Schneider ALU 152 CPU Central | 40MHz 256KB PLC Processor

The ALU 152 serves as a high-performance central processing unit for Schneider PLC systems. This module executes complex user programs with minimal scan time overhead. Its rectangular frame measures 130 millimeters in width. The module height reaches 115 millimeters exactly. Depth stays at 90 millimeters. You will find this unit weighs approximately 0.68 kilograms. Therefore, installation requires a standard DIN rail clip. Two front-panel communication ports provide programming and network connectivity.

Physical Layout and Connectors

The front panel features a 4-line LCD display for system diagnostics. You will find eight push buttons for local configuration and control. One RS-232 port connects to programming software on a laptop. A second RS-485 port supports Modbus RTU network communication. A removable terminal block provides 24V DC power input connections.

Technical Specifications

Parameter	Specification
Module Width	130 mm
Module Height	115 mm
Module Depth	90 mm
Unit Weight	0.68 kg
Processor	32-bit @ 40 MHz
Program Memory	256 KB (ladder logic)
Data Memory	128 KB (retentive)
Scan Time	0.4 ms per 1K instructions
Communication Ports	RS-232, RS-485
Component Total	742 discrete parts
Internal Energy Storage	2200 µF capacitor bank
Backup Battery	Lithium (3V, 7 years)
Operating Temperature	-10°C to +60°C

Internal Design and Energy Storage

The ALU 152 contains exactly 742 discrete components inside its housing. A 2200 microfarad capacitor bank filters the main power supply input. This bank holds enough charge for 20 milliseconds after power loss. The 32-bit processor runs at 40 megahertz for fast logic execution. A lithium battery retains data memory for up to seven years. EEPROM stores the user program without any battery backup needed.

Operational Performance

This CPU executes ladder logic from 256 kilobytes of program memory. It scans 1,000 instructions in just 0.4 milliseconds. Moreover, the unit handles up to 512 digital I/O points directly. Two communication ports allow connection to HMIs, drives, and networks. The LCD display shows real-time system status and diagnostic messages. Eight buttons let you navigate menus without a programming computer. Consequently, you achieve powerful control for demanding automation tasks. Schneider designed this CPU for high-speed machine control applications. Its industrial enclosure meets IP20 protection standards for control cabinets.

In summary, the ALU 152 delivers exceptional central processing performance. Use this processor for complex machinery or production lines. It reduces scan time for faster response to field events. Order this CPU for your Schneider automation system upgrade.