What Is SCADA? Supervisory Control Without Replacing the PLC
SCADA sits above PLCs and RTUs: it acquires field data, alarms operators, and issues supervisory commands across plants and remote assets—without replacing local deterministic control.

Designed to integrate CANopen fieldbus communication into Omron control architectures, the CJ1W-CORT21 operates as a high-performance CPU Bus Unit within the CJ Series PLC platform. This module enables seamless data exchange between CJ-series programmable controllers and standard CANopen network devices, including drives, sensors, and remote I/O systems.
The unit installs directly onto either a CPU Rack or an Expansion Rack, with support for up to 16 master/configurator units per PLC system depending on rack power constraints. Hardware-based configuration features, such as integrated front-panel rotary and DIP switches, allow for direct troubleshooting and commissioning without complex software intervention during basic setup.
| Manufacturer | Omron |
| Part Number / Model | CJ1W-CORT21 |
| Series | CJ Series |
| Unit Classification | CPU Bus Unit |
| Applicable PLCs | CJ1G, CJ1H, CJ1M, CJ2M, CJ2H |
| Mounting Position | CPU Rack or Expansion Rack |
| Max Units per PLC System | 16 Units max. |
| Unit Number Allocation | 0 to F (configured via hexadecimal rotary switch) |
| Network Power Supply Voltage | 11 to 25 VDC (supplied via communications connector) |
| Baud Rate Configuration | Digital front-panel DIP switch (3-position) |
| Influence on CPU Cycle Time | 0.3 ms + 0.0064 ms per allocated buffer |
| Shipping Weight | 2.0 kg |
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Returns & Warranty
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For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Japan
|