One AB ALLEN BRADLEY 1762-L24BWAR -Factory Sealed- 1762L24BWAR

Allen-Bradley 1762-L24BWAR MicroLogix 1200 Controller

Overview

The 1762-L24BWAR is a MicroLogix 1200 24-point controller built for compact control systems that need the same core I/O mix as the L24BWA, but with an additional communications path.

Rockwell’s published product information describes it with 120/240V AC power, 10 standard 24V DC inputs plus 4 fast 24V DC inputs, 10 relay outputs, 6 KB memory, and 2 serial ports, including a Programming/HMI Port, while still supporting DF1, DH-485, Modbus RTU, and ASCII communications.

It is also listed as discontinued.

That extra communications capability is the real distinction that gives this controller practical value.

In real machine panels, a second serial port can reduce compromises when a controller needs to support both programming/HMI access and field communications at the same time. 

For builders and maintenance teams working on installed systems, that often means cleaner port assignment and fewer workarounds when a machine still depends on serial devices.

This is an engineering inference based on the published dual-port configuration and Programming/HMI port description.

Application Value

The 1762-L24BWAR is well suited to compact automation machines, legacy serial-network equipment, packaging cells, pump/skid systems, and utility panels where the same controller must support local programming or HMI connection alongside machine communications.

In those environments, the second serial port can be more valuable than an increase in I/O because it helps preserve the original device architecture without adding external converters or changing communications habits already built into the machine.

This is an engineering inference based on the published dual serial-port layout and the broader MicroLogix 1200 controller role.

The mechanical layout also reflects that added role.

The MicroLogix 1200 user manual shows the R variants in a wider body than the standard 24-point units, with the 24BWAR group using a 160 mm width instead of the standard 110 mm.

That makes this model especially relevant where the existing panel was originally designed around the wider R-series controller footprint.

Replacement and Selection Perspective

For replacement work, the 1762-L24BWAR should be matched by port configuration as well as I/O type. Buyers should confirm the installed catalog number, power supply, DC input signal type, relay output requirement, and whether the machine actually depends on the second serial port or the dedicated programming/HMI connection.

On older serial-based automation systems, those communications details are often what determine whether the replacement drops cleanly into service or creates unnecessary startup issues.

This is an engineering recommendation grounded in the published dual-port specification and controller I/O data.

Technical Data

FAQ

Q1: What kind of controller is 1762-L24BWAR?
It is a MicroLogix 1200 24-point controller with AC power, 14 DC inputs, 10 relay outputs, and a dual-serial-port layout.

That makes it a compact controller with more communications flexibility than the standard single-port version.

Q2: What is the practical advantage of the “R” version?
Its main advantage is the additional serial port and Programming/HMI connection.

In real machines, that can simplify access for programming, operator devices, or serial communications without forcing the user to disconnect one device to talk to another. 

This is an engineering inference based on the published two-port design.

Q3: What applications fit this model best?
It fits compact machines and serially integrated systems where the controller must handle both machine communications and local access more comfortably than a single-port controller allows.

Examples include packaging equipment, utility skids, and automation panels with operator or programming interfaces. 

This is an engineering inference based on the controller’s dual-port communications role.

Q4: Why does the wider body matter for replacement?
Because the MicroLogix 1200 manual shows the R variants in a wider physical format than the standard 24-point controllers.

If the cabinet was built around the R-series footprint, replacing it with the same mechanical style can save time and prevent panel-fit problems.

Q5: What should be checked before ordering?
Check the installed catalog number, the need for the second serial port, the existing power supply, the DC input wiring, and the relay output requirement.

Those checks usually decide whether the replacement will drop into the system without extra work.