How To Update Firmware 1734-aent

Verify that your controller (e.g., CompactLogix L33ER) is compatible with the new firmware revision of the 1734-AENT. You can find compatibility matrices on the Rockwell Automation Knowledgebase (requires access). Upgrading the adapter to a revision that your PLC firmware cannot support will result in connection faults.

Once complete, wait about 3 minutes. If you receive an "Unconnected Send Timed Out" error at the very end, it often means the flash actually succeeded but the module rebooted too quickly for the software to confirm. Power cycle the module and check the revision in RSLinx. Troubleshooting & Pro Tips how to update firmware 1734-aent

Visit the Rockwell Automation Product Compatibility & Download Center (PCDC) . Search for . Verify that your controller (e

This is the tried‑and‑true method. (Works with Windows 7, 10, 11). Once complete, wait about 3 minutes

If your controller is v28 or later:

Updating firmware on industrial hardware can be an intimidating task. The fear of "bricking" a device or causing network downtime often leads technicians to neglect updates until a critical issue arises. However, keeping your 1734-AENT firmware current is essential for security patches, bug fixes, and ensuring compatibility with the latest versions of Studio 5000 Logix Designer.