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Manual VIPA System 300V
Chapter 3
Profibus DP
HB130E - IM - Rev. 08/26
3-45
Using the diagnostic LEDs
The following example shows the reaction of the LEDs for different types of
network interruption.
A
B
Slave 1
Slave 2
Master
LED
Slave 1
Position of
interruption
LED
A
B
RD Blinks
Off
ER Off
On
DE Off
Off
LED
Slave 2
Position of
interruption
LED
A
B
RD blinks
On
ER Off
Off
DE Off
On
Interruption at position A
The Profibus has been interrupted.
Interruption at position B
Communication via the backplane
bus has been interrupted.