Eastron DCM230 User manual

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 1 -
⚫Measures kWh, W, V, A etc.
⚫Bi-directional measurement IMP & EXP
⚫Pulse output
⚫RS485 Modbus
⚫Din rail mounting 35mm
⚫DC shunt connection
⚫Class 1
DCM230 DC Energy Meter
User Manual V1.5
2021

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
-2 -
Introduction
Eastron DCM230 series DC energy meters are designed for measuring and monitoring in DC systems. The din rail DC
energy meters can measure of important DC parameters: Village,. current, power and energy etc. It also support bi-
directional measurement with pulse output. All data in the meter are accessible via RS485 using Modbus RTU. The
meter has two versions working with AC or DC power supply. Input voltage range up to 300, 600, 1000V DC, and
current inputs are flexible with DC shunt and current sensors. The multi-tariff version has a RTC equipped inside, it
can provides multi-tariff information and monthly records.
PART 1 Specification
Model list

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
-3 -
5~300V DC, 5~600V DC, 5~1000V DC
85~300V AC (DCM230-1)
or 9-60V DC (DCM230-2)
75mV (default)
60mV, 45mV (optional)
0~2000A
≤ 2W / 5VA
4400V/ 1min
6.4kV - 1.2/50µS waveform
1, 10, 100, 1000imp/kWh (default)
60, 100 (default), 200mS
Total kWh/ import kWh/ export kWh
LCD with backlit
999999.9kWh
220g
General Specifications
Voltage DC Input
Auxiliary Supply
DC Shunt Input
Current Range
Power consumption
AC voltage withstand
Impulse voltage
withstand Pulse output
Pulse duration
Pulse output indicate
Display
Max. Reading
Weight
Standard
Accuracy class
GB/T 33708-2017
Unit Characteristics
The Unit can measure and display:
⚫voltage
⚫Currents
⚫Power
⚫Active energy imported and exported
Pulse output indicates real-time energy measurement. An RS485 output allows remote monitoring from another
display or a computer.
1 (max. 1% measurement deviation)

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
-4 -
Shunt Primary Current
The unit can be configured to operate with primary current and secondary input.
Primary current range: 0~2000A.
Second input: 75mV in default (45mV, 60mV optional)
RS485 Output for Modbus RTU
For Modbus RTU, the following RS485 communication parameters can be configured from the Set-up menu:
Baud rate 1200,2400, 4800, 9600,19200 bps
Parity none (default)/odd/even
Stop bits 1 or 2
RS485 network address nnn – 3-digit number, 001 to 247
Modbus™ Word order
Hi/Lo byte order is set automatically to normal or reverse. It cannot be configured from the set-up menu.
Set-up screens are provided for setting up the RS485 port.
Pulse output
The unit provides a pulse output. The constant can be configured to below:
1000 imp/kwh
100 imp/kWh
10 imp/kWh
1 imp/kWh
Pulse width: 200/100(default)/60 ms.
Note: the relationship between pulse constant and CT1
CT1 setting
Default pulse constant
Settable pulse constant
1 – 20
1000 imp/kWh
1000,100,10,1 imp/kWh
21 – 200
100 imp/kWh
100,10,1 imp/kWh
201 – 2000
10 imp/kWh
10,1 imp/kWh
*when the CT setting on meter is 2000A, the default pulse constant is 10 imp/kWh and it can be set to 10 imp/kWh
or 1 imp/kWh.

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 5 -
*Over-current alarm: Alarm will happened when the current is over the CT1 value set on the meter. The Alarm LED
will stay solid and the corresponding register value will be changed. The user can read this register through
communication to determine whether an overcurrent alarm has occurred.
The pulse outputs can be set to generate pulses to represent Import kWh/ Export kWh/ total kWh.
The pulse output is passive type, complies with IEC62053-31 Class A.
Environment
Operating temperature -25℃ to +70℃
Reference temperature 23℃±2℃
Relative humidity 0 to 90%, non-condensing
Altitude up to 2000m
Installation category CAT II
Mechanical Environment M1
Electromagnetic environment E2
Degree of pollution 2
Mechanics
Din rail dimensions 36x99x63 (WxHxD) DIN 43880
Mounting DIN rail 35mm
Sealing IP51 (indoor)
Material Self-extinguishing UL94V-0

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 6 -
PART 2 Operation
Initialization Display
When it is powered on, the meter will initialize and do self-checking.
Full Screen (stay 2s)
Software Version (stay 2s)
Current Modbus address
(stay 2s)

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 7 -
Current baud rate (stay 2s)
Total active energy(kWh)
Total=Import+ Export
Max read: 999999.9 kWh
Buttons function
There are two buttons on the front panel.
>Scroll the display for data checking.
>Changing option at Set-up mode
>Exit the Set-up mode
>Set-up mode entry
>Confirmation

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 8 -
Scroll display
After initialization and self-checking program, the meter displays the measured values. The default page is total
kWh. If the user wants to check other information, please press the scroll button on the front panel.
Total active energy(kWh)
Total=Import+ Export
Display format:
5+2 -> 6+1 -> 5+2
99999.99 -> 100000.0 ->
999999.9 -> 00000.00
Partial resettable active
energy
Display format:
5+2 -> 6+1 -> 5+2
99999.99 -> 100000.0 ->
999999.9 -> 00000.00
T1~T4: total kWh
*Multi-tariff version only

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 9 -
Voltage
Current
Power
Display format:
<1000 W: XXX W
<1000kW: XXX.XXX kW
For other value: XXXX.XX kW
Pulse constant

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 10 -
CT1 Primary current
Meter address
Baud rate
Parity

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 11 -
Date
*Multi-tariff version only
Time
*Multi-tariff version only
Software Version

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 12 -
Set-up Mode
To get into Set-up Mode, the user need press the “Enter” button for 3 second.
Page
Display
Descriptions
1
Password
To get into Set-up mode, it asks a password
confirmation. Default password: 1000
Use and to enter correct password.
2
Keep pressing for 3 second, the current selection
will flash, use and to change the Modbus
address. Options: 1~247
Keep press for 3s to confirm the selection.
3
Keep pressing for 3 second, the current selection
will flash, use and to change the Baud rate.
Options: 1.2k, 2.4k,4.8k,9.6k ( default ),19.2k
Keep press for 3s to confirm the selection.
4
Keep pressing for 3 second, the current selection
will flash, use and to change the Parity.
Options: EVEN,ODD,NONE ( default )

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 13 -
5
Keep pressing for 3 second, the current selection
will flash, use and to change the type of
Pulse Output.
Options: total kWh, IMP kWh, EXP kWh
6
Keep pressing for 3 second, the current selection
will flash, use and to change the pulse
constant.
Options: 1000, 100, 10, 1 imp/kWh
*Default pulse constant is related to the CT1 setting
7
Keep pressing for 3 second, the current selection
will flash, use and to change the pulse
width.
Options: 60, 100, 200, unit: ms
8
Use to select the CT1 option. Keep pressing
for 3 second, the current selection will flash, use
and to enter the Primary current. The range
is from 0001 to 2000. For example, if using a 100A/75mV
current transformer, the CT1 shall be 0100.
Keep press for 3s to confirm the selection.
Deafult : 1A

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 14 -
9
Keep pressing for 3 second, the current selection
will flash, use and to change the
DIT(Demand Integration Time).
Options: 0,5,8,10,15,20,30,60( default)
10
Use to select the scroll display time option. Keep
pressing for 3 second, the current selection will
flash, use and to enter the options:
0~60s.
Default: 0 s, represent do not scroll display
11
Use to select the backlit time option. Keep
pressing for 3 second, the current selection will
flash, use and to enter the options:
0,5,10,20,30,60 minutes. 0 means the light is always
on.
Default: 60 minutes
12
Use to select the Password option. Keep pressing
for 3 second, the current selection will flash, use
and to enter the new password. The
range is from 0001 to 9999.
Default: 1000

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 15 -
13
Shunt wiring
Use to select the shunt connection option. Keep
pressing for 3 second, the current selection will
flash, use to choose the connection way.
Option: N, P
N: Negative type (default)
P: Positive type
14
Use to select the date interface, Keep pressing
for 3 second.
*Multi-tariff version only
14-1
the current selection will flash, use and
to set the correct date information.
*Multi-tariff version only
15
Use to select the time interface, Keep pressing
for 3 second.
*Multi-tariff version only

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 16 -
15-1
the current selection will flash, use and
to set the correct time information
*Multi-tariff version only
16
Tariff information ( for view only and cannot be set)
*Multi-tariff version only
16-1
T1 means tariff number
Range from T1-T4
T0 means invalid rate number.
01 means serial number.
Range: 01-08
18:00 mean the starting time of current tariff number.
Keep pressing button to exit the set-up mold.

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 17 -
Wiring diagram
Terminal Connection
AC Power Supply:
DC Power Supply:
Shunt Connection
Positive Type:
Negative Type:

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 18 -
Dimensions

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 19 -
PART 3 Modbus Protocol
Input registers are used to indicate the present values of the measured and calculated electrical quantities.
Each parameter is held in two consecutive16 bit register. The following table details the 3X register address,
and the values of the address bytes within the message. A (*) in the column indicates that the parameter
is valid for the particular wiring system. Any parameter with a cross(X) will return the value zero. Each
parameter is held in the 3X registers. Modbus Protocol function code 04 is used to access all parameters.
For example, to request: Amps 1 Start address=0006
No. of registers =0002
Amps 2 Start address=0008
No. of registers=0002
Each request for data must be restricted to 40 parameters or less. Exceeding the 40 parameter limit will cause
a Modbus Protocol exception code to be returned.
Address
(Register
)
SDM230-Modbus Input Register
Parameter
Modbus
Protocol Start
Address Hex
Description
Length
(bytes)
Data
Format
Units
Hi
Byte
Lo
Byte
30001
Line to neutral volts.
4
Float
V
00
00
30007
Current.
4
Float
A
00
06
30013
Active power.
4
Float
W
00
0C
30073
Import active energy
4
Float
kWh
00
48
30075
Export active energy
4
Float
kWh
00
4A
30085
Total system power demand
4
Float
W
00
54
30087
Maximum total system power demand
4
Float
W
00
56
30343
Total active energy
4
Float
kWh
01
56
30385
Resettable partial kWh
4
Float
kWh
01
80

Eastron DCM230 User Manual
B+G e-tech GmbH (EASTRON Germany) Fr.-Mehring St. 36 DE 01979 Lauchhammer
Fax: [phone] Web: www.eastron-germany.de
- 20 -
34877
Total active Energy Rate 1
4
Float
kWh
13
0C
34879
Total active Energy Rate 2
4
Float
kWh
13
0E
34881
Total active Energy Rate 3
4
Float
kWh
13
10
34883
Total active Energy Rate 4
4
Float
kWh
13
12
34885
Import active Energy Rate 1
4
Float
kWh
13
14
34887
Import active Energy Rate 2
4
Float
kWh
13
16
34889
Import active Energy Rate3
4
Float
kWh
13
18
34891
Import active Energy Rate 4
4
Float
kWh
13
1A
34893
Export active Energy Rate 1
4
Float
kWh
13
1C
34895
Export active Energy Rate 2
4
Float
kWh
13
1E
34897
Export active Energy Rate 3
4
Float
kWh
13
20
34899
Export active Energy Rate 4
4
Float
kWh
13
22
38193
Total Last 1 month active Energy
(Total、Rate1、Rate2、Rate3、Rate4)
20
Float
kWh
20
00
38203
Total Last 2 month active Energy
(Total、Rate1、Rate2、Rate3、Rate4)
20
Float
kWh
20
0A
38213
Total Last 3 month active Energy
(Total、Rate1、Rate2、Rate3、Rate4)
20
Float
kWh
20
14
38223
Total Last4 month active Energy
(Total、Rate1、Rate2、Rate3、Rate4)
20
Float
kWh
20
1E
38233
Total Last 5 month active Energy
(Total、Rate1、Rate2、Rate3、Rate4)
20
Float
kWh
20
28
38243
Total Last 6 month active Energy
(Total、Rate1、Rate2、Rate3、Rate4)
20
Float
kWh
20
32
38253
Total Last 7 month active Energy
(Total、Rate1、Rate2、Rate3、Rate4)
20
Float
kWh
20
3C
38263
Total Last 8 month active Energy
20
Float
kWh
46