GE L30

viii L30 Line Current Differential System GE Multilin
TABLE OF CONTENTS
10.1.4 LOCAL-REMOTE RELAY TESTS ....................................................................10-4
11. MAINTENANCE 11.1 MODULES
11.1.1 REPLACE A MODULE .....................................................................................11-1
11.2 BATTERIES
11.2.1 REPLACE BATTERY .......................................................................................11-3
11.2.2 DISPOSE OF BATTERY ..................................................................................11-5
11.3 UNINSTALL AND CLEAR FILES AND DATA
11.3.1 UNINSTALL AND CLEAR FILES AND DATA ..................................................11-8
11.4 REPAIRS
11.4.1 REPAIRS ..........................................................................................................11-9
11.5 STORAGE
11.5.1 STORAGE ......................................................................................................11-10
11.6 DISPOSAL
11.6.1 DISPOSAL......................................................................................................11-11
A. FLEXANALOG AND
FLEXINTEGER
PARAMETERS
A.1 PARAMETER LISTS
A.1.1 FLEXANALOG ITEMS....................................................................................... A-1
A.1.2 FLEXINTEGER ITEMS...................................................................................... A-9
B. MODBUS
COMMUNICATIONS
B.1 MODBUS RTU PROTOCOL
B.1.1 INTRODUCTION ............................................................................................... B-1
B.1.2 PHYSICAL LAYER ............................................................................................ B-1
B.1.3 DATA LINK LAYER ........................................................................................... B-1
B.1.4 MODBUS RTU CRC-16 ALGORITHM .............................................................. B-2
B.2 MODBUS FUNCTION CODES
B.2.1 SUPPORTED FUNCTION CODES ................................................................... B-4
B.2.2 READ ACTUAL VALUES OR SETTINGS (FUNCTION CODE 03/04H) ........... B-4
B.2.3 EXECUTE OPERATION (FUNCTION CODE 05H)........................................... B-5
B.2.4 STORE SINGLE SETTING (FUNCTION CODE 06H)....................................... B-5
B.2.5 STORE MULTIPLE SETTINGS (FUNCTION CODE 10H)................................ B-6
B.2.6 EXCEPTION RESPONSES............................................................................... B-6
B.3 FILE TRANSFERS
B.3.1 OBTAINING RELAY FILES VIA MODBUS........................................................ B-7
B.4 MEMORY MAPPING
B.4.1 MODBUS MEMORY MAP ................................................................................. B-9
B.4.2 DATA FORMATS............................................................................................. B-72
C. IEC 61850
COMMUNICATIONS
C.1 OVERVIEW
C.1.1 INTRODUCTION ...............................................................................................C-1
C.1.2 COMMUNICATION PROFILES.........................................................................C-1
C.1.3 FILE TRANSFER BY IEC 61850 .......................................................................C-2
C.2 SERVER DATA ORGANIZATION
C.2.1 OVERVIEW .......................................................................................................C-3
C.2.2 GGIO1: DIGITAL STATUS VALUES ................................................................. C-3
C.2.3 GGIO2: DIGITAL CONTROL VALUES..............................................................C-3
C.2.4 GGIO3: DIGITAL STATUS AND ANALOG VALUES FROM GOOSE DATA .... C-3
C.2.5 GGIO4: GENERIC ANALOG MEASURED VALUES.........................................C-3
C.2.6 MMXU: ANALOG MEASURED VALUES ..........................................................C-4
C.2.7 PROTECTION AND OTHER LOGICAL NODES...............................................C-4