Errors Error Code Error MessageMLFB error 00000100 MLFB Information Error!Card error 00001000 Analog & IO Card Error!Internal supply voltage error 00010000 –Unexpected error 00100000 –ii NOTEIf a binary output is assigned to IRF, Siemens recommends not to use the same binary output for any otherprotection function configuration.Device Maintenance8.2 Self Monitoring92 Reyrolle, Operating, ManualC53000-B7040-C101-1, Edition 08.2020