APPENDIX B: MODBUS MAPPING FOR EPM 2200 MODBUS REGISTER MAP
EPM 2200 POWER METER – INSTRUCTION MANUAL B–7
Encryption Block
read/write
658F - 659A 26000 - 26011 Perform a Secure
Operation
UINT16 encrypted command to
read password or change
meter type
12
Block Size: 12
Programmable Settings Section (See note 15)
Basic Setups Block write only in PS update
mode
752F - 752F 30000 - 30000 CT multiplier &
denominator
UINT16 bit-mapped dddddddd
mmmmmmmm
high byte is denominator
(5, read-only),
low byte is multiplier (1, 10,
or 100)
1
7530 - 7530 30001 - 30001 CT numerator UINT16 1 to 9999 none 1
7531 - 7531 30002 - 30002 PT numerator UINT16 1 to 9999 none 1
7532 - 7532 30003 - 30003 PT denominator UINT16 1 to 9999 none 1
7533 - 7533 30004 - 30004 PT multiplier & hookup UINT16 bit-mapped mmmmmmmm
MMMMhhhh
MMMMmmmmmmmm is
PT multiplier (1, 10, 100,
1000),
hhhh is hookup
enumeration (0 = 3
element wye[9S], 1 = delta
2 CTs[5S], 3 = 2.5 element
1
7534 - 7534 30005 - 30005 Averaging Method UINT16 bit-mapped --iiiiii b----sss iiiiii = interval (5,15,30,60)
b = 0-block or 1-rolling
sss = # subintervals
(1,2,3,4)
1
7535 - 7535 30006 - 30006 Power & Energy
Format
UINT16 bit-mapped pppp--nn -eee-
ddd
pppp = power scale (0-
unit, 3-kilo, 6-mega, 8-
auto)
nn = number of energy
digits (5-8 --> 0-3)
eee = energy scale (0-unit,
3-kilo, 6-mega)
ddd = energy digits after
decimal point (0-6)
See note 10.
1
7536 - 7536 30007 - 30007 Operating Mode
Screen Enables
UINT16 bit-mapped 00000000
eeeeeeee
eeeeeeee = op mode
screen rows on(1) or off(0),
rows top to bottom are
bits low order to high order
1
7537 - 753D 30008 - 30014 Reserved 7
753E - 753E 30015 - 30015 User Settings Flags UINT16 bit-mapped ---g--nn srp--wf- g = enable alternate full
scale bargraph current
(1=on, 0=off)
nn = number of phases for
voltage & current screens
(3=ABC, 2=AB, 1=A, 0=ABC)
s = scroll (1=on, 0=off)
r = password for reset in
use (1=on, 0=off)
p = password for
configuration in use (1=on,
0=off)
w = pwr dir (0-view as
load, 1-view as generator)
f = flip power factor sign
(1=yes, 0=no)
1
Table B–1: Modbus Register Map (Sheet 5 of 7)
Hex Decimal
Description
1
Format
Range
6
Units or
Resolution
Comments #
R
e
g
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