LS ELECTRIC L7NHF Series, User Manual

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14. Appendix
14-2
(7-Segment displays a message when downloading the firmware using the OTG)
(5) Turn on the power again, and verify if the firmware is updated.
14.1.2
Use of FoE (File access over EtherCAT)
FoE is a simple file transfer protocol using the EtherCAT, enabling firmware update. When the drive and
the upper level controller (e.g.: TwinCAT) are connected, you can simply update the firmware remotely
via FoE. The update procedure is as follows:
Request for ＂ boot ＂ State
Change “ boot ” State
＂
boot
＂
State?
Write Request
Transfer *Password, *File
Name
Receive Write Request
*Password, *File Name
Do the Name and
password match?
Error request
Error code : 0x8009
Receive error-request
No
Yes
No
Master
(e.g. TwinCAT)
Servo Drive
Yes
Ack-request
*packet Number : 0x0
Receive Ack-request
Data request
*Packet Number
*File Data
Receive Ack-request
Data request (Final Data)
*Packet Number
*File Data
Receive Data request
Write the data to flash ROM
Ack-request
*packet Number : next time
packet number of data
Receive Data request
Write the data to flash ROM
Ack-request
*packet Number : next time
packet number of data
Receive Ack-request
(1)
Establish communication between the drive and the TwinCAT.
(2)
I/O Configuration of TwinCAT - On the Online tab of the drive connected to the I/O, click Bootstrap in
the State Machine menu.