Rockwell Automation 1336F PLUS II Firmware Download Module Inst. - Manual (Page 9)

1336 PLUS II Firmware Download Module 9
The download process will continue until complete. The screen will be
updated as progress continues. The STOP LED on the Main Control
Board will flicker or blink, indicating communications. If an error
message is received, refer to Table, “General Troubleshooting,” on
page 12.
Important: Do not interrupt the download procedure. If the procedure is
interrupted, the program in the drive will be corrupted. The
procedure must then be repeated.
If the “packet” value is not incrementing and the time remaining block is
continually incrementing, the file transfer is not taking place. If this
occurs, cancel the operation and repeat the entire procedure, verifying
jumper placement, cabling and communications setup.
When the transfer is complete, the screen will indicate that the file was
successfully transferred and checksums are complete.