Error Displays - Siemens SIMATIC CPU 410 System Manual

Plant changes in RUN - CiR
11.11 Effects on the process when re-configuring in RUN
11.11.2.2

Error displays

LED Displays during Reconfiguration
The INTF LED is lit from the start of the consistency check until completion of SDB
evaluation. The light will remain on if module parameters are being changed.
After the CiR operation, the preset configuration and the actual configuration will differ (the
preset configuration is changed after you have downloaded a configuration change to the
CPU) and the EXTF LED is lit. If your modified configuration includes added slaves, the
BUS1F LED or the BUS2F LED will also flash. The BUS1F LED, BUS2F LED and EXTF
LED will be switched off after you have made the corresponding hardware changes.
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CPU 410 Process Automation/CPU 410 SMART
System Manual, 05/2017, A5E31622160-AC