NOTICE
Data loss on the external CFast card
Always shut down SIMOTION correctly as otherwise there is a threat of data loss on the
external CFast card.
See also Section: Switching off (Page 178).
12.5 PROFINET bus error occurs
The flashing red SF PN LED on the SIMOTION P320‑4 indicates a problem of an I/O device
on the bus or a configuring error.
Information about further display modes of the LED can be found under SIMOTION P State
application > LED display (Page 120).
Error causes with flashing
● Failure of a connected I/O device
● At least one of the assigned I/O devices cannot be addressed
● Incorrect or no configuration.
PROFINET (LAN) X3 Port P1, P2, P3
The two LEDs on the respective PROFINET ports also provide information on the current
connection status:
PROFINET interface
LED 1 On
Off
Lights up green: Link
No physical connection available.
Troubleshooting:
Check for loose connector, defective cable, etc.
LED 2 On
Off
Lights up yellow: Activity
No logical connection, i.e. no Ethernet telegrams are exchanged.
Troubleshooting:
Check IP configurations, parameterize required router, etc.
Alarm, error and system messages
12.5 PROFINET bus error occurs
SIMOTION P320-4 E / P320-4 S
Commissioning and Hardware Installation Manual, 11/2016 199