GE Industrial Solutions EPM4500 Submeter - Manual (Page 65)

CHAPTER 4: COMMUNICATIONS MODBUS MEMORY MAP
EPM 4500 SUB METER – INSTRUCTION MANUAL 4–23
Note
1. 32-bit floating point numbers are as per the IEEE 754-1985 standard.
2. Registers 0X0063 to 0X025E are all read-only and cannot be modified. They break
down as follows:
• Registers 0X0064 to 0X0122 are not real-time, but are populated with
stored interval data based on user inputs to registers 0X0040 to 0X0043.
• Registers 0X0162 to 0X025E are all real-time data registers.
0468* 1128 Meter #8 Phase Angle A R degrees Meter #8 Phase Angle
046A* 1130 Meter #8 Phase-to-Phase Voltage A R V Meter #8 Instantaneous Voltage
046C* 1132 Meter #8 THD Phase B R % Meter #8 Total Harmonic Distortion
046E* 1134 Meter #8 Phase Angle B R degrees Meter #8 Phase Angle
0470* 1136 Meter #8 Phase-to-Phase Voltage B R V Meter #8 Instantaneous Voltage
0472* 1138 Meter #8 THD Phase C R % Meter #8 Total Harmonic Distortion
0474* 1140 Meter #8 Phase Angle C R degrees Meter #8 Phase Angle
0476* 1142 Meter #8 Phase-to-Phase Voltage C R V Meter #8 Instantaneous Voltage
Counters
07D0 2000 Number of phases offset R
16-bit Unsigned Integer
1, 2, 3, or 24 phases available
07D1 2001 Demand Window Offset R
16-bit Unsigned Integer
5, 15, or 30 minutes available
07D2 2002 I Multiplier Type Offset R
16-bit Unsigned Integer
Internal calibration value
07D3 2003 Number of Pulse Counters Offset R
16-bit Unsigned Integer
Number of external pulse inputs installed
07D4 2004 Overlap Offset R
16-bit Unsigned Integer
Number of adjacent demand windows that are averaged
to determine peak demand
07D5 2005 Number TOU's Offset R
16-bit Unsigned Integer
Number of different TOU periods defined in the time-of-
use table
07D6 2006 MDT_M_TABLE_REG_START R 16-bit Unsigned Integer
07D7 2007 NUM_MDT_M_TABLE_COLUMNS R 16-bit Unsigned Integer
07D8 2008 NUM_MDT_M_TABLE_REGS R 16-bit Unsigned Integer
07D9 2009 MDT_M_TABLE_REG_END R 16-bit Unsigned Integer
* 32-bit floating point register.
+ 32-bit long integer - Range: 00000000h to FFFFFFFFh
Table 4–1: Modbus Memory Map (Sheet 15 of 15)
Hex
Addr
Addr Description R/W Units Notes