Datalogic AMT58 Series Manual page 138

AMT58x-EC EtherCAT®
5. To check whether the firmware upgrade procedure has been
completed successfully enter the Online page in the TwinCAT
System Manager main window and press the Pre-Op button in
the State Machine box; if everything is ok, the encoder enters
the PREOPERATIONAL state (the PREOP message appears
next to the Current State item in the same box).
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