GE Industrial Solutions EPM1500 Single Point Submetering System - Manual (Page 43)

CHAPTER 4: COMMUNICATIONS
EPM 1500 SUB-METER– INSTRUCTION MANUAL 4–11
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.
07D1 2001 Demand Window Offset
16-bit Unsigned Integer
5, 15, or 30 minutes available
07D2 2002 I Multiplier Type Offset
16-bit Unsigned Integer
Internal calibration value
07D3 2003 Number of Pulse Counters Offset
16-bit Unsigned Integer
Number of external pulse inputs installed
07D4 2004 Overlap Offset
16-bit Unsigned Integer
Number of adjacent demand windows
that are averaged to determine peak
demand
07D5 2005 Number TOU's Offset
16-bit Unsigned Integer
Number of different TOU periods defined
in the time-of-use table
07D6 2006 MDT_M_TABLE_REG_START 16-bit Unsigned Integer
07D7 2007 NUM_MDT_M_TABLE_COLUMNS 16-bit Unsigned Integer
07D8 2008 NUM_MDT_M_TABLE_REGS 16-bit Unsigned Integer
07D9 2009 MDT_M_TABLE_REG_END 16-bit Unsigned Integer
* 32-bit floating point register.
+ 32-bit long integer - Range: 00000000h to FFFFFFFFh
Table 4–1: Modbus Memory Map (Sheet 4 of 4)
Hex
Addr
Addr Description R/W Units Notes