1764-24BWA | Allen Bradley | MicroLogix 1500 Series | 24 Point Base Controller

Product Description

The 1764-24BWA MicroLogix 1500 base controller from Allen Bradley is a discontinued/obsolete model designed for small-to-medium automation systems. It provides 24 integrated I/O points with flexible sink/source input circuits and relay outputs, supporting expansion up to 512 I/O points. This unit is compatible with MicroLogix 1500 processors and memory modules, making it a versatile choice for legacy systems still in operation.

Technical Specifications

• Manufacturer: Allen Bradley

• Product Line: MicroLogix 1500

• Part Number: 1764-24BWA

• Category: PLCs

• Function: Base Controller

• Module Type: Base Unit

• Integrated I/O: 12 inputs / 12 outputs

• Input Voltage: 24 VDC

• Input Circuit Type: 24 VDC sink/source

• Output Type: Relay ports

• Output Voltage Range: 24–125 VDC; 120–240 VAC

• Maximum Expanded I/O Capacity: 512 points

• Operating Frequency: 0–20 kHz

• Line Power Supply: 85–265 VAC

• Mounting Orientation: Horizontal

• Temperature Range: 32–131 °F (0–55 °C)

• Weight: 2.00 lbs (0.91 kg)

• Communication Ports: RS-232 serial

• Compatible Processors: 1764-LSP and 1764-LRP

• Memory Module Support: 1764-MM1 through MM4

• Real-Time Clock Options: 1764-RTC or 1764-MM1RTC

• Keyswitch Position: 1

• Lifecycle Status: Discontinued/Obsolete

Key Features

• 24-point base controller with balanced input/output configuration.

• Relay outputs supporting both DC and AC voltage ranges.

• Expandable architecture up to 512 I/O points.

• Compatible with multiple memory modules and RTC options.

• RS-232 communication for integration with external devices.

Application Scenarios

• Legacy automation systems requiring MicroLogix 1500 base units.

• Small machine control with mixed AC/DC output requirements.

• Environments where expansion flexibility is needed.

FAQ

Q: Is the 1764-24BWA still in production?   A: No, this model is discontinued/obsolete but remains in use in legacy systems.

Q: What processors are required for operation?  A: The unit requires either the 1764-LRP or 1764-LSP processor.

Q: How does this compare to the 1764-28BXB?  A: The 1764-24BWA offers relay outputs and 24 points, while the 1764-28BXB provides transistor outputs and a different I/O configuration.