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  • Lifecycle status

    Discontinued / Obsolete by OEM
    Apter Power supports documented 1768-L45 legacy replacement enquiries.

1768-L45

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Allen-Bradley 1768-L45 is a discontinued CompactLogix controller with 3 MB memory, local 1768/1769 expansion and SERCOS motion support.
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Ships by Wednesday, October 28
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Technical specifications for 1768-L45

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1768-L45
  • Product Family:
    CompactLogix
  • Product Type:
    CompactLogix L45 Controller
  • Stock:
    1
  • Controller Family:
    CompactLogix 1768
  • User Memory:
    3 MB
  • Local 1768 Capacity:
    Up to 4 modules
  • Local 1769 Capacity:
    Up to 30 modules
  • Task Capacity:
    Up to 30 tasks
  • Built-in Serial Ports:
    1
  • Motion Interface:
    1768-M04SE SERCOS
  • Maximum SERCOS Axes:
    8
  • Nonvolatile Media:
    CompactFlash card
  • Weight:
    0.34 kg
  • Tariff Code:
    Please confirm the destination before shipping
  • Country of origin:
    Singapore
  • 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 Project Recovery Hardware Planning Commissioning Product Applications

Features:

  • Machine controller: Logic, communications and motion functions share one CompactLogix project.
  • Mixed local architecture: The chassis combines 1768 modules with a defined 1769 I/O placement scheme.
  • Legacy service focus: Discontinued status makes firmware, project and spare-media control essential.
The controller is used in installed CompactLogix systems requiring local I/O, networking and coordinated SERCOS motion.

Its four-slot 1768 limit and thirty-module 1769 limit depend on correct physical placement and power-system design.

A credible replacement proves the stored project, firmware, networks, task execution, I/O and motion safety under controlled conditions.

Apter Power can help confirm the Allen-Bradley 1768-L45 CompactLogix L45 Controller and documented legacy replacement scope before quotation.
Allen-Bradley 1768-L45 CompactLogix L45 Controller Manuals,Datasheets,Link
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.
  • Project source: Secure the latest verified controller file and compare it with the running revision.
  • Firmware pair: Record controller firmware and compatible Studio or RSLogix software before replacement.
  • Media inventory: Document CompactFlash content and any startup load behavior.
  • Network record: Preserve serial, EtherNet/IP and motion communication identities used by the machine.
  • Module order: Verify the controller, power supply, 1768 modules and 1769 I/O placement.
  • Capacity check: Confirm the installed system remains within local slot and I/O module limits.
  • Power removal: De-energize the complete system before inserting or removing modules.
  • Grounding control: Follow approved ESD, enclosure and protective-earth practices during handling.
  • Safe state: Inhibit hazardous outputs and motion before the first controller download.
  • Status review: Interpret RUN, I/O, FORCE and communication indicators before enabling equipment.
  • I/O proof: Validate each module and interlock against the project and machine drawings.
  • Motion proof: Test axis direction, feedback, limits and stopping behavior at controlled speed.
  • Machine control: Executes coordinated logic and local I/O for legacy automated equipment.
  • SERCOS motion: Supports documented axis control through compatible 1768 motion modules.
  • Networked cells: Integrates controller communications with machine and supervisory devices.
  • Legacy system support: Maintains an installed CompactLogix platform while migration is engineered.
Description
1768-L45 is a CompactLogix L45 controller with 3 MB memory for machine-level logic, I/O coordination, communications and motion applications.

1768-L45 supports up to four local 1768 modules, up to thirty local 1769 modules and as many as eight SERCOS axes through approved motion modules.

1768-L45 replacement requires a verified project, firmware and software compatibility review, module-placement check and controlled proof of every I/O and motion function.
Alternative Names
1768-L45 1768L45 Allen-Bradley 1768-L45
Technical notes
1768-L45 is discontinued, making project recovery and firmware compatibility part of the spare strategy. Secure the controller file, document module placement and network identities, confirm CompactFlash content, and inhibit hazardous outputs and motion while the replacement is flashed, downloaded and tested against the original task, I/O and axis configuration.
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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.
A 1768-L45 has failed and no recent project is available. What should happen before replacement?
Recover the latest trusted file from engineering records or removable media and compare it with the machine configuration before any download.
A spare 1768-L45 rejects the controller project. Which compatibility evidence should be checked?
Compare controller firmware, programming-software version, project revision and communication-module requirements before changing hardware.
Can 1768-L45 accept thirty 1769 modules in any physical arrangement?
No. The stated capacity still depends on approved module placement, power supply design, distance rating and the complete local architecture.
Why should motion remain inhibited during 1768-L45 commissioning?
A restored project can contain different axis, feedback or limit assumptions, so controlled proof is required before motion authority returns.
What does a steady I/O fault indication on 1768-L45 require?
Compare the project I/O tree with installed modules, power, placement and network condition, then follow the official status guidance.
Is a newer CompactLogix controller a direct drop-in substitute for 1768-L45?
No. Hardware architecture, project conversion, communications, motion, wiring and safety acceptance make migration an engineering task.