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  • Lifecycle status

    Discontinued / Obsolete by OEM
    Apter Power checks Channel 0, memory, and relay-group records before quotation and sourcing review.

1762-L24BWA

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Channel 0 recovery and four high-speed DC inputs distinguish Allen-Bradley 1762-L24BWA, an AC-powered MicroLogix 1200 controller with ten relay outputs and local Bulletin 1762 expansion.
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Technical specifications for 1762-L24BWA

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1762-L24BWA
  • Product Family:
    MicroLogix
  • Product Type:
    MicroLogix 1200 24-Point Programmable Controller
  • Stock:
    1
  • User memory:
    6 KB
  • Digital inputs:
    4 high-speed and 10 standard, 24 V DC sinking/sourcing
  • Digital outputs:
    10 relay
  • Controller supply:
    100…240 V AC, 47…63 Hz
  • Power supply usage:
    70 VA
  • Heat dissipation:
    15.7 W
  • User sensor supply:
    24 V DC at 250 mA
  • Communication interface:
    RS-232C Channel 0
  • Supported protocols:
    DF1, DH-485, Modbus RTU, ASCII
  • Expansion capacity:
    Up to 6 Bulletin 1762 modules
  • Terminal screw torque:
    0.791 N·m
  • Operating temperature:
    -20…65 °C
  • Weight:
    0.9 kg
  • Estimated shipping dimensions:
    9 x 11 x 8.7 cm
  • Tariff Code:
    8537101190
  • 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 High-Speed Inputs Relay Output Groups Serial Recovery Product Applications

Features:

  • 24-point controller: DC input groups with ten relay outputs
  • High-speed sensing: four inputs support the documented fast counter path
  • Service interface: Channel 0 serial communication with DCOMM recovery control
1762-L24BWA supports MicroLogix 1200 equipment that needs DC sensing and relay actuation from an AC-powered controller.

Its high-speed input group, relay commons, sensor supply, and serial recovery controls have distinct roles that must be retained during service.

For discontinued-system support, the exact L24BWA suffix should remain tied to the project, firmware, memory module, serial settings, terminal schedule, expansion bank, and tested machine behavior.
Apter Power can coordinate official-document checks, quotation, and sourcing support for 1762-L24BWA.
Allen-Bradley 1762-L24BWA MicroLogix 1200 24-Point Programmable 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.
  • Fast group: use inputs 0…3 for qualified high-speed counting within the configured filter boundary.
  • Standard group: place ordinary sensor states on inputs 4…13 and account for scan-dependent response.
  • Polarity: wire the two DC input groups for the approved sinking or sourcing arrangement and verify commons at the terminals.
  • Terminal groups: map every relay common and field voltage from the official L24BWA diagram.
  • Load protection: apply qualified suppression to inductive relays, contactors, starters, and solenoids.
  • Release test: prove on, off, program, and fault behavior under representative load before returning the machine to service.
  • DCOMM control: use the communication-toggle function to distinguish a user configuration fault from a hardware communication fault.
  • Protocol record: preserve DF1, DH-485, Modbus RTU, or ASCII settings together with the correct cable and peer role.
  • Expansion bank: verify Bulletin 1762 module order and complete the system-loading worksheet before reconnecting up to six modules.
  • Compact discrete machines: monitor 24 V DC sensors and switch qualified relay loads.
  • High-speed counting: use the first input group for documented pulse or event-counting tasks.
  • Serially connected equipment: exchange controller data through the supported Channel 0 protocols.
Description
1762-L24BWA is a 24-point MicroLogix 1200 controller with an AC supply, fourteen sinking or sourcing 24 V DC inputs, and ten relay outputs. It provides a serial Channel 0 interface, status indicators, a communication-toggle control, memory-module support, and a local Bulletin 1762 expansion connection.

The first four inputs on 1762-L24BWA support the documented high-speed DC path, while the remaining ten are standard scan-dependent inputs. Relay outputs are divided into field-power groups, and the controller sensor supply is intended for input devices rather than output circuits.

Rockwell Automation marks 1762-L24BWA discontinued. A reliable sustainment or migration package should preserve the project, firmware, memory-module record, serial protocol and cable, DCOMM recovery settings, input polarity, relay terminal schedule, expansion inventory, and functional-test results before any engineering replacement is selected.
Revisions

Revision Part #

Also known as

1762-L24BWA Series A
1762-L24BWA/A, Series A
1762-L24BWA Series B
1762-L24BWA/B, Series B
1762-L24BWA Series C
1762-L24BWA/C, Series C
Alternative Names
Allen-Bradley 1762-L24BWA Rockwell Automation 1762-L24BWA AB 1762-L24BWA 1762L24BWA 1762 L24BWA MicroLogix 1200 1762-L24BWA
Technical notes
Loading calculations for 1762-L24BWA must keep the 24 V DC sensor source within its documented input-device role. Include every sensor and interface plus expansion-system demand in the power worksheet, keep relay loads independently powered, and stop startup if an output circuit depends on the controller supply.
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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 counter on 1762-L24BWA lose pulses after a sensor is moved to another input?
Confirm that the new point is within inputs 0…3, compare filter configuration and pulse width, verify sinking or sourcing polarity, and measure the signal at the terminal.
How can the DCOMM control on 1762-L24BWA help diagnose a failed serial connection?
Use the documented toggle to test the default communication configuration, then compare cable, port, baud, framing, node, and protocol settings before altering the saved application.
What should be investigated when several relay loads on 1762-L24BWA fail together?
Identify the shared output group and field supply, measure common and return voltage, inspect protection and suppression, compare commanded states, and test one qualified load at a time.
What should maintenance verify before using a memory module to restore 1762-L24BWA?
Identify the controller and memory-module records, preserve the working application, follow the documented transfer procedure, and validate I/O operation plus Channel 0 communication in a controlled state before returning the machine to run.
How should a site assess the engineering replacement path for discontinued 1762-L24BWA?
Start from the current Rockwell Automation lifecycle record, then compare program conversion, serial protocols, input voltage and speed, relay groups, expansion, enclosure, power, and validation requirements.
Which evidence should be requested before purchasing 1762-L24BWA?
Provide full nameplate and series photographs, firmware, memory-module details, project archive, serial settings and cable, expansion inventory, terminal schedule, condition, quantity, and destination.