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ControlLogix SERIES

Allen-Bradley ControlLogix 1756-L Controllers

1756-L ControlLogix processors — flagship Logix CPUs.

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Part of the Allen-Bradley ControlLogix family.

Overview

1756-L ControlLogix controllers are the flagship CPUs in the Logix family, supporting redundancy, motion, safety and process on the same backplane.

Within the Allen-Bradley ControlLogix line, ControlLogix 1756-L Controllers part numbers carry the 1756-, 1756-HIST, 1756-RM and 1756-L prefixes. Palm Parts Solution catalogues 62 distinct ControlLogix 1756-L Controllers part numbers, including 1756-RM, 1756-BA1, 1756-BA2 and 1756-CFM.

The catalogued part numbers are classified across 4 product types: PLC CPUs & Processors (41), Modular PLCs (19), DeviceNet / CANopen Modules (1) and EtherNet/IP Modules (1).

Ratings, physical format and revision level differ from one ControlLogix 1756-L Controllers part number to the next; the individual product page carries the data recorded for that specific item.

ControlLogix 1756-L Controllers parts

Specifications

AttributeDetail
ManufacturerAllen-Bradley
Product familyControlLogix
SeriesControlLogix 1756-L Controllers
Part-number prefixes1756-, 1756-HIST, 1756-RM, 1756-L
Distinct part numbers catalogued62
Product types represented4
ConditionNew, Refurbished, or Surplus (varies by listing)

Part numbers by product type

  • PLC CPUs & Processors — 41 part numbers catalogued (e.g. 1756-L55, 1756-L61, 1756-L62, +38 more)
  • Modular PLCs — 19 part numbers catalogued (e.g. 1756-RM, 1756-BA1, 1756-BA2, +16 more)
  • DeviceNet / CANopen Modules — 1 part number catalogued (e.g. 1756-DNB-E)
  • EtherNet/IP Modules — 1 part number catalogued (e.g. 1756-DHRIO)

How to read these part numbers

Every item in this series is listed under its full Allen-Bradley part number, so the 1756-, 1756-HIST and 1756-RM reference on the nameplate is the reference to search. Where a part number exists in more than one hardware or firmware revision, the revision recorded for the item appears on its product page. Specifications not recorded in our catalogue for a given part number are confirmed with the sourcing team before quoting.

More from this series

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Related knowledge

Frequently asked questions

What does the ControlLogix 1756-L Controllers series include?

The ControlLogix 1756-L Controllers series is part of the ControlLogix family from Allen-Bradley. It groups related catalog numbers that share form factor, I/O type and communication protocol — making it easy to find drop-in replacements.

Is ControlLogix 1756-L Controllers compatible with newer Allen-Bradley hardware?

In most cases yes. ControlLogix 1756-L Controllers units interoperate with current Allen-Bradley programming software and communication backbones. Contact us with your firmware revision and we will confirm before shipping.

Can I get ControlLogix 1756-L Controllers parts refurbished with warranty?

Yes. We offer refurbished ControlLogix 1756-L Controllers modules tested to OEM specs with a 1-year replacement warranty. New surplus stock is also available when supply permits.

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Palm Parts Solution sells used surplus products. Palm Parts Solution is not an authorized distributor, affiliate, or representative for the brands we carry. Products sold by Palm Parts Solution come with Palm Parts Solution'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.

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