Posted By
Kunas
Sep 08, 2023 02:24:00 AM
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Hi everyone! I have CompactLogix L35E controller. I updated the firmware of 2 controllers with firmware from 15.4 to 20.12. After I downgrade the version to 19 and then to 15.4, since the controller did not downgrade the firmware immediately on 15.4. The first controller was downgraded well. The second ...
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