GE Multilin F35 Multiple Feeder Protection System viiTABLE OF CONTENTS9. COMMISSIONING 9.1 TESTING9.1.1 TESTING UNDERFREQUENCY ELEMENTS ................................................... 9-110. MAINTENANCE 10.1 MODULES10.1.1 REPLACE A MODULE..................................................................................... 10-110.2 BATTERIES10.2.1 REPLACE BATTERY....................................................................................... 10-310.2.2 DISPOSE OF BATTERY.................................................................................. 10-410.3 UNINSTALL AND CLEAR FILES AND DATA10.3.1 UNINSTALL AND CLEAR FILES AND DATA.................................................. 10-710.4 REPAIRS10.4.1 REPAIRS ......................................................................................................... 10-810.5 STORAGE10.5.1 STORAGE........................................................................................................ 10-910.6 DISPOSAL10.6.1 DISPOSAL ..................................................................................................... 10-10A. FLEXANALOG ANDFLEXINTEGERPARAMETERSA.1 PARAMETER LISTSA.1.1 FLEXANALOG ITEMS .......................................................................................A-1A.1.2 FLEXINTEGER ITEMS ....................................................................................A-25B. MODBUSCOMMUNICATIONSB.1 MODBUS RTU PROTOCOLB.1.1 INTRODUCTION................................................................................................B-1B.1.2 PHYSICAL LAYER.............................................................................................B-1B.1.3 DATA LINK LAYER............................................................................................B-1B.1.4 MODBUS RTU CRC-16 ALGORITHM...............................................................B-2B.2 MODBUS FUNCTION CODESB.2.1 SUPPORTED FUNCTION CODES ...................................................................B-4B.2.2 READ ACTUAL VALUES OR SETTINGS (FUNCTION CODE 03/04H) ...........B-4B.2.3 EXECUTE OPERATION (FUNCTION CODE 05H) ...........................................B-5B.2.4 STORE SINGLE SETTING (FUNCTION CODE 06H) .......................................B-5B.2.5 STORE MULTIPLE SETTINGS (FUNCTION CODE 10H) ................................B-6B.2.6 EXCEPTION RESPONSES ...............................................................................B-6B.3 FILE TRANSFERSB.3.1 OBTAINING RELAY FILES VIA MODBUS ........................................................B-7B.4 MEMORY MAPPINGB.4.1 MODBUS MEMORY MAP .................................................................................B-9B.4.2 DATA FORMATS .............................................................................................B-70C. IEC 61850COMMUNICATIONSC.1 OVERVIEWC.1.1 INTRODUCTION................................................................................................C-1C.1.2 COMMUNICATION PROFILES .........................................................................C-1C.1.3 FILE TRANSFER BY IEC 61850 .......................................................................C-2C.2 SERVER DATA ORGANIZATIONC.2.1 OVERVIEW........................................................................................................C-3C.2.2 GGIO1: DIGITAL STATUS VALUES .................................................................C-3C.2.3 GGIO2: DIGITAL CONTROL VALUES ..............................................................C-3C.2.4 GGIO3: DIGITAL STATUS AND ANALOG VALUES FROM GOOSE DATA ....C-3C.2.5 GGIO4: GENERIC ANALOG MEASURED VALUES.........................................C-3C.2.6 MMXU: ANALOG MEASURED VALUES...........................................................C-4