B–6 EPM 2200 POWER METER – INSTRUCTION MANUAL
MODBUS REGISTER MAP APPENDIX B: MODBUS MAPPING FOR EPM 2200
Phase Angle Block
14
read-only
1003 - 1003 4100 - 4100 Phase A Current SINT16 -1800 to +1800 0.1 degree 1
1004 - 1004 4101 - 4101 Phase B Current SINT16 -1800 to +1800 0.1 degree 1
1005 - 1005 4102 - 4102 Phase C Current SINT16 -1800 to +1800 0.1 degree 1
1006 - 1006 4103 - 4103 Angle, Volts A-B SINT16 -1800 to +1800 0.1 degree 1
1007 - 1007 4104 - 4104 Angle, Volts B-C SINT16 -1800 to +1800 0.1 degree 1
1008 - 1008 4105 - 4105 Angle, Volts C-A SINT16 -1800 to +1800 0.1 degree 1
Block Size: 6
Status Block
read-only
1387 - 1387 5000 - 5000 Meter Status UINT16 bit-mapped --exnpch
ssssssss
exnpch = EEPROM block
OK flags (e=energy,
x=max, n=min,
p=programmable settings,
c=calibration, h=header),
ssssssss = state (1=Run,
2=Limp, 10=Prog Set
Update via buttons,
12=Prog Set Update via
communication port.)
1
1388 - 1388 5001 - 5001 Not Used N/A
1389 - 138A 5002 - 5003 Time Since Reset UINT32 0 to 4294967294 4 msec wraps around after max
count
2
Block Size: 4
Commands Section
4
Resets Block
9
write-only
4E1F - 4E1F 20000 - 20000 Reset Max/Min Blocks UINT16 password
5
1
4E20 - 4E20 20001 - 20001 Reset Energy
Accumulators
UINT16 password
5
1
Block Size: 2
Meter Programming Block read/conditional write
55EF - 55EF 22000 - 22000 Initiate Programmable
Settings Update
UINT16 password
5
meter enters PS update
mode
1
55F0 - 55F0 22001 - 22001 Terminate
Programmable
Settings Update
3
UINT16 any value meter leaves PS update
mode via reset
1
55F1 - 55F1 22002 - 22002 Calculate
Programmable
Settings Checksum
3
UINT16 meter calculates
checksum on RAM copy of
PS block
1
55F2 - 55F2 22003 - 22003 Programmable
Settings Checksum
3
UINT16 read/write checksum
register; PS block saved in
EEPROM on write
8
1
55F3 - 55F3 22004 - 22004 Write New Password
3
UINT16 0000 to 9999 write-only register; always
reads zero
1
59D7 - 59D7 23000 - 23000 Initiate Meter
Firmware
Reprogramming
UINT16 password
5
1
Block Size: 6
Other Commands Block read/write
61A7 - 61A7 25000 - 25000 Force Meter Restart UINT16 password
5
causes a watchdog reset,
always reads 0
1
Block Size: 1
Table B–1: Modbus Register Map (Sheet 4 of 7)
Hex Decimal
Description
1
Format
Range
6
Units or
Resolution
Comments #
R
e
g
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