Product Description
Omron CJ1W-CLK21-V1 Controller Link Unit
The Omron CJ1W-CLK21-V1 is a highly reliable Controller Link Unit designed specifically for Omron’s SYSMAC CJ series Programmable Logic Controllers (PLCs). It facilitates seamless, high-speed data links and message communications between PLCs and higher-level computer systems. Engineered for robust industrial automation networks, this unit features intuitive front-panel LED indicators (RUN, ERR, LNK, MST) that allow operators to monitor real-time network and operational status at a glance. The module easily mounts onto a standard CJ series backplane or DIN rail setup, ensuring quick installation and streamlined integration into your existing control architecture.
Technical Specifications:
- Brand: Omron
- Model: CJ1W-CLK21-V1
- Product Type: Controller Link Unit
- Compatible Series: SYSMAC CJ Series PLCs
- Communication Cable: Shielded Twisted-Pair (Wired)
- Baud Rate: 2 Mbps, 1 Mbps, or 500 kbps
- Maximum Nodes: 32 nodes (expandable up to 62 with repeaters)
- Status Indicators: LED (RUN, ERR, LNK, MST)
- Mounting: CJ Series Backplane

Omron CJ1W-CLK21-V1 Controller Link Unit
Upgrade your industrial control network with the Omron CJ1W-CLK21-V1 Controller Link Unit. Designed for SYSMAC CJ series PLCs, this module delivers reliable, high-speed data communication with built-in LED status monitoring. Ideal for optimizing factory automation systems.




