Omron CJ2M-CPU34 Modular PLC CPU

The Omron CJ2M-CPU34 is a reliable and flexible modular PLC CPU unit, ideal for mid-range industrial control applications. It features built-in EtherNet/IP, USB programming, and support for up to 2,560 I/O points, making it perfect for multi-zone machines, conveyors, and automation lines.

With 50K program steps, 160K words of data memory, and 32K × 4 banks of extended memory, the CJ2M-CPU34 delivers the performance and scalability needed for modern manufacturing and process control. It also offers an option port for RS-232C or RS-485 communication, enabling integration with serial field devices.

Technical Specifications

Model: CJ2M-CPU34 Omron
Series: CJ2M
Product Type: Modular PLC CPU Unit
Mounting Type: DIN rail via CJ-series rack
Dimensions (W × H × D): 62 × 90 × 84.5 mm
Weight (Unpacked): 190 g
Degree of Protection: IP20
Logic Execution Speed: 0.04 µs per basic instruction

Memory & Performance

• Program Capacity: 50K steps
• Data Memory: 160K words
• Extended Memory (EM): 32K words × 4 banks
• I/O Capacity: Up to 2,560 local I/O points
• Max Number of Expansion Units: 40 (including up to 3 expansion racks)
• Built-in Digital I/O: None (modular I/O required)

Communication Interfaces

• EtherNet/IP Port: 1
• Ethernet TCP/IP Support: Yes
• USB Port: 1 (programming and diagnostics)
• Option Port: Supports optional RS-232C or RS-485 modules
• Supported Protocols: FINS, Modbus (via function blocks), Host Link, etc.
• Programming Software: CX-Programmer (via CX-One)

Electrical & Installation

• Power Supply: Provided via CJ-series power unit (sold separately)
• Cooling Method: Natural convection
• Installation: Rack-mounted with CJ-series base

Environmental Conditions

• Operating Temperature: 0 to 55°C
• Storage Temperature: –25 to +70°C
• Relative Humidity: 10% to 90% RH (non-condensing)
• Altitude: Up to 2000 m
• Vibration Resistance: Conforms to IEC 60068-2-6
• Shock Resistance: Conforms to IEC 60068-2-27

Applications

Perfect for:

• Mid-sized machine control and distributed automation
• Ethernet-based data acquisition or remote diagnostics
• Conveyor or batching systems with modular I/O
• Mixed communication environments with serial and networked devices
• OEM systems requiring performance and memory headroom

Key Features & Benefits

✅ 50K Steps Program Capacity: Sufficient for complex ladder logic applications.

✅ Built-In Ethernet & USB: Integrated communication for programming and networking.

✅ Modular I/O Flexibility: Supports up to 2,560 I/O points via CJ-series expansion.

✅ Serial Expansion Ready: Optional RS-232C/RS-485 for legacy equipment.

✅ Omron Quality: Proven architecture backed by CX-One programming suite.

📦 Available from Drive Outlet Megastore

The Omron CJ2M-CPU34 provides a perfect balance of speed, memory, and communication for flexible automation environments.

Need help choosing compatible I/O modules or configuring EtherNet/IP?
Our automation support team is here to assist.

Performance that scales. Control that delivers. Drive Outlet makes CJ2M integration easy.