Omron CS1W-ETN21 CS Series Ethernet Unit

Description

Integrating programmable logic controllers into enterprise networks requires reliable, high-speed communication interfaces. The Omron CS1W-ETN21 is a robust Ethernet unit designed specifically for the Omron CS-series PLCs. Acting as a CPU Bus Unit, this module provides 100BASE-TX (and 10BASE-T) communication interfaces to seamlessly bridge your industrial automation setup with local area networks, SCADA systems, and high-level industrial software.

With its robust support for various protocols and communication services, the CS1W-ETN21 enables advanced operations such as FINS (Factory Interface Network Service) communications, TCP/IP and UDP/IP socket services, and an integrated FTP server. This versatility allows engineering teams to perform remote programming, diagnostics, and high-capacity data transfers with minimal system overhead.

Features

• Compatible with Omron CS1-series PLC systems as a CPU Bus Unit.
• Supports dual-rate physical connections: 100BASE-TX and 10BASE-T.
• Supports up to 4 Ethernet modules per CPU system (including Expansion Racks) for scalable network architectures.
• Embedded FTP server functionality allows direct file transfers of PLC memory files.
• Enables FINS messaging over both TCP/IP and UDP/IP protocols.
• Comprehensive diagnostic and monitoring capabilities through integrated status LEDs.

Applications

• High-speed manufacturing data collection and factory-floor integration.
• SCADA and HMI communications in automotive, food & beverage, and material handling systems.
• Remote PLC programming, monitoring, and program backup operations.
• Data exchange between disparate distributed control systems over Ethernet networks.

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Ensure the PLC rack power supply is completely switched off before inserting or removing the Ethernet unit.
• Securely mount the unit into the assigned CPU Bus Unit slot on the CS1 CPU Rack or Expansion Rack.
• Use high-quality shielded twisted-pair (STP) Category 5 (or higher) cables for 100BASE-TX connections to prevent electromagnetic interference in high-noise environments.
• Properly ground the PLC rack system to the industrial-grade earth ground terminal to stabilize communications and prevent transient voltage damage.

Compliance and Certifications

• CE Compliant
• UL Listed
• cULus Certification