Appendix
EL922x
159
Version: 1.0
9.3.3
Updating controller firmware *.efw
Updating the firmware
Before updating the firmware, the input voltage must be switched off.
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. 118: Firmware Update
Proceed as follows, unless instructed otherwise by Beckhoff support. Valid for TwinCAT 2 and 3 as
EtherCAT master.
• Switch TwinCAT system to ConfigMode/FreeRun with cycle time >= 1 ms (default in ConfigMode is 4
ms). A FW-Update during real time operation is not recommended.