The Omron C200HW-PA204R PLC Power Supply Unit converts a 100 to 240 VAC input into 5 VDC at 4 A for powering compatible modules within C200H-series Programmable Logic Controller systems. It provides the regulated DC supply required by rack modules, CPU units, and associated control components within the controller architecture. A remote run-output contact provides an interface for monitoring controller operating status as part of the automation system. The unit supports rack-based machine and process-control installations where multiple PLC components depend on a common power source. The C200HW-PA204R supports the C200HW control architecture and belongs to the PLC power supply range associated with Omron industrial control systems.