Gardner Denver RNC125 Instruction Manual page 11

2. USB Event History
When a USB flash drive is installed in the controller it will
begin to automatically log all dryer events: power loss,
power recovery, alarms, state (standby/running), and mode
(manual/scheduled/remote).
Events are timestamped and recorded in the EVENT.TXT file
stored in the root folder of the USB flash drive.
3. USB Bootloader
Firmware updates for the dryer controller can be performed
via the USB flash drive. In order to perform a firmware
update; place the image.hex and lang.hex files provided by
SPX in the root folder of a USB thumb drive.
With the dryer controller powered off install the USB flash
drive in the USB host port on the dryer control board. Then
while holding the enter button on the front panel apply
power to the controller. Once the power LED begins blinking
rapidly you can release the enter button. The controller will
reboot when the update is complete. On startup the current
firmware version will be shown on the text display.
Version x.x
9