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    Apter Power sources hard-to-find Allen-Bradley CompactLogix processors to support legacy control systems and extend the service life of your automation setup.

1769-L30

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The Allen-Bradley 1769-L30 CompactLogix Controller is a reliable automation solution engineered to handle small to medium-sized industrial control applications.
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Technical specifications for 1769-L30

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1769-L30
  • Product Family:
    CompactLogix
  • Product Type:
    CompactLogix Controller
  • Stock:
    1
  • Communication Ports:
    RS-232
  • User Memory:
    256K bytes
  • Maximum number of I/O modules supported:
    16 I/O modules
  • Maximum number of I/O banks supported:
    3 banks
  • Backplane Current:
    800 mA at +5V dc, 0 mA at +24V dc
  • Weight:
    0.24 kg
  • Estimated shipping dimensions:
    5.1x8.8x13.2cm
  • 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 Specifications Applications Environmental Ratings Installation & Integration

Features:

  • Central Controller for CompactLogix System Architecture and I/O Bus Management
  • Scalable Processing Power Supporting Up to 16 Local 1769 I/O Modules
  • Integrated Communication and Control Executing Across Up to 3 I/O Banks
The Allen-Bradley 1769-L30 CompactLogix Controller operates as the primary processing hub in a CompactLogix system, providing centralized logic control, execution, and data management for industrial automation routines. It continuously manages real-time tasks and coordinates signaling across the 1769 Compact I/O backplane to support steady-state operation of attached digital, analog, and specialty modules. Reliable local bus communication is built directly into the 1769-L30, enabling fast, deterministically controlled I/O scans. The 1769-L30 delivers significant processing and memory performance over earlier legacy controllers while maintaining standard modular integration within small-to-midsize machine layouts.

The Allen-Bradley 1769-L30 provides essential control functions common to the entire local assembly, serving as the critical intelligence node that directly affects the proper, normal operation of the overall automation cell. Exactly one controller is allowed per CompactLogix system. To ensure correct system topology and backplane signaling, the 1769-L30 is always located in the far-left position (the left-most module slot in the main rack). Furthermore, the 1769-L30 must be installed within four module positions of the system power supply to satisfy its power supply distance rating requirement.

For multi-bank multi-module applications, the CompactLogix System allows expansion using the Allen-Bradley 1769-L30 up to a maximum of 16 I/O modules distributed across up to 3 I/O banks (utilizing up to two 1769 expansion cables). In addition to single-bank operation, each additional I/O bank requires its own dedicated 1769 power supply to maintain adequate backplane power distribution.

The 1769-L30 Allen-Bradley CompactLogix Controller may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen-Bradley 1769-L30 CompactLogix 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.
Allen-Bradley 1769-L30 CompactLogix Controller Specs

General

  • Manufacturer Allen-Bradley
  • Model 1769-L30
  • Condition New Original ready stock
  • Product Family 1769-L20,1769-L30ER
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.
  • Material Handling & Packaging: Frequently used in conveyor networks, sorting systems, and packaging lines that require integrated motion control.
  • Food & Beverage Processing: Ideal for localized control over mixing, bottling, and batching systems.
  • Water & Wastewater Control: Deployed in remote pumping stations and treatment setups utilizing distributed EtherNet/IP networks.
  • Mining Operations: The specialized 1769-L30ER-NSE variant is engineered for mining environments where residual stored energy must be quickly depleted.
  • Integrated Safety: The GuardLogix 1769-L30ERMS variant manages safety-critical automation up to SIL 3/PLe standards.
  • Operating Temperature: 0 °C to 60 °C (32 °F to 140 °F).
  • Storage Temperature: -40 °C to 85 °C (-40 °F to 185 °F).
  • Relative Humidity: 5% to 95% non-condensing.
  • Vibration Resistance: Designed to withstand continuous physical vibrations ranging from 10 to 500 Hz.
  • Enclosure Requirements: Must be installed in an enclosure providing at least IP54 protection, especially when deployed in Zone 2 hazardous environments.
  • Physical Mounting: Supports panel mounting or standard DIN rail mounting. It must always serve as the leftmost module in the hardware stack.
  • Power Supply Distance: The controller must be installed within 4 module slots of the 1769 power supply to ensure stable backplane current.
  • Local I/O Capacity: While the legacy 1769-L30 supported up to 16 local modules across multiple banks, the modern 1769-L30ER supports up to 8 local expansion modules on a single backplane.
  • Bus Termination: A right end cap terminator (such as the 1769-ECR) is strictly required at the far end of the local I/O bank to close the passive backplane bus loop.
  • Network & Programming: Legacy units use RS-232 serial channels, while modern models feature dual EtherNet/IP ports supporting linear or Device Level Ring (DLR) network topologies. Configuration is done via USB or Ethernet using Studio 5000 Logix Designer or RSLogix 5000 software.
Description
The Allen-Bradley 1769-L30 CompactLogix Controller is a programmable automation controller designed specifically for mid-size industrial automation systems. Built to bridge the gap between small standalone machines and large-scale plant systems, the 1769-L30 is engineered to streamline machine-level control, eliminate communication bottlenecks, and deliver scalable I/O flexibility in a compact footprint. By unifying processing power and expandable bus architecture, the 1769-L30 efficiently solves space constraints, high wiring costs, and complex programming challenges across distributed control environments.

In terms of real-world application, the Allen-Bradley 1769-L30 CompactLogix Controller excels in automated packaging, material handling, conveyor networks, food and beverage processing, and discrete manufacturing environments. For example, in a high-speed sorting or cartoning line, the 1769-L30 serves as the primary intelligence hub to sequence actuators, process analog sensor signals, and maintain synchronized operational timing across multiple sub-assemblies.From an installation and system integration standpoint, the Allen-Bradley 1769-L30 CompactLogix Controller must always be positioned as the left-most module in the rack setup. 

To maintain proper power distribution and signal integrity, the 1769-L30 must be mounted within four modules of the system power supply. Integrators can expand the local system using up to 16 I/O modules across a maximum of three I/O banks connected by two expansion cables, provided each individual bank is equipped with its own power supply. Additionally, system architecture requires that only one 1769-L30 controller resides in the rack and that the end of the communication bus is terminated using a 1769-ECR (Right End Cap) or 1769-ECL (Left End Cap) module. 
Revisions

Revision Part #

Also known as

1769-L30 Ser A
1769-L30/A, Series A, Rev A
Alternative Names
1769-L3O 1769L30 1769L3O I769-L30 I769-L3O I769L30 1769-L20 1769-L30ER 1769-L30ERM
Technical notes
The Allen-Bradley 1769-L30 is designed for managing real-time distributed control and seamless device communication, effectively addressing the high integration costs and system complexity commonly found in compact mechanical equipment. The 1769-L30 integrates control and communication functions into a modular form factor, eliminating the need for large, expensive chassis architectures while providing powerful processing performance.
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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 does the 1769-L30 improve production efficiency?
The controller provides accurate machine sequencing and synchronized process control, helping improve product consistency while reducing downtime.
Where should the 1769-L30 controller be installed in a CompactLogix system?
The 1769-L30 must be installed as the left-most module in the CompactLogix assembly to ensure proper system communication.
How close should the 1769-L30 be to the system power supply?
The controller should be positioned within four module slots of the power supply to maintain reliable backplane operation.
Are expansion cables required for the 1769-L30?
Yes. When multiple I/O banks are used, expansion cables and separate power supplies are required for proper system operation.

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