1769-L33ER
1769-L33ER
1769-L33ER
1769-L33ER
1769-L33ER
1769-L33ER
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    Apter Power checks standard-versus-motion identity, firmware, SD media, and I/O-bank records before procurement.

1769-L33ER

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Mid-range distributed automation uses 1769-L33ER for standard CompactLogix 5370 control with additional memory, local I/O banks and EtherNet/IP device capacity.
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Technical specifications for 1769-L33ER

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1769-L33ER
  • Product Family:
    CompactLogix
  • Product Type:
    CompactLogix 5370 L3 EtherNet/IP Controller
  • Stock:
    1
  • User memory:
    2 MB
  • EtherNet/IP nodes:
    32 maximum
  • Local Compact I/O:
    16 modules maximum
  • Integrated motion:
    Not supported
  • Ethernet ports:
    2 ports sharing one IP address
  • Nonvolatile memory:
    1784-SD1 supplied; 1784-SD2 optional
  • Weight:
    0.31 kg
  • Estimated shipping dimensions:
    11.8x5.5x10.5cm
  • 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 Resource Budget I/O Banks Resource Review Product Applications

Features:

  • 2 MB user memory: capacity for mid-size standard control projects
  • Sixteen local modules: expanded Compact I/O bank planning
  • 32-node EtherNet/IP limit: larger distributed-device architecture
1769-L33ER sits between the entry L30ER and the motion-capable L36ERM in controller capacity.

It expands memory, local I/O, and network-node scope while remaining a standard, non-motion controller.

Good maintenance preparation preserves the SD image, firmware, node map, bank arrangement, and evidence that L33ER—not L33ERM—is required.

Availability of 1769-L33ER is subject to Apter Power inventory and sourcing confirmation.

Verified resources for 1769-L33ER:

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.

  • Nodes: count every device added directly to the I/O tree.
  • Connections: review produced tags, messages, HMIs, and module paths separately.
  • Memory: reserve space for tags, logic, alarms, and future changes.
  • Baseline: archive a verified project before network expansion.
  • Bank layout: document controller, supplies, expansion cables, and end caps.
  • Distance rating: keep every module within its power-supply limit.
  • Current: total 5 V and 24 V demand for each bank.
  • RPI: account for specialty-module effects on local update timing.
  • Node count: include every directly configured EtherNet/IP device against the 32-node limit.
  • Memory: compare the compiled 2 MB project demand with expansion and diagnostic needs.
  • Connections: review messaging, produced and consumed tags, and device connection use.
  • Change control: repeat the resource check when another adapter, drive, or communication module is added.
  • Packaging lines: coordinate standard machine logic and distributed I/O.
  • Material handling: integrate drives, sensors, and operator interfaces over EtherNet/IP.
  • Process skids: control local Compact I/O with remote device communication.
  • Cell upgrades: expand a standard Logix architecture without integrated motion.
Description
Projects that need more controller resources without integrated motion can use 1769-L33ER in the CompactLogix 5370 family. The standard controller manages logic, local Compact I/O and distributed EtherNet/IP devices while its two switched ports share one network identity.

Expansion around 1769-L33ER requires separate accounting for memory, directly configured network nodes and each local I/O bank. Power-supply placement, rail current and expansion hardware continue to govern the physical bank design even when project resources remain available.

Before 1769-L33ER is exchanged or expanded, preserve the firmware, project archive, node tree, SD image and bank drawings. Those records define whether the proposed controller and physical I/O arrangement can reproduce the approved standard-control application.
Revisions

Revision Part #

Also known as

1769-L33ER Series A
1769-L33ER/A, Series A
Alternative Names
Allen-Bradley 1769-L33ER Rockwell Automation 1769-L33ER AB 1769-L33ER 1769L33ER 1769 L33ER CompactLogix 5370 two-megabyte standard controller
Technical notes
The main selection risk for 1769-L33ER is confusing it with a motion-enabled catalog. Confirm that the validated project requires standard control only, then compare firmware, memory use and the I/O-bank design; choose the documented motion controller instead if integrated axes are part of the machine architecture.
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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.
Why can a project for 1769-L33ER compile yet refuse another directly configured EtherNet/IP device?
Audit the controller node tree and connection use, remove obsolete entries or select a larger architecture if the documented resource boundary has been reached.
What should be investigated when a new I/O bank causes 1769-L33ER to report module faults?
Check supply placement, distance rating, both rail-current budgets, expansion cable and module order before altering the application tags.
How should the two Ethernet connectors on 1769-L33ER be used when a panel needs separate plant and machine subnets?
They form one switched interface under one IP identity; use an approved external network architecture rather than assigning independent addresses to the two jacks.
Can 1769-L33ER run a project that has integrated motion axes after a controller-only substitution?
No. The standard catalog does not provide integrated motion; keep the original motion architecture or select the officially supported motion model.
Why might an SD recovery image fail to start correctly on 1769-L33ER?
Compare the image firmware, load policy and project revision with the replacement controller, and do not force a load across an unsupported mismatch.
When should application growth trigger a resource study for 1769-L33ER?
Review compiled memory, node and connection use, I/O-bank capacity and diagnostic load before adding functions that could exceed the controller design.