Omron CJ1H-CPU66H Programmable Logic Controller
Omron CJ1H-CPU66H Programmable Logic Controller (PLC) is a high-capacity CPU unit built for large-scale automation requiring expanded memory and ultra-fast processing. It supports 2,560 I/O points with 40 units across 3 expansion racks, ideal for high-performance machine networks and multi-process control. Featuring 120K-step program capacity and 256K words of memory (DM: 32K words, EM: 32K words × 7 banks), it delivers precise logic execution and synchronized control. Ultra-fast 0.02 μs LD instruction execution and 0.99 A at 5 V operation ensure consistent and reliable performance. Manufactured by Omron, this model belongs to the Omron Programmable Controllers family and the CJ1 Series used in industrial automation.
| Brand | Omron |
| Product Type | Programmable Logic Controller |
| Model Number | CJ1H-CPU66H |
| Specification | Value |
|---|---|
| Program capacity | 120K steps |
| Data area memory capacity | 256k words (DM: 32K words, EM: 32K words, × 7 bank) |
| Control method | Stored program |
| I/O control method | Cyclic scan and immediate processing are both possible |
| Programming | LD (Ladder), SFC (Sequential Function Chart), ST (Structured Text), Mnemonic |
| LD execution time | 0.02 μs |
| I/O capacity | 2,560 points |
| Mountable Units | 40 points |
| Mounting method | DIN Track |
The Omron CJ1H-CPU66H is engineered for industrial automation systems demanding large-scale control and high-speed execution. Its 2,560 I/O points across three expansion racks provide seamless interfacing with sensors, actuators, and complex machine modules. With a 120K-step program capacity, the CPU unit efficiently handles advanced logic, motion coordination, and multi-process automation, making it ideal for manufacturing, packaging, and assembly line applications.
Omron CJ1H-CPU66H is widely implemented in large-scale process automation, machine control, and high-performance sequencing systems where ultra-fast response and extensive I/O capacity are required. The modular design simplifies integration into control panels, ensures organized wiring, and allows flexible expansion with optional serial and Ethernet modules. System integrators favor this unit for scalable deployment within existing Omron PLC architectures.
Stable DC power operation, robust construction, and high-speed processing make CJ1H-CPU66H suitable for continuous industrial operation under demanding conditions. Maintenance engineers benefit from its clear module layout and straightforward configuration, while OEMs, automation companies, and industrial buyers select this Omron PLC CPU unit for projects requiring large-scale I/O handling, high-capacity program execution, and long-term operational reliability in advanced automation systems.
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