4.9 Error handling4.9.1 OverviewIn EtherCAT there are the following two types of error messages:n Emergency error messagen Standard error message4.9.2 Emergency error messageEmergency error messages are generated on errors during state changes respectively athardware and diagnostic interrupts if the interrupt is activated by parameterization. Emer-gency error messages are released within device-internal mechanisms and sent to themaster by means of the mailbox service.Byte0 1 2 3 4 5 6 7EEC ER DATAEEC - Emergency Error Codes following ETG specifications:0xFFxx: Vendor-specific emergency message (VIPA = 0xFF00)0xA0xx: State Machine transition error, e.g. due to a configuration error (length,address, settings). More information concerning this may be found at ETG.ER - Error register - State of the State Machine:01: Init02: Pre-Op03: BootStrap04: Safe-Op08: OpDATA - Error data with more information concerning the errorWith a hardware interrupt or diagnostic interrupt respectively in DATA the ManufacturerSpecific Error Field (MEF) may be found. The field has the following structure:Byte0 1 2 3 4 5 6 7EEC ER SLOT TYPE DIAGMEFSLOT - EtherCAT-Slot of the module where is the error fromTYPE - Interrupt type01: Hardware interrupt02: Diagnostics interruptDIAG - Error code, which is described at corresponding module.Frame structureVIPA System SLIODeploymentError handling > Emergency error messageHB300 | IM | 053-1EC01 | en | 18-4992