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CJ2M-CPU33

Omron CJ2M-CPU33 PLC CPU Unit 20K Steps EtherNet/IP USB Built-in

SKU: CJ2M-CPU33

USD 330.00

Omron CJ2M-CPU33 is a CJ2M series PLC CPU unit with 20K program capacity, built-in EtherNet/IP and USB ports for machine automation and process control applications.

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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
  • I/O: 2560 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

Model CJ2M-CPU33
Series CJ2M
Type PLC CPU Unit
Program Capacity 20K steps
Data Memory 32K words
Built-in Ports EtherNet/IP, USB
Max I/O Points 2560 points
LD Instruction Time 0.04μs
Motion Control 2-axis pulse I/O (with module)
High-Speed Counter 100kHz 2-axis
Interrupt Inputs 4 points
Expandable Units Up to 40 units
Battery Life 5 years at 25°C
Operating Temperature 0 to +55°C
Mounting DIN rail or panel
Dimensions 90 x 65 x 80mm
Mass Approx. 280g

FAQ for CJ2M-CPU33

What are the main differences between CJ2M-CPU31/32/33/34/35?
The main difference is program capacity: CPU31=5K, CPU32=10K, CPU33=20K, CPU34=30K, CPU35=60K steps. All have built-in EtherNet/IP and USB. Choose based on your program size requirements and future expansion needs.
Can I use existing CJ1 modules with this CJ2M CPU?
Yes, the CJ2M is fully compatible with all existing CJ1 I/O units, control units, and communication modules. This makes it ideal for upgrading existing CJ1 systems without replacing all modules.
What software do I need to program this PLC?
CX-Programmer (part of CX-One suite) is required for ladder logic programming. For structured text or function block, use CX-Programmer with appropriate options. Sysmac Studio can also be used for newer projects.
Is this PLC suitable for motion control applications?
Yes, with optional pulse I/O modules, the CJ2M can control up to 4 axes of stepper or servo motors. For more advanced motion control, consider the NJ series machine automation controllers with integrated motion.
How do I connect this PLC to an HMI or SCADA system?
Use the built-in EtherNet/IP port for modern HMI/SCADA connections. For legacy systems, add a serial communication module (RS-232C/RS-422/RS-485) for Modbus RTU or Host Link protocol connections.

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