The Omron CS1H-CPU66H Programmable Logic Controller (PLC) delivers strong performance with 5,120 I/O bits, a flexible 120 kSteps program capacity, and 256 kWords data memory for medium-to-large automation systems. Offering fast 0.02 Β΅s instruction processing and built-in Peripheral and RS-232C ports, it ensures reliable machine communication and expansion support. Compatible with Inner Boards and Serial Communication Boards, it handles complex control tasks and supports up to 7 Expansion Racks. Manufactured by Omron, part of the Omron Programmable Logic Controller line under the Omron CS1 Series.