Connect Eastron to the computer through a USB-to-serial or RS485 adapter and read its registers in your browser: click "Read register values online" under the model (Chrome or Edge, nothing to install). The tables below list the MODBUS offset, unit, data type and scale of every register shown.
For logging 24/7 into a database, CSV files or Excel, use the Advanced Serial Data Logger (for MODBUS RTU) or Advanced TCP/IP Data Logger (for MODBUS TCP): they poll the complete map of every model on this page and provide continuous Eastron data logger and record.
Registers in the map: 240 (the first 50 are listed below; the browser reader and the data loggers use the complete map). function 4 (input registers). byte order big-endian. data types: single, string.
MODBUS offset
Description
Units
Data type
Scale
0
Line to neutral
V
single
6
Current
A
single
12
Power
W
single
18
Apparent power
VA
single
24
Reactive power
var
single
30
Power factor
single
36
Phase angle
deg
single
70
Frequency of supply voltages
Hz
single
72
Import wh since last reset
kWh/MWh
single
74
Export wh since last reset
kWh/MWh
single
342
Total
kWh
single
529
Total last 1 month energy, Total
kWh
single
533
Total last 1 month energy, Rate 1
kWh
single
537
Total last 1 month energy, Rate 2
kWh
single
545
Total last 2 month energy, Total
kWh
single
549
Total last 2 month energy, Rate 1
kWh
single
553
Total last 2 month energy, Rate 2
kWh
single
561
Total last 3 month energy, Total
kWh
single
565
Total last 3 month energy, Rate 1
kWh
single
569
Total last 3 month energy, Rate 2
kWh
single
577
Total last 4 month energy, Total
kWh
single
581
Total last 4 month energy, Rate 1
kWh
single
585
Total last 4 month energy, Rate 2
kWh
single
593
Total last 5 month energy, Total
kWh
single
597
Total last 5 month energy, Rate 1
kWh
single
601
Total last 5 month energy, Rate 2
kWh
single
609
Total last 6 month energy, Total
kWh
single
613
Total last 6 month energy, Rate 1
kWh
single
617
Total last 6 month energy, Rate 2
kWh
single
625
Total last 7 month energy, Total
kWh
single
629
Total last 7 month energy, Rate 1
kWh
single
633
Total last 7 month energy, Rate 2
kWh
single
641
Total last 8 month energy, Total
kWh
single
645
Total last 8 month energy, Rate 1
kWh
single
649
Total last 8 month energy, Rate 2
kWh
single
657
Total last 9 month energy, Total
kWh
single
661
Total last 9 month energy, Rate 1
kWh
single
665
Total last 9 month energy, Rate 2
kWh
single
673
Total last 10 month energy
kWh
single
689
Total last 11 month energy, Total
kWh
single
693
Total last 11 month energy, Rate 1
kWh
single
697
Total last 11 month energy, Rate 2
kWh
single
705
Total last 12 month energy, Total
kWh
single
709
Total last 12 month energy, Rate 1
kWh
single
713
Total last 12 month energy, Rate 2
kWh
single
2000
Import energy rate 1
kWh
single
2002
Import energy rate 2
kWh
single
2004
Import energy rate 3
kWh
single
2006
Import energy rate 4
kWh
single
2256
Export energy rate 1
kWh
single
This is not the complete map: 50 of 240 registers are listed above. Click "Read register values online" to read any register of your device in the browser, or download the program to log the complete map.
Registers in the map: 87 (the first 52 are listed below; the browser reader and the data loggers use the complete map). function 3 (holding registers). function 4 (input registers). byte order big-endian. data types: dword, single.
MODBUS offset
Description
Units
Data type
Scale
22
Pulse 1 Divisor
single
64512
Serial number
dword
0
Phase 1 line to neutral
V
single
2
Phase 2 line to neutral
V
single
4
Phase 3 line to neutral
V
single
6
Phase 1 current
A
single
8
Phase 2 current
A
single
10
Phase 3 current
A
single
12
Phase 1 power
W
single
14
Phase 2 power
W
single
16
Phase 3 power
W
single
18
Phase 1 apparent power
VA
single
20
Phase 2 apparent power
VA
single
24
Phase 1 reactive power
var
single
26
Phase 2 reactive power
var
single
28
Phase 3 reactive power
var
single
30
Phase 1 power factor
single
32
Phase 2 power factor
single
34
Phase 3 power factor
single
36
Phase 1 phase angle
deg
single
38
Phase 2 phase angle
deg
single
40
Phase 3 phase angle
deg
single
42
Average line to neutral
V
single
46
Average line current
A
single
48
Sum of line currents
A
single
52
Total system power
W
single
56
Total system
VA
single
60
Total system
var
single
62
Total system power factor
single
66
Total system phase angle
deg
single
70
Frequency of supply voltages
Hz
single
72
Import wh since last reset
kWh/M Wh
single
74
Export wh since last reset
kWh/MWh
single
76
Import varh since last reset
kvarh/Mvarh
single
78
Export varh since last reset
kvarh/Mvarh
single
80
Vah since last reset
kVAh/ MVAh
single
82
Ah since last reset
Ah/kAh
single
84
Total system power demand
W
single
86
Maximum total system power
W
single
100
Total system va demand
VA
single
102
Maximum total system va demand
VA
single
104
Neutral current demand
A
single
106
Maximum neutral current demand
A
single
200
Line 1 to line 2
V
single
202
Line 2 to line 3
V
single
204
Line 3 to line 1
V
single
206
Average line to line
V
single
224
Neutral current
A
single
234
Phase 1 l/n volts thd
%
single
236
Phase 2 l/n volts thd
%
single
238
Phase 3 l/n volts thd
%
single
240
Phase 1 current thd
%
single
This is not the complete map: 52 of 87 registers are listed above. Click "Read register values online" to read any register of your device in the browser, or download the program to log the complete map.
Note: Products and companies mentioned here are used only for definition and identification purposes and can be trademarks and/or registered trademarks of the respective companies.
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