GE L90 Instruction Manual page 9

11. COMMISSIONING
A. FLEXANALOG AND
FLEXINTEGER
PARAMETERS
B. MODBUS
COMMUNICATIONS
C. IEC 61850
COMMUNICATIONS
GE Multilin
TABLE OF CONTENTS
10.9 PHASE DISTANCE THROUGH POWER TRANSFORMERS
10.9.1 PHASE DISTANCE PROTECTION ............................................................... 10-27
10.9.2 EXAMPLE ...................................................................................................... 10-28
11.1 TESTING
11.1.1 CHANNEL TESTING ....................................................................................... 11-1
11.1.2 CLOCK SYNCHRONIZATION TESTS ............................................................ 11-2
11.1.3 CURRENT DIFFERENTIAL ............................................................................. 11-3
11.1.4 LOCAL-REMOTE RELAY TESTS ................................................................... 11-4
A.1 PARAMETER LISTS
A.1.1 FLEXANALOG ITEMS .......................................................................................A-1
A.1.2 FLEXINTEGER ITEMS ....................................................................................A-15
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 CRC-16 ALGORITHM........................................................................................B-2
B.2 MODBUS FUNCTION CODES
B.2.1 SUPPORTED FUNCTION CODES ...................................................................B-3
B.2.2 READ ACTUAL VALUES OR SETTINGS (FUNCTION CODE 03/04H) ...........B-3
B.2.3 EXECUTE OPERATION (FUNCTION CODE 05H) ...........................................B-4
B.2.4 STORE SINGLE SETTING (FUNCTION CODE 06H) .......................................B-4
B.2.5 STORE MULTIPLE SETTINGS (FUNCTION CODE 10H) ................................B-5
B.2.6 EXCEPTION RESPONSES ...............................................................................B-5
B.3 FILE TRANSFERS
B.3.1 OBTAINING RELAY FILES VIA MODBUS ........................................................B-6
B.3.2 MODBUS PASSWORD OPERATION ...............................................................B-7
B.4 MEMORY MAPPING
B.4.1 MODBUS MEMORY MAP .................................................................................B-9
B.4.2 DATA FORMATS .............................................................................................B-80
C.1 OVERVIEW
C.1.1 INTRODUCTION................................................................................................C-1
C.1.2 COMMUNICATION PROFILES .........................................................................C-1
C.2 SERVER DATA ORGANIZATION
C.2.1 OVERVIEW........................................................................................................C-2
C.2.2 GGIO1: DIGITAL STATUS VALUES .................................................................C-2
C.2.3 GGIO2: DIGITAL CONTROL VALUES ..............................................................C-2
C.2.4 GGIO3: DIGITAL STATUS AND ANALOG VALUES FROM RECEIVED GOOSE
DATAC-2
C.2.5 GGIO4: GENERIC ANALOG MEASURED VALUES .........................................C-2
C.2.6 MMXU: ANALOG MEASURED VALUES...........................................................C-3
C.2.7 PROTECTION AND OTHER LOGICAL NODES ...............................................C-3
C.3 SERVER FEATURES AND CONFIGURATION
C.3.1 BUFFERED/UNBUFFERED REPORTING ........................................................C-5
C.3.2 FILE TRANSFER ...............................................................................................C-5
C.3.3 TIMESTAMPS AND SCANNING .......................................................................C-5
C.3.4 LOGICAL DEVICE NAME..................................................................................C-5
C.3.5 LOCATION.........................................................................................................C-5
C.3.6 LOGICAL NODE NAME PREFIXES ..................................................................C-6
C.3.7 CONNECTION TIMING .....................................................................................C-6
L90 Line Current Differential System ix