Omron CJ2M-CPU34 PLC CPU Unit 30K Steps EtherNet/IP USB Built-in
SKU: CJ2M-CPU34USD 340.00
Omron CJ2M-CPU34 is a CJ2M series PLC CPU unit with 30K program capacity, built-in EtherNet/IP and USB ports for medium-scale machine automation.
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Product Overview
The CJ2M-CPU34 fits industrial control projects that require dependable logic execution, maintainable programming workflows, and architecture growth over the equipment lifecycle. It supports standardized automation design across machine families while preserving serviceability in production environments.
Deterministic Logic and Sequence Control
This controller class supports predictable scan-driven execution for interlocks, sequencing, alarms, and coordinated device handling. Deterministic behavior is essential for consistent machine output and repeatable cycle performance.
Platform Reuse Across Equipment Variants
Standardizing on a proven PLC/controller family enables software reuse, reduced engineering lead time, and easier support across multiple machine models or production lines.
Lifecycle Service and Maintainability
A maintainable control architecture with documented I/O mapping, diagnostics, and modular expansion strategy reduces troubleshooting time and improves long-term ownership value.
Key Features
- Program Capacity: 30K steps
- Data Memory: 32K words
- Built-in Ports: EtherNet/IP, USB
- Max I/O Points: 2560 points
- LD Instruction Time: 0.04μs
- Expandable Units: Up to 40 units
- SKU: CJ2M-CPU34
- Series: CJ2M
- I/O: 2560 I/O
Best-Fit Applications
- Executes deterministic control logic
- Coordinates multi-device machine behavior
- Supports reusable software structures
- Improves fault diagnostics and recovery time
- Enables modular feature growth over time
- Standardizes control strategy across equipment
Buying Checklist
- Strong fit for scalable machine control
- Maintains deterministic automation behavior
- Supports long-term maintainability
- Good platform standardization candidate
- Reliable industrial controller ecosystem
Technical Specifications
| Model | CJ2M-CPU34 |
|---|---|
| Series | CJ2M |
| Type | PLC CPU Unit |
| Program Capacity | 30K steps |
| Data Memory | 32K words |
| Built-in Ports | EtherNet/IP, USB |
| Max I/O Points | 2560 points |
| LD Instruction Time | 0.04μs |
| Expandable Units | Up to 40 units |
| Battery Life | 5 years at 25°C |
| Operating Temperature | 0 to +55°C |
| Mounting | DIN rail or panel |
Resources & Downloads
FAQ for CJ2M-CPU34
When should I choose CPU34 over CPU33?
Choose CPU34 (30K steps) over CPU33 (20K steps) when your program exceeds 20K steps or you anticipate significant program growth. The price difference is usually small compared to the benefit of extra capacity.
Can this PLC communicate with multiple HMIs simultaneously?
Yes, the built-in EtherNet/IP port supports multiple simultaneous connections. You can connect HMIs, SCADA systems, and programming devices simultaneously without additional communication modules.
What happens when the battery dies?
The PLC will continue running but RAM data will be lost on power cycle. Replace the battery (CJ1W-BAT01) within 30 days of the low battery warning. Program and parameters stored in flash memory are retained without battery.
Is training available for programming this PLC?
Omron offers official CX-Programmer training courses. Many distributors also provide programming training. Online resources and documentation are available on Omron's industrial website.
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