Allen-Bradley POINT I/O 4 Point Digital Output Module 1734-OB4E1734-OB4E
Allen-Bradley POINT I/O 4 Point Digital Output Module 1734-OB41734-OB4
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Allen-Bradley POINT I/O 8 Point Digital Input Module 1734-IV81734-IV8
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Allen-Bradley POINT I/O 4 Point Analog Input Module 1734-IE4C1734-IE4C
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Allen-Bradley POINT I/O 4 Point Digital Input Module 1734-IB41734-IB4
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