315-4PN33

MT
(Mainte-
nance)
BF
(Bus error)
Meaning
BB X With a suited configuration tool you can cause the LED to blink by
means of the function ‘member blink test’ . This can be usefull for e.g.
identification of the module.
on: ● | off: ○ | blinking (2Hz): BB | not relevant: X
LEDs L/A, S
The green L/A-LED (Link/Activity) indicates the physical connection of the PROFINET IO con-
troller to Ethernet. Irregular flashing of the L/A-LED indicates communication of the PROFINET
IO controller via Ethernet.
If the green S-LED (Speed) is on, the PROFINET IO controller has a communication speed of
100MBit/s otherwise with 10MBit/s.
VIPA System 300SDeployment Ethernet communication - PROFINET
PROFINET diagnostics > Diagnostics via status LEDs
HB140 | CPU | 315-4PN33 | GB | 14-43 146