Modbus Memory Map Notes - GE Multilin EPM 6000 Instruction Manual

CHAPTER 5: COMMUNICATIONS
HEX
DESCRIPTION
ADDRESS
7550 - 7554 Limit #2
7555 - 7559 Limit #3
755A - 755E Limit #4
755F - 7563 Limit #5
7564 - 7568 Limit #6
7569 - 756D Limit #7
756E - 7572 Limit #8
SECONDARY READINGS SECTION
Secondary Block
9C40 - 9C40 System Sanity Indicator UINT16
9C41 - 9C41 Volts A-N
9C42 - 9C42 Volts B-N
9C43 - 9C43 Volts C-N
9C44 - 9C44 Amps A
9C45 - 9C45 Amps B
9C46 - 9C46 Amps C
9C47 - 9C47 Watts, 3-Ph total
9C48 - 9C48 VARs, 3-Ph total
9C49 - 9C49 VAs, 3-Ph total
9C4A - 9C4A Power Factor, 3-Ph total UINT16
9C4B - 9C4B Frequency
9C4C - 9C4C Volts A-B
9C4D - 9C4D Volts B-C
9C4E - 9C4E Volts C-A
9C4F - 9C4F CT numerator
9C50 - 9C50 CT multiplier
9C51 - 9C51 CT denominator
9C52 - 9C52 PT numerator
9C53 - 9C53 PT multiplier
9C54 - 9C54 PT denominator
9C55 - 9C56 W-hours, Positive
9C57 - 9C58 W-hours, Negative
9C59 - 9C5A VAR-hours, Positive
9C5B - 9C5C VAR-hours, Negative
9C5D - 9C5E VA-hours
9C5F - 9C5F Neutral Current
9C60 - 9CA2 Reserved
Reset Energy
9CA3 - 9CA3
Accumulators
5.1.3

Modbus Memory Map Notes

EPM 6000 MULTI-FUNCTION POWER METERING SYSTEM – USER GUIDE
1
FORMAT RANGE
SINT16
SINT16
SINT16
SINT16 same as Limit #1
SINT16
SINT16
SINT16
0 or 1
UINT16 2047 to 4095
UINT16 2047 to 4095
UINT16 2047 to 4095
UINT16 0 to 4095
UINT16 0 to 4095
UINT16 0 to 4095
UINT16 0 to 4095
UINT16 0 to 4095
UINT16 2047 to 4095
1047 to 3047
UINT16 0 to 2730
UINT16 2047 to 4095
UINT16 2047 to 4095
UINT16 2047 to 4095
UINT16 1 to 9999
UINT16 1, 10, 100
UINT16 1 or 5
UINT16 1 to 9999
UINT16 1, 10, 100
UINT16 1 to 9999
UINT32 0 to 99999999
UINT32 0 to 99999999
UINT32 0 to 99999999
UINT32 0 to 99999999
UINT32 0 to 99999999
UINT16 0 to 4095
N/A N/A
5
UINT16
password
The memory map notes are indicated by number below.
1. All registers not explicitly listed in the table read as 0. Writes to these registers will be
accepted but won't actually change the register (since it doesn't exist).
UNITS OR
6
RESOLUTION
same as Limit #1 same as Limit #1
Block Size:
read-only except as noted
none 0 indicates proper meter operation
volts 2047= 0, 4095= +150
volts
volts = 150 * (register - 2047) / 2047
volts
amps 0= -10, 2047= 0, 4095= +10
amps
amps = 10 * (register - 2047) / 2047
amps
watts 0= -3000, 2047= 0, 4095= +3000
VARs watts, VARs, VAs =
VAs 3000 * (register - 2047) / 2047
1047= -1, 2047= 0, 3047= +1
none
pf = (register - 2047) / 1000
0= 45 or less, 2047= 60, 2730= 65 or
Hz more
freq = 45 + ((register / 4095) * 30)
volts 2047= 0, 4095= +300
volts
volts = 300 * (register - 2047) / 2047
volts
none
CT = numerator * multiplier /
none
denominator
none
none
PT = numerator * multiplier /
none
denominator
none
Wh per energy format * 5 to 8 digits
* decimal point implied, per energy
Wh per energy format
format
VARh per energy format * resolution of digit before decimal
point = units, kilo, or mega, per energy
VARh per energy format
format
VAh per energy format * see note 10
amps see Amps A/B/C above
none
write-only register; always reads as 0
Block Size:
COMMENTS # REG
5
5
5
5
5
5
5
68
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
1
67
1
100
5–7