GE Industrial Solutions EPM4500 Submeter - Manual (Page 4)

TOCTOC–II EPM 4500 SUB METER – INSTRUCTION MANUAL
V ERIFYING V OLTAGE ........................................................................................................... 3-5
V ERIFYING K W H R EADING ................................................................................................. 3-5
V ERIFYING C URRENT AND E NERGY ................................................................................... 3-6
RESETTING THE DEMAND VALUES ........................................................................................... 3-7
P ROCEDURE .......................................................................................................................... 3-7
4: COMMUNICATIONS MODBUS COMMUNICATIONS ..................................................................................................... 4-1
RS485 W IRING FOR M ODBUS ......................................................................................... 4-1
RS232 W IRING FOR M ODBUS ......................................................................................... 4-2
M ODBUS C OMMANDS ......................................................................................................... 4-2
F IXED M ODBUS V ALUES ..................................................................................................... 4-2
M ODBUS D ATA R EGISTER (R4 T YPE ) G ROUPS ................................................................ 4-3
I NSTANTANEOUS D ATA I TEMS ............................................................................................ 4-3
32- BIT L ONG AND F LOAT D ATA F ORMATS ..................................................................... 4-4
MODBUS ACTIVATION .................................................................................................................... 4-5
O VERVIEW ............................................................................................................................ 4-5
C ONFIGURING A N EW H YPER T ERMINAL S ESSION .......................................................... 4-5
C ONFIRMING C ONNECTION TO THE EPM4500 ............................................................. 4-6
L OGGING INTO THE M ETER ................................................................................................ 4-6
A CTIVATING M ODBUS C OMMUNICATIONS ....................................................................... 4-7
C HANGING M ODBUS S ETTINGS ......................................................................................... 4-8
L OGGING O UT ...................................................................................................................... 4-8
D ISABLING M ODBUS C OMMUNICATIONS ......................................................................... 4-8
MODBUS MEMORY MAP ................................................................................................................ 4-9
M EMORY M AP ...................................................................................................................... 4-9
5: MISCELLANEOUS REVISION HISTORY .......................................................................................................................... 5-1
R ELEASE D ATES ................................................................................................................... 5-1
C HANGES TO THE M ANUAL ................................................................................................ 5-2
WARRANTY ......................................................................................................................................... 5-4
GE E NERGY W ARRANTY ..................................................................................................... 5-4