The Omron C200H-CPU31-E is a programmable controller CPU unit designed for precise automation control and efficient system integration. It features a selectable built-in power supply supporting 100–120/200–240 VAC at 50/60 Hz or 24 VDC operation, with an operational voltage range of 85–132/170–264 VAC or 20.4–26.4 VDC, and a maximum power consumption of 100 VA. The unit employs ladder diagram programming with an instruction set of 172 (including 12 basic and 160 special instructions), offering instruction lengths of 1 to 4 words and 1 address per instruction. It supports multiple I/O refreshing methods—cyclic, programmed, scheduled, and zero-cross—for optimized control performance. With a memory capacity of 6,974 words (within an 8K-word memory), the Omron C200H-CPU31-E may possibly be applied across North America, Europe, Asia, and worldwide, providing reliable and flexible control for advanced industrial automation systems.