Watson-Marlow qdos H-FLO Reference Manual page 128

15.3.4.2 Loss of data exchange
If data exchange is lost at any time, the following screen will be displayed. The first red dot
corresponds to the stage at which the error occurred, and subsequent stages will indicate a red
dot because the communication sequence halted before this point.
The screen will state running or stopped, depending on how the user has set up the
fail-safe function within the PROFIBUS GSD file. The MODE button gives access to the
PROFIBUS settings and the station address. When menus are accessed, the pump
continues to run in PROFIBUS mode.
If the MODE or MENU button has been pressed, after five minutes of inactivity the
pump will revert to the home screen and discard any unsaved changes, if there are still
no communications then the BUS ERROR screen will be displayed.
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