Product Description
Omron CJ1W-DRM21
The Omron CJ1W-DRM21 is a high-performance DeviceNet Master Unit designed for seamless integration with Omron’s CJ-series PLCs. This module enables the PLC to function as a master on a DeviceNet network, facilitating robust and efficient communication with a wide range of slave devices such as sensors, actuators, remote I/O terminals, and drives. It simplifies wiring and enhances system diagnostics, making it an ideal solution for building flexible and scalable distributed control systems in industrial automation applications. With support for up to 63 slave nodes and selectable communication speeds, the CJ1W-DRM21 provides the reliability and performance required for complex machine control.
Technical Specifications:
- Unit Type: DeviceNet Master Unit
- Applicable PLC Series: Omron CJ-series (e.g., CJ1G/H, CJ1M)
- Number of Nodes: Up to 64 nodes (Master Unit + 63 Slaves)
- Communication Speed: Selectable 125 kbps, 250 kbps, 500 kbps
- I/O Data Capacity: 5,000 input words, 5,000 output words
- Current Consumption: 0.23 A at 5 VDC

Omron CJ1W-DRM21
Discover the Omron CJ1W-DRM21, a reliable DeviceNet Master Unit for CJ-series PLCs. This module enables high-speed communication and control for up to 63 slave devices, perfect for industrial automation networks.







