NU-EC1A Keyence EtherCAT Network Communication Unit

NU-EC1A Keyence EtherCAT Network Communication Unit

Technical Specifications

• Brand: Keyence
• Model: NU-EC1A
• Series: NU
• Ethernet: IEEE802.3u (100BASE-TX), 100 Mbps, Cat 5e or higher STP
• Ports: RJ45 ×2 (EtherCAT)
• Node distance: 100 m maximum
• Protocols: EtherCAT with cyclic process data, mailbox CoE and explicit device ID
• Sensor connection: N-bus compatible amplifiers, 16 units maximum
• Passing current: 1,200 mA or less total
• Supply voltage: 24 VDC +/-10%, ripple 10% or less
• Power consumption: Not available
• Operating temperature: -20 to +55 °C, no freezing
• Relative humidity: 35 to 85% RH, no condensation
• Weight: Approx. 0.08 kg including connectors
• Communication expansion: None
• Lifecycle: Active, with confirmed Keyence production status (last verified September 2026)

Installation Guide

• Mount the unit on a flat surface inside your control cabinet.
• Connect both RJ45 ports with Cat 5e or higher STP cable.
• Keep each node distance at 100 m or less between devices.
• Link N-bus amplifiers using the wiring-saving connector, up to 16 units.
• Keep total passing current at 1,200 mA or less across all amplifiers.
• Wire 24 VDC +/-10% to the power connector with ripple at 10% or less.
• Verify that ambient temperature stays within -20 to +55 °C.
• Assign the explicit device ID in your EtherCAT master for clear node mapping.

Key Performance Highlights

• The NU-EC1A offers dual RJ45 ports for simple line topology and daisy chaining.
• Explicit device ID helps engineers identify each node without guesswork.
• EtherCAT cyclic process data delivers fast, deterministic control updates.
• Mailbox CoE handles parameter reads and configuration transfers with ease.
• The unit handles up to 16 N-bus amplifiers with a single wiring-saving connector.
• 100BASE-TX at 100 Mbps keeps network traffic steady and predictable.
• A wide operating range of -20 to +55 °C suits harsh factory floors.
• Humidity tolerance of 35 to 85% RH supports most industrial environments.

Package Contents

• 1 × Keyence NU-EC1A network communication unit
• Connectors as supplied with the unit
• Original manufacturer packaging

Shipping and Support

• We ship worldwide through FedEx, UPS and DHL.
• We dispatch orders within 5 days after payment confirmation.
• We accept returns within 30 days of delivery.
• All units come brand new and original.
• We keep this item in stock for fast order processing.

FAQ

• Q: Does the NU-EC1A support EtherCAT?
  A: Yes, it supports cyclic process data, mailbox CoE and explicit device ID.
• Q: What does the explicit device ID feature do?
  A: It lets your EtherCAT master identify each node clearly during setup and diagnostics.
• Q: How many Ethernet ports does the unit have?
  A: It carries two RJ45 ports for daisy-chained EtherCAT topology.
• Q: What is the maximum node distance?
  A: The unit supports a maximum node distance of 100 m between devices.
• Q: How many N-bus amplifiers can I connect?
  A: You can connect up to 16 N-bus compatible amplifiers to one unit.
• Q: What supply voltage does it require?
  A: It needs 24 VDC +/-10% with ripple at 10% or less.
• Q: Is the NU-EC1A in stock?
  A: Yes, we hold stock and ship within 5 days via FedEx, UPS or DHL.
• Q: Can I return the unit?
  A: Yes, we accept returns within 30 days, and every unit ships brand new and original.