CS1W-EIP21S EtherNet/IP Module | PLC Communication Unit | Omron CJ/CS Series | Secure Industrial Network
SKU: CS1W-EIP21SOmron CS1W-EIP21S EtherNet/IP module for CJ/CS-series PLCs. Enables high-speed, secure data exchange and integration with factory automation networks, supporting CIP communication services.
1-Year Warranty
Full manufacturer warranty
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Product Overview
The Omron CS1W-EIP21S is an industrial EtherNet/IP communication module designed for seamless integration of CJ/CS-series PLCs into modern factory automation networks. This module facilitates secure, high-speed data exchange and control between the PLC and a wide range of EtherNet/IP-compatible devices, including HMIs, drives, sensors, and other controllers from multiple vendors. Supporting standard CIP (Common Industrial Protocol) services—including Explicit Messaging for parameter configuration and Implicit Messaging (I/O connections) for real-time control data—the CS1W-EIP21S enhances system flexibility and interoperability. It features a built-in Ethernet switch for daisy-chain wiring, simplifying cabinet layout and reducing installation costs. With support for up to 64 connections and advanced security features to protect your industrial network, this module is essential for building scalable, future-proof, and efficient control systems in manufacturing, packaging, and material handling applications.
- SKU: CS1W-EIP21S
- Series: Omron CJ1/CS1 Series
- Voltage: 5VDC
Best-Fit Applications
- Direct replacement and maintenance inventory planning for controllers assemblies.
- Machine build and retrofit projects where verified Omron part authenticity is required.
- Urgent breakdown recovery when lead time and logistics coordination impact downtime costs.
Buying Checklist
- Confirm full SKU suffix and revision before ordering to prevent compatibility issues.
- Include destination country and required date when requesting quote for accurate freight options.
- Share quantity tiers to receive optimized unit pricing for pilot and production batches.
- This model is part of the Omron CJ1/CS1 Series line, useful for family-level replacement matching.
- Electrical selection signal: 5VDC.
Technical Specifications
| Compatible PLC Series | Omron CJ1/CS1 Series |
|---|---|
| Communication Protocol | EtherNet/IP (CIP) |
| Physical Interface | 2 x RJ45 (10BASE-T/100BASE-TX), with built-in switch |
| Supported Services | Explicit Messaging, Implicit (I/O) Messaging |
| Max. Connections | 64 |
| Module Classification | CPU Bus Unit |
| Required Power Supply | 5VDC from PLC backplane |
| Isolation | Transformer isolation (Ethernet port) |
Resources & Downloads
FAQ for CS1W-EIP21S
Is CS1W-EIP21S available for immediate shipment?
Many popular SKUs are available from stock. Share required quantity and destination to confirm exact lead time.
Can you help verify if CS1W-EIP21S matches my existing part?
Yes. Send your current part label, machine model, or photo and we can validate compatibility before ordering.
Do you provide warranty and authenticity support?
Yes. We supply genuine Omron products with warranty support and can provide origin and packing evidence when requested.
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