AB 1756-L63
AB 1756-L63
AB 1756-L63
AB 1756-L63
AB 1756-L63
AB 1756-L63
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  • Lifecycle status

    Discontinued
    Discontinued date: 2017-06-01
    Replacement category: Functional Replacement

1756-L63

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Allen-Bradley 1756-L63 is a discontinued ControlLogix controller with 8 MB memory for legacy chassis-based Logix control systems.
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Technical specifications for 1756-L63

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1756-L63
  • Product Family:
    ControlLogix
  • Product Type:
    ControlLogix 8 MB Memory Controller
  • Stock:
    1
  • Memory:
    8 MB
  • Nonvolatile memory option:
    CompactFlash
  • Available firmware documented:
    version 20.019
  • Built-in local communication:
    One RS-232 serial port
  • Local communication:
    RS-232 serial port
  • Programming cable:
    1756-CP3 or 1747-CP3 serial cable
  • Operating temperature:
    0 to +60°C
  • Storage temperature:
    -40 to +85°C
  • Relative humidity:
    5 to 95%, noncondensing
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Memory & Media Firmware Redundancy Application
  • 8 MB controller memory for legacy ControlLogix projects
  • CompactFlash is the documented nonvolatile-memory option
  • Firmware support on Rockwell’s product record is listed through version 20.019

1756-L63 is an Allen-Bradley ControlLogix controller for legacy chassis-based Logix automation systems.

Its 8 MB memory class and CompactFlash option make the controller identity, approved project revision, and retained media central to a replacement decision.

Before commissioning, reconcile the installed Series, firmware, chassis layout, communications, redundancy role, and backed-up application with the original controller record.

Availability, condition, price, and shipping time for 1756-L63 are confirmed during quotation.

Allen-Bradley 1756-L63 ControlLogix Controller Manuals, Product Family, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • Keep the 8 MB controller class aligned with the validated application project
  • Verify the CompactFlash media and approved recovery method separately from the controller body
  • Do not overwrite a recoverable legacy project before obtaining a validated backup
  • Use only firmware releases documented for 1756-L63
  • Check every installed module for compatibility with the retained controller revision
  • Review motion, redundancy, and communication dependencies before an upgrade
  • Identify whether the installed controller is part of a redundant pair
  • Match the controller pair and redundancy firmware kit to the documented architecture
  • Do not use chassis fit as proof of redundant-system compatibility
  • ControlLogix automation projects using the documented 8 MB controller class
  • Redundant ControlLogix architectures explicitly configured for 1756-L63
  • Licensed Advanced Process Control projects using documented IMC, CC, or MMC instructions
Description
1756-L63 is an Allen-Bradley ControlLogix 8 MB Memory Controller for a ControlLogix chassis.

Rockwell Automation identifies 8 MB memory, CompactFlash nonvolatile storage, and firmware availability through version 20.019 for this controller.

Confirm the installed Series, controller firmware, chassis, communication modules, CompactFlash media, battery arrangement, and saved Logix project before replacing a legacy controller.
Revisions

Revision Part #

Also known as

1756-L63 Ser A
1756-L63/A, Series A, Rev A
1756-L63 Ser B
1756-L63/B, Series B, Rev B
Alternative Names
1756-L63 1756 L63 1756L63 Allen-Bradley 1756-L63 Allen-Bradley ControlLogix 1756-L63 ControlLogix 1756-L63
Technical notes
1756-L63 is available in Series A and Series B configurations. Verify the complete nameplate series because minimum RSLogix 5000 requirements, compatible batteries, CompactFlash use and firmware compatibility differ before transferring the project.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How much application and I/O memory does Allen-Bradley 1756-L63 provide?
Allen-Bradley 1756-L63 provides 8 MB of data and logic memory plus 478 KB of I/O memory. Confirm the available memory against the size of the existing project before replacement or migration.
Which CompactFlash cards can be used with Allen-Bradley 1756-L63?
Allen-Bradley 1756-L63 supports the 1784-CF64 and 1784-CF128 Industrial CompactFlash cards for nonvolatile project storage. Confirm the controller series and firmware before loading or restoring a CompactFlash image.
Can Allen-Bradley 1756-L63 be installed with a 1756-L7x controller in the same redundant chassis?
No. When two controllers are installed in one redundant chassis, they must belong to the same controller family. Allen-Bradley 1756-L63 is an L6x controller and must not be mixed with an L7x controller in that chassis.
What happens if Allen-Bradley 1756-L63 is removed from a powered ControlLogix chassis?
Allen-Bradley 1756-L63 can be removed while chassis power is present, but devices owned by the controller enter their configured fault states. Repeated removal under power can also wear the module and backplane contacts, so the process impact must be controlled before removal.
How should a suspected failure of Allen-Bradley 1756-L63 be confirmed before replacement?
Cycle power to the ControlLogix chassis and check the controller status indicators. Rockwell specifies that a controller showing a solid red OK indicator after the power cycle may require replacement; otherwise, diagnose the displayed fault before replacing the 1756-L63.
How should the application be restored after replacing Allen-Bradley 1756-L63?
Restore the verified RSLogix 5000 project or an approved CompactFlash image only after matching the replacement controller’s catalog number, series and firmware. Confirm the communication path, review controller faults and verify the application before returning the 1756-L63 to Run mode.
What should be confirmed before keeping Allen-Bradley 1756-L63 in an operating system?
Confirm manufacturer support, firmware availability, spare strategy, project recovery method, compatible modules, and a documented migration path before relying on Allen-Bradley 1756-L63 for continued operation.