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CJ1W Series PLC Module CJ1W-ETN21 - Industrial Automation PLC

The Omron CJ1W-ETN21 is an Ethernet communication unit for the CJ-series PLCs, enabling seamless integration of CJ-series controllers into industrial Ethernet networks. It features one 10/100 Mbps auto-negotiation RJ45 port, supporting standard TCP/IP and UDP/IP protocols, and implements FINS communication for data exchange with other Omron devices or host systems

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Technical Parameters Model: CJ1W-ETN21 Type: Ethernet Communication Unit (CJ-series CPU Bus Unit) Communication Port: 1 port (RJ45) Communication Standard: 10BASE-T, 100BASE-TX (auto-negotiation) Data Rate: 10 Mbps / 100 Mbps Supported Protocols: TCP/IP, UDP/IP, FINS, FTP, SMTP, POP3, SNTP, DNS Network Topology: Star topology Transmission Medium: UTP/STP Cat.3/4/5/5e (100 Ω) Max. Transmission Distance: 100 m (between hub and node) Max. Mountable Units: 4 units (including expansion racks) Power Supply: 5 VDC (from PLC backplane) Power Consumption: ≤ 370 mA at 5 VDC Mounting: CJ-series PLC backplane mounting Dimensions (W×H×D): 31 × 90 × 65 mm Weight: Approx. 100 g Operating Temperature: 0–55 °C Storage Temperature: -20–70 °C Operating Humidity: 5–95% RH (non-condensing) Protection Rating: IP20 Compliance: RoHS compliant