Operation
Operating Manual PSSu H m F DP ETH SD
1002323EN04
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8.2.6
SF, BF
The LEDs "SF" and "BF" show errors in the bus connection of errors by a subscriber in in
the bus.
Colour
SF
Colour
BF
State
SF
State
BF
Key
Supply voltage is missing
Red
No connection to the bus
subscribers
Red
Configuration faulty
Red
Error in the head module
Green
Data transmission errorfree
8.2.7
5V, 24V
The "5 V" LED shows the status of the module supply.
Colour
Status
Meaning
No supply voltage for module supply or supply voltage is
faulty
Green
Module supply is available on the module bus
The "24 V" LED shows the status of the periphery supply.
Colour
Status
Meaning
No supply voltage for periphery supply or supply voltage is
faulty
Green
Periphery supply is available on the module bus