LED
Meaning for PROFINET IO
Meaning for PROFIBUS DP
TX
Lit up in yellow:
Not available
Data is sent via the interface.
The LED flickers when low data volumes
are transferred.
LINK
Lit up in green:
Not available
Another device (most often a switch) is
connected and the physical connection
exists.
FO
Lit up in yellow:
Not available
End of form
The respective transmission path has to be
inspected.
7.18
Diagnostic tools
7.18.1
Diagnostics tools of PCS 7
Disclaimer of liability
WARNING
Siemens assumes no liability for improper use of the instructions provided in this
documentation and for any consequences that might result for the customer.
WARNING
Note the following:
● All work must be performed by trained service personnel.
● Always observe the plant-specific rules and government regulations when making
changes to your system.
● Observe the plant-specific boundary conditions and adjust the work accordingly.
● Always bear in mind that changes in a system can impact other parts of the system.
Diagnostics in PCS 7
7.18 Diagnostic tools
Service support and diagnostics (V8.0)
90
Service Manual, 03/2012, A5E02779775-02
