Description
The Omron CJ1W-EIP21S is an EtherNet/IP communication unit designed to enable high-speed data exchange between PLC systems and industrial networks. It supports 100Base-TX communication and integrates seamlessly with Omron NJ, CJ, and CP1H series controllers. This module is used for real-time control, monitoring, and data communication in industrial automation environments.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Omron |
| Category |
Industrial Automation and Controls |
| Part Number |
CJ1W-EIP21S |
| Subcategory |
PLC Module/Rack |
| Module Type |
EtherNet/IP Communication Unit |
| Network Type |
EtherNet/IP (100Base-TX) |
| Transmission Speed |
100 Mbps |
| Media Access Method |
CSMA/CD |
| Transmission Media |
Shielded twisted-pair (Cat 5/5e) |
| Max Transmission Distance |
100 m |
| Mounting Type |
CPU Rack / Expansion Rack |
| Compatible PLCs |
NJ, CJ1/CJ2, CP1H Series |
| Current Consumption |
650 mA max. at 5 VDC |
| Dimensions |
31 × 90 × 65 mm |
| Memory Type |
Non-volatile (for settings and logs) |
| Operating Temperature |
0°C to 55°C |
| Weight |
Approx. 91 g |
Information About CJ1W-EIP21S
The CJ1W-EIP21S is a CPU Bus Unit from Omron’s CJ-series, developed for EtherNet/IP network integration. It is mounted on a CPU or expansion rack and facilitates communication between PLCs and external devices using standard Ethernet protocols. The unit features built-in non-volatile memory for storing network configurations, tag data links, and operational settings. It is widely used in factory automation systems where reliable and scalable network communication is required.
Key Features:
- EtherNet/IP communication: Enables high-speed industrial Ethernet connectivity
- 100Base-TX support: Provides stable data transmission at 100 Mbps
- Wide PLC compatibility: Works with NJ, CJ1/CJ2, and CP1H series controllers
- Flexible mounting: Installs on CPU or expansion racks
- Non-volatile memory: Stores network settings, tag data links, and logs
- Scalable architecture: Supports multiple units per system configuration
- Standard Ethernet media: Uses STP cables (Cat 5/5e) for easy integration
- Real-time data exchange: Supports control, monitoring, and diagnostics
The CJ1W-EIP21S delivers the reliability and precision required for industrial network communication and control systems.
