The Omron NX-EIC202, also cataloged as the NX-EIC202 Coupler Unit, operates as a dedicated hardware component for fieldbus packet translation and slave bus management within EtherNet/IP network platforms.

Part Number Code Interpretation

• NX: Compact I/O system base product line.

• EIC: EtherNet/IP communication coupler module.

• 202: Standard functional specification revision supporting implicit and explicit CIP messaging.

Technical Performance Matrix

Deterministic Network Bus Architecture

The module utilizes an internal backplane bus communication velocity profile designed for high-density I/O data refresh cycles across downstream expansion blocks. Real-time CIP messaging protocol engines maintain low-jitter EtherNet/IP determinism, while integrated firmware flash compatibility ensures synchronized operational execution during dynamic network topology changes.

Deliverable Package Breakdown

• 1 x Omron NX-EIC202 EtherNet/IP Coupler Unit

• 1 x Bus end cover

• 1 x Installation manual sheet

Field Installation & Wiring Guidelines

• Secure the module onto a standard 35 mm DIN rail in a horizontal orientation inside an IP54-rated industrial cabinet.

• Connect the 24 VDC system power supply using twisted-pair copper conductors with cross-section areas between 0.2 mm2 and 2.5 mm2.

• Ensure standard Ethernet CAT5e or CAT6 shielded cable connections are routed away from high-voltage AC motor drives.

• Ground the functional earth terminal via a dedicated copper wire directly connected to the cabinet earth bar.

Technical Support FAQ

• What is the maximum number of NX I/O units that can be attached to one NX-EIC202?

  A single coupler unit controls up to 63 connected NX I/O units along the right-side local expansion backplane.

• Does the NX-EIC202 support hot-swapping of attached I/O modules during operation?

  No, power to the coupler and total backplane must be turned off before replacing or adding attached I/O units.

• How are IP address settings configured on the NX-EIC202 coupler?

  IP addresses are assigned via hardware rotary switches located on the front panel or configured via Sysmac Studio software.

• What communication topologies are supported by the dual RJ45 Ethernet ports?

  The onboard dual ports support star, daisy-chain, and ring network topologies via EtherNet/IP CIP messaging.

• What type of cable shield grounding is recommended for the communication lines?

  Use double-shielded STP cables grounded at both switch ends to prevent industrial electromagnetic noise interference.

• Is external power supply wiring required for downstream I/O module operation?

  Yes, separate power connections are required for internal logic circuit supply and field output load power lines.

• How does the coupler indicate internal CPU or communication fault status?

  Status indicators labeled MS (Module Status), NS (Network Status), and IO PWR display solid or flashing diagnostic LEDs.

• What is the maximum length per EtherNet/IP network segment connected to the unit?

  The maximum physical cable length between the coupler and the adjacent network switch or node is 100 meters.