PCD0
Technical data’s and circuit diagrams for the modular system
Page 36
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SAIA-Burgess Controls Ltd.
(HB_PCD0 26 766_E2.DOC)
26/766 E2
4.2.1
LED displays on the BC bus coupler
Bus-specific displays
LED
Color
Meaning
RUN
Yellow
The bus coupler processor is running.
BF
Red
No bus connection (bus fail)
Field bus cable break or the master does not operate the bus (any more).
DIA
Red
Diagnosis message
The bus coupler has sent a PROFIBUS-DP diagnosis message to the master.
5V
Yellow
Internal 5V power supply operates correctly.
Operating mode display