Omron CJ1W-DRM21 CJ Series DeviceNet Communication Unit
SKU: CJ1W-DRM21USD 125.00
Omron CJ1W-DRM21 is a DeviceNet communication unit for CJ series PLCs, enabling DeviceNet network connectivity for distributed I/O.
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Product Overview
The Omron CJ1W-DRM21 is a DeviceNet communication unit for CJ1 series programmable logic controllers, providing seamless connectivity to DeviceNet industrial field networks. DeviceNet is a popular CAN-based network standard widely used in industrial automation for connecting sensors, actuators, drives, and PLCs. The CJ1W-DRM21 operates as a DeviceNet slave device, allowing the CJ1 PLC to exchange data with remote I/O modules, smart sensors, and other DeviceNet-compatible devices on the network. The module supports both explicit messages and I/O polling for flexible data exchange. With high-speed communication up to 500 kbps, the CJ1W-DRM21 provides fast data exchange suitable for time-critical applications. The module supports multiple I/O connection types for flexible data mapping between the network and PLC memory. LED status indicators provide at-a-glance monitoring of network status and communication activity. Easy configuration through CX-Programmer allows quick setup of network parameters and I/O mapping. The CJ1W-DRM21 supports both thick and thin cable media, providing installation flexibility. Applications include distributed I/O systems, conveyor control, packaging machinery, material handling systems, and any application requiring network-connected I/O with Omron devices.
- SKU: CJ1W-DRM21
- Series: CJ1W
Best-Fit Applications
- Distributed I/O systems
- Conveyor control networks
- Packaging machinery integration
- Material handling systems
- Process automation
- Machine building
- Factory floor networks
- Remote I/O expansion
Buying Checklist
- Industry-standard DeviceNet connectivity
- High-speed network communication
- Flexible I/O connection types
- Easy I/O mapping
- LED diagnostics
- Standard CJ1 compatibility
- Proven Omron network technology
- Simplified wiring
Technical Specifications
| Model | CJ1W-DRM21 |
|---|---|
| Series | CJ1W |
| Type | DeviceNet Communication Unit |
| Protocol | DeviceNet |
| Baud Rate | 125/250/500 kbps |
| Max Nodes | 64 nodes |
| Max Distance | 500m (at 125kbps) |
| Connection | 5-pin terminal block |
| Current Consumption | 200mA at 5VDC |
| Compatible CPUs | CJ1M, CJ1G, CJ1H, CJ2M, CJ2H |
| Operating Temperature | 0 to +55°C |
| Mounting | CJ series backplane |
Resources & Downloads
FAQ for CJ1W-DRM21
What's DeviceNet used for?
DeviceNet is device-level network for connecting I/O, drives, sensors to PLC. Common in automotive, material handling, packaging industries.
How many nodes can this unit support?
Up to 64 nodes on DeviceNet network. Includes all devices: remote I/O, drives, sensors. Each node requires unique MAC ID (0-63).
What's the maximum cable length?
Depends on baud rate: 500m at 125kbps, 250m at 250kbps, 100m at 500kbps. Use thick cable for trunk, thin cable for drops.
Do I need to configure this unit?
Yes, configure in CX-Programmer: set baud rate, MAC ID, I/O allocation. Configuration downloads to CPU. Unit auto-recognizes connected DeviceNet devices.
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