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ErrorLib — Industrial Fault Code Library

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16#1801 - 16#00000000

EtherCAT Slave Does Not Respond

Omron · SYSMAC N-Smart Series Library

What does 16#1801 - 16#00000000 mean?

The specified EtherCAT slave device failed to respond to communications. This can occur if the slave address is incorrect (target slave does not exist) or if the slave is not powered on or in an operational state.

Common Causes

  • The specified EtherCAT slave node address does not correspond to an actual slave device.
  • The target EtherCAT slave device is not powered or not in a usable operating condition.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the configured node address and ensure it corresponds to an existing EtherCAT slave device.

  2. 2

    Inspect the physical EtherCAT slave device to confirm it is powered on and its status indicators show a usable state.

Browse all codes in this manual (25)
Verified technical data. Last updated: April 2026

Related Faults

16#0400 - 16#00000000Input Value Out of Range16#1400 - 16#00000000SD Memory Card Access Failure16#1401 - 16#00000000SD Memory Card Write-protected
Source: Omron SYSMAC N-Smart Series Library
Open Manual (Page 41)Search more codes in this manual