Systems Electronics Group M4500 PLS PLC Chassis Processor

Systems Electronics Group M4500 PLS PLC chassis processor is a modular 4-slot chassis designed for high-speed industrial machine control and automation. It provides programmable control and programmable limit switch functions in industrial environments, and is commonly installed in packaging equipment, production machinery, converting lines, and process control applications. Key specs include a high-performance industrial CPU, power requirements of 5 VDC, ±12 VDC, and a current rating of 2.0 A, plus 32 KB battery-backed user memory and 8 KB data memory. The unit uses an RS-232 serial port for communication and is back-panel mounted; compatible modules cover digital I/O, analog I/O, communication, and resolver boards, with optional features such as an integrated programmable limit switch and a display keypad. Common replacements include Systems Electronics Group M4501, M4508, and M4510.