Omron CJ2M-CPU33 CJ2M Series Modular PLC CPU Unit
SKU: CJ2M-CPU33Modular PLC CPU with built-in EtherNet/IP, 64 I/O base capacity, expandable to 2560 points
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Product Overview
The Omron CJ2M-CPU33 is a mid-range modular PLC from the popular CJ2M series, designed for applications requiring flexibility and scalability. This CPU unit features built-in EtherNet/IP connectivity for seamless integration with HMIs, drives, and enterprise networks. The base unit supports 64 I/O points with expansion capability up to 2560 points using CJ series I/O modules. Its modular architecture allows you to customize the exact I/O configuration needed for your application, from simple digital I/O to specialized analog, temperature, and position control modules. The CJ2M-CPU33 is widely used in material handling, packaging, water treatment, and building automation systems where reliability and expandability are essential.
- SKU: CJ2M-CPU33
- Series: CJ2M
- Voltage: 24V
- I/O: 64 I/O
Best-Fit Applications
- Water and wastewater treatment control systems
- Material handling and sorting equipment
- Building automation and HVAC control
- Food and beverage processing machinery
- Pharmaceutical manufacturing equipment
- Automotive assembly line control
- Retrofit projects replacing older CJ1 or CQM1 systems
Buying Checklist
- Determine total I/O requirements including future expansion needs
- Select appropriate power supply unit for backplane
- Verify EtherNet/IP compatibility with existing network infrastructure
- Choose compatible I/O modules (digital, analog, special function)
- Ensure programming software license is available (CX-Programmer)
- Consider redundancy requirements for critical applications
Technical Specifications
| Series | CJ2M |
|---|---|
| Base I/O Capacity | 64 points |
| Maximum I/O Capacity | 2560 points |
| Built-in Communication | EtherNet/IP |
| Program Memory | 20K steps |
| Data Memory | 32K words |
| Power Supply | DC 24V or AC 100-240V (depending on backplane) |
| Operating Temperature | 0C to 55C |
| Mounting | Backplane modular system |
| Programming Software | CX-Programmer, Sysmac Studio |
| Expansion | Up to 3 expansion racks |
Resources & Downloads
FAQ for CJ2M-CPU33
What I/O modules are compatible with CJ2M-CPU33?
The CJ2M-CPU33 is compatible with the full range of Omron CJ series I/O modules, including digital I/O (12-64 points per module), analog I/O, temperature sensors, position control, and communication modules. This modularity allows precise customization for your application.
Can the CJ2M-CPU33 replace older CJ1M or CJ1G CPUs?
Yes, the CJ2M-CPU33 is backward compatible with CJ1 series backplanes and I/O modules in most cases. It offers improved performance, more memory, and built-in EtherNet/IP. Program conversion may be required, but the migration path is well-documented.
How many expansion racks can be connected?
The CJ2M-CPU33 supports up to 3 expansion racks, allowing significant I/O expansion. Each rack can hold multiple I/O modules, enabling the system to reach the maximum 2560 I/O point capacity.
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