IOx-Bly1IOx-Bly2IOx-Bly3IOx-Bly4ÆÆÆÆACTIVATE GROUP 4ACTIVATE GROUP 3ACTIVATE GROUP 2ACTIVATE GROUP 1ACTGRP1ACTGRP2ACTGRP3ACTGRP4GRP1GRP2GRP3GRP4ACTVGRPSETCHGDIEC09000063_en_1.vsdIEC09000063 V1 ENFigure 269: Connection of the function to external circuitsThe above example also shows the five output signals, GRP1 to 4 for confirmation ofwhich group that is active, and the SETCHGD signal which is normally connected toa SP16GGIO function block for external communication to higher level controlsystems.15.4 Test mode functionality TESTMODE15.4.1 IdentificationFunction description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberTest mode functionality TESTMODE - -15.4.2 FunctionalityWhen the Test mode functionality TESTMODE is activated, all the functions in theIED are automatically blocked. Activated TESTMODE is indicating by a flashingyellow LED on the local HMI. It is then possible to unblock every function(s)individually from the local HMI to perform required tests.When leaving TESTMODE, all blockings are removed and the IED resumes normaloperation. However, if during TESTMODE operation, power is removed and laterrestored, the IED will remain in TESTMODE with the same protection functionsblocked or unblocked as before the power was removed. All testing will be done withSection 15 1MRK 511 287-UEN ABasic IED functions560Technical manual