The Omron CPU Programmable Controller CQM1-CPU21 is a compact yet powerful control unit designed for a wide range of industrial automation applications. It supports a maximum input/output point count of 128, offering considerable flexibility for system expansion. The controller features a program capacity of 3.2k program steps and 1k byte of data memory, providing sufficient storage for medium-scale control tasks. It includes 16 DC 24V input points for direct sensor and switch interfacing, and is equipped with an RS232 port to facilitate communication with external devices such as HMIs, computers, or other controllers. The unit does not support analog settings, pulse input/output, or ABS/F functions, making it suitable for applications focused on discrete control rather than motion or analog processing.

Building on the CQM1 series, the CQM1H model enhances the system with a flexible configuration that adds significant value to machine control functionality. Its compact design integrates a variety of features ideal for decentralized control architectures. As mechanical control systems increasingly demand advanced functions and faster processing speeds, the CQM1H delivers a well-rounded solution as a compact PLC capable of achieving high-value-added machine control in industries such as transport and decentralized automation. The CQM1H also offers upgradeability through various optional internal boards, ensuring adaptability to evolving system requirements. With large program capacity and memory units, along with software development capabilities in the Windows environment, the CQM1H is well-suited for packaging systems. Additionally, it supports the HACCP (Hazard Analysis and Critical Control Points) process standard, making it applicable in industries where hygiene and process control are critical.