CJ1W-ETN21

Name: CJ1W-ETN21
Brand: OMRON
SKU: CJ1W-ETN21

The Omron CJ1W-ETN21 is a versatile Ethernet Unit designed for the CJ-series PLCs, offering reliable 100Base-TX and 10Base-T communication. It supports up to 100 meters of transmission distance and is ideal for various industrial automation applications.

Product ModelCJ1W-ETN21

Product ID59850

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Seamless CommunicationThe CJ1W-ETN21 supports both 100Base-TX and 10Base-T, ensuring compatibility with a wide range of industrial networks.
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2. High-Speed Data TransferWith a transmission speed of 100 Mbps, this unit efficiently handles data transfer between PLCs and other devices.
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3. Long Transmission DistanceThe unit can transmit data up to 100 meters, making it suitable for large-scale industrial automation systems.
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4. Flexible Mounting OptionsThe CJ1W-ETN21 can be mounted in CPU racks or expansion racks, providing flexibility in system design and integration.
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Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Max. expansion

Mounting

Mounts on CJ1W-SCU2x module

# of nodes or words unit supports

254 nodes

Connector type

RJ45

Manufacturer ID

5. Reliable ConnectivityUtilizing CSMA/CD media access method and baseband modulation, this unit ensures reliable and stable Ethernet connections.

6. Versatile CompatibilityCompatible with CJ-series PLCs, CP1H system, and NSJ system, making it a versatile solution for various industrial automation needs.

7. Easy ConfigurationFeaturing a user-friendly interface with switches for unit and node number settings, making configuration and setup straightforward.

8. Robust DesignBuilt with a robust design, the unit is durable and can withstand industrial environments, ensuring continuous operation.

9. Energy EfficiencyConsumes 370 mA at 5 V DC, making it energy-efficient and cost-effective for long-term operation.

10. Comprehensive FeaturesSupports FINS message communications using UDP/IP or TCP/IP, FTP server functions, and socket services, enhancing its utility in industrial automation systems.