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Allen-Bradley 1756-CNB

✓ In Stock

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Manufacturer: Allen Bradley - PLC
Product Type: PLC/Programmable Logic Controller
Part Number: 1756-CNB
Series: ControlLogix
UPC: 10612598174079

Description:

The 1756-CNB is a Rockwell Automation 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).


This unit does not ship with terminal blocks. Terminal blocks may be present in photographs for illustrative purposes.


Automation Stop is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with Automation Stop's 1-year warranty.

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  Warranty

We proudly offer a one year Automation Stop warranty on most products.

Rockwell Disclaimer: The product is used surplus. Automation Stop is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Automation Stop is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Automation Stop also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. Automation Stop also makes no representations as to your right to install any such firmware on the product. Automation Stop will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

The Rockwell Automation 1756-CNB or ControlNet Bridge module is an interface module used for interfacing a ControlLogix rack to ControlNet network. Compared to the Rockwell Automation 1756-CNBR module, the 1756-CNB is used in standard, non-redundant configurations. 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 being received.

Up to 64 bi-directional 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 operator needs 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 milliamperes and 1.7 milliamperes if the current draw is at 24 Volts DC. Its power dissipation is rated at 5.14 Watts.

Technical Specifications

Region of Manufacture* United States
UNSPSC 32151705
Brand Allen Bradley
Controller series ControlLogix
Type Bridge Module
Maximum Nodes 99
Data rate 5 Megabits per second
Storage Temperature minus 40° C to 85°C
Operating Temperature 0 to 60 deg C
Input Voltage 24 VDC
Rated Frequency 50-60 Hz
Weight 260 Grams

*Region of Manufacture may vary

We offer UPS shipping. Including Ground, 2nd Day Air, Next Day Air and Early AM. Some of our products have a short lead time, so please contact us if you need any item faster than the lead time shown. If you need to order an item internationally please contact us prior to checking out so we can get you a shipping quote. We can ship UPS or DHL internationally. We can also ship on your UPS or FedEx account number.
If the item is found to be defective within 30 days of the invoice date, a full refund can be issued. If an item is found to be defective through normal use and wear after 30 days but within the 1 year period, the Automation Stop Warranty dictates the appropriate course of action. After the 30 day period, Automation Stop reserves the right to decide between refund, repair, or replacement with identical product. Because of the high volume of outgoing and incoming shipments on a day to day basis, we unfortunately cannot accept returns on items ordered mistakenly or part numbers ordered incorrectly. If a special exception is approved, a 20% restocking fee will be assessed. If you have any questions please contact us at [email protected].

FAQ

Question: Does Automation Stop offer repairs on the 1756-CNB?

Answer: Yes. We offer repairs for the 1756-CNB and it comes with our 1 Year Automation Stop Warranty.


Question: What type of warranty comes with the Allen Bradley - PLC and 1756-CNB?

Answer: If you buy the 1756-CNB through Automationstop.com it comes with our 1 Year Warranty and no other warranties.


Question: Can I buy the 1756-CNB online?

Answer: Yes. Automation Stop sells the 1756-CNB online and you can check out for the quantity and condition listed available above.


Question: What is the manufacturer for the 1756-CNB?

Answer: The 1756-CNB is made by Allen Bradley - PLC.


Question: What type of product is the 1756-CNB?

Answer: The 1756-CNB is part of the ControlLogix series.


Question: What Brand is included with the Allen Bradley Automation 1756-CNB?

Answer: The Allen Bradley Automation 1756-CNB has a Allen Bradley Brand.


Question: What Controller series are included with the Rockwell Automation 1756-CNB?

Answer: The Rockwell Automation 1756-CNB has Controller series ControlLogix.


Question: What Data rate does the 1756-CNB have?

Answer: The Data rate of the 1756-CNB is 5 Megabits per second.


Question: What Input Voltage does the Allen Bradley Automation 1756-CNB have?

Answer: The 1756-CNB has a Input Voltage of 24 VDC.


Question: What Maximum Nodes does the Rockwell Automation 1756-CNB have?

Answer: The Maximum Nodes of the 1756-CNB is 99.


Question: What is the Operating Temperature of the 1756-CNB?

Answer: The 1756-CNB has a Operating Temperature of 0 to 60 deg C.


Question: What is the Rated Frequency of the 1756-CNB?

Answer: The Rated Frequency of the 1756-CNB is 50-60 Hz.


Question: What Region of Manufacture* does the Allen Bradley Automation 1756-CNB have?

Answer: The 1756-CNB has a United States Region of Manufacture*.


Question: What Storage Temperature does the Allen Bradley 1756-CNB have?

Answer: The Storage Temperature of the 1756-CNB is minus 40° C to 85°C.


Question: What is the UNSPSC of the Allen Bradley-Rockwell Automation 1756-CNB?

Answer: The Allen Bradley-Rockwell Automation 1756-CNB has a UNSPSC of 32151705.


Question: What is the Weight of the Allen Bradley 1756-CNB?

Answer: The Weight of the 1756-CNB is 260 Grams.


Series information for 1756-CNB

For additional information about 1756-CNB check the data sheet or manual. Also check the manual PDF for all wiring diagrams, compatibility, troubleshooting, specifications, installation instructions, and accessories (such as batteries, terminal blocks, or cables) regarding 1756-CNB.

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

Common Misspellings:

  • 1756-CN8
  • 175G-CNB
  • 175G-CN8
  • 17S6-CNB
  • 17S6-CN8
  • 17SG-CNB
  • 17SG-CN8
  • I756-CNB
  • I756-CN8
  • I75G-CNB
  • I75G-CN8
  • I7S6-CNB
  • I7S6-CN8
  • I7SG-CNB
  • I7SG-CN8

Automation Stop sells used surplus products. Automation Stop is not an authorized distributor, affiliate, or representative for the brands we carry. Products sold by Automation Stop come with Automation Stop’s 1-year warranty and do not come with the original manufacturer’s warranty. Designated trademarks, brand names and brands appearing herein are the property of their respective owners. This website is not sanctioned or approved by any manufacturer or tradename listed.

Rockwell Disclaimer: The product is used surplus. Automation Stop is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Automation Stop is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Automation Stop also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. Automation Stop also makes no representations as to your right to install any such firmware on the product. Automation Stop will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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