Communication manual 8400 motec PROFIBUS
Diagnostics
LED status displays
72 L EDS84DMOTPBUS EN 3.0 - 11/2011
11 Diagnostics
PROFIBUS communication faults can be diagnosed via the LEDs of the communication unit.
Moreover, the »Engineer« provides PROFIBUS diagnostic information.
11.1 LED status displays
E84DG056
LED Colour State Description
MS Green On
The communication module is supplied with voltage and has
established a connection to the standard device.
Blinking
The communication module is supplied with voltage, but has not yet
established a connection to the standard device. (Standard device is
switched off, initialising or not present.)
ME Red On
An error concerning the communication module has occurred.
BS Green Off The communication module is not active on the fieldbus or is in the
"Init" state.
Blinking
The communication module is in the "Data_Exchange" state.
BE Red Blinking
Incorrect setting for the station address.
The communication module is initialised and internally operates
with the respective default values.
On
Bus error/fault is active (e.g. bus cable unplugged).
200 ms
200 ms
200 ms
200 ms
200 ms
200 ms