Omron CJ1H-CPU66H High-Performance CPU Unit for CJ-Series PLC Systems
The Omron CJ1H-CPU66H is a high-performance CPU unit for the SYSMAC CJ-series programmable logic controller systems. This advanced CPU is designed for demanding automation applications requiring extensive I/O capacity, large program memory, and high-speed processing. The CJ1H-CPU66H features an I/O capacity of 2,560 points, a program capacity of 120,000 steps, and a data memory capacity of 256,000 words, making it suitable for large-scale machine automation, process control, and complex manufacturing applications requiring high processing power and extensive I/O.
Key Specifications
Model: CJ1H-CPU66H CPU Unit
Product Series: SYSMAC CJ-series CJ1H CPU Units
I/O Capacity: 2,560 points
Program Capacity: 120,000 steps
Data Memory: 256K words (DM: 32K words, EM: 32K words × 7 banks)
LD Instruction Execution Time: 0.02 μs
Processing Speed: 100,000 instructions per second
Communication Ports: 1 × RS-232C, 1 × Ethernet
Maximum Units per CPU Rack: 10 units
Maximum Expansion Racks: 3 expansion racks
Maximum Mountable Units: 40 units total
Current Consumption at 5V DC: 0.99 A
Weight: 0.17 kg (0.38 lbs)
Operating Temperature: 0°C to 55°C
Dimensions (W × H × D): 160 × 90 × 60 mm
Standards: UC1, CE, N, L
Exceptional Processing Speed
The CJ1H-CPU66H delivers exceptional processing speed with an LD instruction execution time of 0.02 μs and a processing capability of 100,000 instructions per second. This high-speed processing enables the CPU to handle large ladder logic programs, complex function blocks, and high-speed I/O updates without scan time constraints. The fast execution speed is particularly valuable for applications requiring rapid response to input changes, such as high-speed packaging machinery, assembly equipment, and motion control systems. The processing power provides headroom for future expansion and additional functionality.
Extensive I/O and Memory Capacity
The CPU supports a maximum of 2,560 I/O points, providing extensive capacity for large-scale automation applications. The CPU can accommodate up to 40 units total on the CPU rack and expansion racks combined, with a maximum of 3 expansion racks. This high I/O capacity allows the CPU to serve as the central controller for systems with numerous sensors, actuators, and field devices. The 120,000-step program memory and 256,000-word data memory support complex control logic, data logging, and recipe management for demanding automation tasks.
Built-in Ethernet and RS-232C Communication
The CJ1H-CPU66H includes built-in Ethernet and RS-232C communication ports for integration into industrial networks. The Ethernet port supports 100BASE-TX and 10BASE-T physical layers, providing compatibility with both fast Ethernet and standard Ethernet networks. The CPU supports FINS communications service for seamless data exchange with other Omron PLCs and devices across the network. The RS-232C port provides serial communication for connection to programming devices, HMIs, barcode readers, and other serial peripherals, supporting Host Link protocol for communication with host computers.
SYSMAC CJ-Series Platform Architecture
The CJ1H-CPU66H is built on the SYSMAC CJ-series platform, Omron's modular PLC system designed for machine automation and process control applications. The CJ-series offers a wide range of CPU units, I/O modules, communication units, and special function modules, allowing users to configure controllers precisely for their application requirements. The platform supports a maximum of 40 units per system when using appropriate power supply units, providing scalability from small standalone machines to larger distributed systems. The common programming environment across the CJ-series simplifies engineering and training.
Industrial Applications
The Omron CJ1H-CPU66H CPU unit is deployed across a wide range of industrial automation applications requiring high I/O capacity and complex control logic. In manufacturing, it controls assembly lines, packaging machinery, and material handling systems. In process control, it manages batch processes, temperature regulation, and flow control. In machine automation, it coordinates multi-axis motion control, robotics, and inspection equipment. The CPU's combination of high I/O capacity, fast processing speed, and extensive memory makes it suitable for demanding applications in automotive, food and beverage, pharmaceutical, and general manufacturing industries.
Conclusion
The Omron CJ1H-CPU66H high-performance CPU unit provides 2,560 I/O points, 120K steps program memory, 256K words data memory, and 0.02 μs processing speed for CJ-series PLC systems. Its built-in Ethernet and RS-232C communication, extensive memory capacity, and scalable architecture make it a versatile solution for demanding industrial automation applications requiring high processing power.
