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Mnemonic
R31060F
KVA_B
R31062F
KVA_C
R31064F
PF_A
R31066F
PF_B
R31068F
PF_C
R31070F
KVA_TOTAL
R31072F
KW_TOTAL
R31074F
KVAR_TOTAL
R31076F
VOLTS_A
R31078F
VOLTS_B
R31080F
VOLTS_C
R31082F
VOLTS_AB
R31084F
VOLTS_BC
R31086F
VOLTS_CA
R31088F
PF
R31090F
KW_TOTAL_AT_KVA_MAX
R31092F
AMPS_A
R31094F
AMPS_B
R31096F
AMPS_C
R31098F
AMPS_N
R31100F
FREQUENCY
R31102
TIME_LEFT
R31103
NO_OF_RESET
R31104
NO_OF_PWR_FAILS
R31105
METER_ERROR
R31106
VOLTS_PHASE_ERR
R31107
LD_LG_PF_TOTAL
R31108
LD_LG_PF_A
R31109
LD_LG_PF_B
R31110
LD_LG_PF_C
R31111
DATA_RESET_FLAG
R31112F
PREV_ACCUM_WH
R31114F
PREV_ACCUM_VARH_LG
R31116F
PREV_ACCUM_VARH_LD
R31118
DATA_CLR_STATUS
Fixed Value Registers
R40000
PRODUCT_ID
R40002
---
R40003
MODBUS_ADDR
R40004L
SERIAL_NUM
R40006L
SW_REV
R40008
COC_REV
R40009
---
Setpoint Value Registers
R43000
HOUR
R43001
MIN
R43002
SEC
R43003
PASSWORD
R43005F
PULSE_VALUE_1
R43007F
PULSE_VALUE_2
R43009
PULSE_UNIT_1
R43010
PULSE_UNIT_2
R43011L
CONFIG_FLAG_1
5–4
Courtesy of NationalSwitchgear.com
Table 5–2: Modbus Memory Map (Sheet 2 of 3)
Contents
Apparent power (kVA), phase B
Apparent power (kVA), phase C
Power factor, Phase A
Power factor, Phase B
Power factor, Phase C
Apparent power (kVA), total of all phases
Real power (kW), total of all phases
Reactive power (kvar), total of all phases
L-N voltage, phase A-N
L-N voltage, phase B-N
L-N voltage, phase C-N
L-L voltage, phase A-B
L-L voltage, phase B-C
L-L voltage, phase C-A
Total power factor of all phases
Real power (KW), total of all phases at maximum kVA
Current, phase A
Current, phase B
Current, phase C
Neutral current
Frequency
Time left in demand interval
Number of resets
Number of power failures
Meter error flags
Voltage phase loss errors
Lead/lag qualifier for all phases (instantaneous)
Lead/Lag qualifier for phase A (instantaneous)
Lead/Lag qualifier for phase B (instantaneous)
Lead/Lag qualifier for phase C (instantaneous)
Data Resetting flags
Previous Accumulated Wh
Previous Accumulated varh lagging
Previous Accumulated varh leading
Data Cleared Status
Product Id
Reserved
Modbus Address
Serial Number
Firmware Revision
COC Software Revision
---
Hour
Minute
Seconds
Password
Pulse value interval time for pulse KYZ output 1
Pulse value interval time for pulse KYZ output 2
Pulse units for KYZ output 1
Pulse units for KYZ output 2
Programming flags
CHAPTER 5: COMMUNICATIONS
Range / Units
kVA
kVA
---
---
---
kVA
kW
kVAR
volts
volts
volts
volts
volts
volts
---
kW
amps
amps
amps
amps
Hz
seconds
0 to 255
0 to 255
---
---
0 to 1
0 to 1
0 to 1
0 to 1
---
Wh
varh
varh
0- Not Cleared1 -
Cleared
always 0Eh
---
33 to 215
---
00.00 to 99.99
---
---
0 to 23 hrs.
0 to 59 min.
0 to 59 sec.
always 00h
0 to 999.999999
0 to 999.999999
---
---
---
EPM 5100 ELECTRONIC POWER METER – USER GUIDE
R/W
Format
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F4
RO
F1
RO
F5
RO
F5
RO
F6
RO
F7
RO
F8
RO
F8
RO
F8
RO
F8
RO
F9
RO
F4
RO
F4
RO
F4
RO
F10
RO
F1
---
---
RO
F1
RO
F2
RO
F3
RO
F3
---
---
RW
F1
RW
F1
RW
F1
RO
F1
RO
F4
RO
F4
RO
F11
RO
F11
RO
F12
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