Datalogic AMT58 Series Manual page 70

4.9 Diagnostic LEDs (Figure 1)
Two LEDs located in the rear side of the connection cap are
designed to show the operating or fault status of the Profibus-DP
interface.
Power
Fault (red)
(green)
OFF OFF
OFF ON
OFF Flashing
ON Flashing
ON OFF
Flashing ON
Flashing Flashing
AMT58x-PB Profibus®
Event
Power supply is turned off or hardware
breakdown not recognized
Correct function (communication is on,
the device is sending / receiving
messages)
The encoder is operating within the
limits of the "Red Zone", for any
information see section "6.8 "Red zone""
Configuration parameters are not valid
Transmission time-out error
Bus communication failure
Flash memory error, unrestorable error
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