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NI-Industrial Communications for EtherCAT 2026 Q3 Known Issues

Created Jul 27, 2026

Overview

This document contains the NI-Industrial Communications for EtherCAT known issues that were discovered before and since the release of NI-Industrial Communications for EtherCAT 2026 Q3. Known issues are performance issues or technical bugs that NI has acknowledged exist within this version of the product.

 

Not every issue known to NI appears on this list; it is intended to show the most severe and common issues that you may encounter and provide workarounds when possible. Other technical issues that you may encounter could occur through normal product use or system compatibility issues. You may find more information on these issues in NI’s Product Documentation, Knowledgebase, or Community; see Additional Resources.

Bug Number

Legacy ID

Description

Details

Devices with multiple revisions require an exact revision match in the ESI file

For devices with multiple revisions, the master requires the revision in the ESI file to exactly match the revision reported by the hardware. If the revisions do not match exactly, the device does not load or configure correctly.

Workaround:

Edit the ESI file so that the revision value matches the revision reported by the hardware.

Reported Version:

N/A

Resolved Version:

NI-Industrial Communications for EtherCAT: 2026 Q3

Added:

Jul 11, 2026

Loading modular EtherCAT devices may fail when the 0xF050 register is not supported

When modular EtherCAT devices do not support the optional 0xF050 register, the master may not be able to discover the device modules correctly. This can prevent the modular device profile from loading and the device from being initialized successfully in a LabVIEW project.

Workaround:

There is currently no known workaround for this issue.

Reported Version:

N/A

Resolved Version:

NI-Industrial Communications for EtherCAT: 2026 Q3

Added:

Jul 11, 2026

Final Time Issue Listed

Issues found in this section will not be listed in future known issues documents for this product.

There are currently no issues to list.

Additional Resources

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Glossary of Terms

 

  • Bug ID - When an issue is reported to NI, you may be given this ID or find it on ni.com.  You may also find IDs posted by NI on the discussion forums or in KnowledgeBase articles.
  • Legacy ID – An older issue ID that refers to the same issue.  You may instead find this issue ID in older known issues documents.
  • Description - A few sentences which describe the problem. The brief description given does not necessarily describe the problem in full detail.
  • Workaround - Possible ways to work around the problem.
  • Reported Version - The earliest version in which the issue was reported.
  • Resolved Version - Version in which the issue was resolved or was no longer applicable. "N/A" indicates that the issue has not been resolved.
  • Date Added - The date the issue was added to the document (not the reported date).