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  • Lifecycle status

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

1756-L65

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Allen-Bradley 1756-L65 is a ControlLogix 5560 controller designed to execute large Logix applications and coordinate distributed I/O through chassis communication modules.
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Technical specifications for 1756-L65

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1756-L65
  • Product Family:
    ControlLogix
  • Product Type:
    ControlLogix 32 MB Memory Controller
  • Stock:
    1
  • Memory:
    32 MB
  • Firmware listed:
    20.019
  • I/O memory:
    478 KB
  • Compatible CompactFlash card:
    1784-CF128
  • Local communication:
    One RS-232 serial port
  • Recommended RS-232 cable:
    1756-CP3
  • Compatible battery:
    1756-BA2 for Series B hardware
  • Minimum RSLogix 5000 / Studio 5000 version:
    17.01.02 or later
  • Controller connections supported:
    250 maximum
  • Weight:
    0.35 kg
  • 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 Capacity Firmware Context Lifecycle Planning Application
  • 32 MB user memory, the largest published capacity in the ControlLogix 5560 controller range
  • Series B requires RSLogix 5000 version 17.01.02 or later
  • Supports up to 250 controller connections and optional 1784-CF128 CompactFlash media

1756-L65 is the high-capacity ControlLogix 5560 controller for archived applications that require the 32 MB user-memory class.

The Series B hardware uses a 1756-BA2 battery, an RS-232 service port and optional CompactFlash storage.

Confirm actual project memory use and controller connections before selecting a migration target.

Availability, condition, price, and shipping time for 1756-L65 are confirmed during quotation.

Allen-Bradley 1756-L65 ControlLogix 5560 Controller Manuals, Datasheets, 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.

  • Confirm that the application requires the 32 MB user-memory class of 1756-L65
  • Keep the separate 478 KB I/O-memory allocation in the project review
  • Check the published limit of up to 250 controller connections against the installed architecture
  • 1756-L65/B requires RSLogix 5000 version 17.01.02 or later
  • Record the installed firmware and resolve project-conversion messages before download
  • Confirm the RS-232 programming path and required 1756-CP3 cable
  • Rockwell Automation lists 1756-L65 as discontinued with a functional-replacement category
  • The current official 1756-L65 product record does not identify a successor catalog number
  • Confirm that a migration target can accommodate the 32 MB project, chassis modules and connection architecture
  • Large legacy ControlLogix applications requiring the 32 MB 1756-L65 memory class
  • Chassis systems using extensive controller connections and separate communication modules
  • Modernization projects that must preserve a high-capacity Series B Logix application and chassis inventory
Description
1756-L65 is an Allen-Bradley ControlLogix 5560 controller intended for large, chassis-based machine and process control applications.

It executes complex Logix projects and coordinates distributed I/O, communication networks and supported motion equipment through modules selected for the ControlLogix chassis.

Before service or replacement, preserve the validated controller project and confirm the hardware series, firmware compatibility, chassis arrangement, communication modules, I/O ownership and nonvolatile recovery method.
Revisions

Revision Part #

Also known as

1756-L65 Ser B
1756-L65/B, Series B, Rev B
Alternative Names
1756-L65 1756 L65 1756L65 Allen-Bradley 1756-L65 Rockwell Automation 1756-L65 ControlLogix 1756-L65
Technical notes
1756-L65/B requires RSLogix 5000 version 17.01.02 or later and uses a 1756-BA2 battery; verify the 32 MB project, controller-connection count, CompactFlash image and RS-232 service path before migration.
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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.
Can Allen-Bradley 1756-L65 operate as part of a redundant ControlLogix system?
Yes. Allen-Bradley 1756-L65 is supported by specified ControlLogix redundancy releases. The partner chassis must use a compatible redundancy bundle with matching module types, slot positions and firmware revisions before synchronization.
Which programming-software baseline applies to Allen-Bradley 1756-L65/B?
Rockwell Automation specifies RSLogix 5000 version 17.01.02 or later; the saved project must also match the installed firmware.
Does Allen-Bradley 1756-L65 include its optional CompactFlash card?
Do not assume so. The documented 1784-CF128 card is optional and should be listed separately in the quotation if required.
Can Allen-Bradley 1756-L65 be substituted for a GuardLogix safety controller?
No. Allen-Bradley 1756-L65 is a standard ControlLogix 5560 controller and does not provide the safety task, safety signature or safety-partner functions of a GuardLogix controller. It must not replace a safety controller in a validated safety application.
Why must controller connections be reviewed when replacing Allen-Bradley 1756-L65?
The controller supports up to 250 connections, but the replacement design must also match the installed communication modules, produced and consumed tags and chassis architecture.
Why can Allen-Bradley 1756-L65 report unresponsive I/O after a controller replacement?
The restored project expects its I/O modules at defined chassis slots and network paths. A mismatched communication module, slot assignment, device address, module revision or electronic-keying setting can prevent the 1756-L65 from establishing ownership even when the controller project has loaded successfully.
What should be captured before removing Allen-Bradley 1756-L65?
Save the complete project, firmware revision, memory use, controller connections, CompactFlash image status, RS-232 configuration and full chassis inventory.