More information about the diagnostics data may be found in the SystemSLIO manual HB300_FM_050-1BA00.10.9.4 Diagnostics via OB start informationn On an error the faulty system generates a diagnostics message for the CPU. Thenthe CPU calls the according diagnostics OB. Here the CPU operating system trans-fers start information to the local data of the OB.n By evaluating the start information of the according OB you can get information aboutcause and location of the error.n During runtime you can access the start information with the system function SFC 6RD_SINFO.n Please consider that you can even read the start information in the OB himself,because the data are temporary data.Depending on the type of error, the following OBs are called in a diagnostics event:n OB 82 on an error of an module at the IO device (Diagnostics interrupt)n OB 83 on inserting respectively removing a module on a IO devicen OB 86 on failure respectively return of a IO deviceMore information about the OBs and their start information may be foundin the online help of your programming tool and in the manual "SPEED7Operation List" from VIPA.10.9.5 Diagnostics status indication via SSLsThe PROFINET IO controller does not have any physical LEDs to show the status. Thestatus information are stored as virtual LED states. During runtime, you can determinetheir status using the SSL partial lists xy19h or xy74h. More can be found in the manualoperation list (HB00_OPL_SP7) of your CPU.Virtual LEDs PROFINETBF3(bus error)BS2(Bus status)MT2(Maintenance)MeaningPROFINET is not configured.PROFINET is configured with valid Ethernet interface parameter, valid IPaddress and at least one IO device.X X n Bus error, no connection to sub net/switch.n Wrong transfer raten Full-duplex-transmission is not activated.2HzX X n Failure of a connected IO device.n At least one IO device is not access-able.n Faulty configurationn I device is configured, but no connection exists yet.VIPA System SLIO Deployment PG/OP communication - PROFINETPROFINET diagnostics > Diagnostics status indication via SSLsHB300 | CPU | 013-CCF0R00 | en | 19-30 251