Table 851:TESTMODE Output signalsName Type DescriptionTEST BOOLEAN In test via IED TEST or via LD0 ModeIED_TEST BOOLEAN IED test mode is activeBLOCK BOOLEAN Active when LD0 is blocked or test blockedNOEVENT BOOLEAN Event disabled during test modeINPUT BOOLEAN IED TEST input is activeSETTING BOOLEAN IED test mode setting is OnIEC61850 BOOLEAN Active when LD0 Mode is in Blocked, Test or Testblocked20.9.4 SettingsTable 852:TESTMODE Non group settings (basic)Name Values (Range) Unit Step Default DescriptionIEDTestMode OffOn- - Off Activate IED Test modeEventDisable OffOn- - Off Event disable during test modeBlockAllFunc OffOn- - On Block all functions when entering IED testmodeCmdTestEd1 OffOn- - Off Require test bit in command at test mode(only for IEC61850 Ed1)20.9.5 Operation principlePut the IED into test mode to test functions in the IED. Set the IED in test mode by• configuration, activating the input SIGNAL on the function block TESTMODE.• setting TestMode to On in the local HMI, under Main menu/TEST/IED testmode.While the IED is in test mode, the output ACTIVE of the function block TESTMODEis activated. The outputs of the function block TESTMODE shows the cause of the“Test mode: being in On” state. If the input from the configuration (OUTPUT signalis activated) or setting from local HMI (SETTING signal is activated).While the IED is in test mode, the yellow START LED will flash and all functions areblocked. Any function can be unblocked individually regarding functionality andevent signalling.The deblocking is reseted when exiting test mode.The blocking of a function concerns all output signals from the actual function, so nooutputs will be activated.1MRK502052-UEN B Section 20Basic IED functions1121Technical manual