Updating Controller Firmware *.Efw - Beckhoff EL34 Series Documentation

Fig. 189: Display of EL3204 firmware version
In (A) TwinCAT 2.11 shows that the Online CoE directory is currently displayed. If this is not the case, the
Online directory can be loaded via the Online option in Advanced Settings (B) and double-clicking on
AllObjects.
8.4.3

Updating controller firmware *.efw

CoE directory
The Online CoE directory is managed by the controller and stored in a dedicated EEPROM, which
is generally not changed during a firmware update.
Switch to the Online tab to update the controller firmware of a slave, see Fig. Firmware Update.
Fig. 190: Firmware Update
EL34xx Version: 1.5
Appendix
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