Eastron SDM230-Modbus User manual

Eastron SDM230-Modbus User Manual
Jiaxing Eastron Electronic Instruments Co.,Ltd. Tel: [phone] Fax: [phone]
Add:No.1369, Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: [e-mail]
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SDM230-Modbus
Single-Phase Two Module DIN rail Meters
Measures kWh, Kvarh, KW, Kvar, KVA, PF, Hz, dmd, V, A, etc.
Bi-directional measurement IMP & EXP
Two pulse outputs
RS485 Modbus
Din rail mounting 35mm
100A direct connection
Better than Class 1 / B accuracy
User Manual V1.4
2015

Eastron SDM230-Modbus User Manual
Jiaxing Eastron Electronic Instruments Co.,Ltd. Tel: [phone] Fax: [phone]
Add:No.1369, Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: [e-mail]
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Application
The energy-meters “with a blue back-lighted LCD screen for prefect reading” are used to measure single-phase like
residential, Utility and Industrial application. The unit measures and displays various important electrical
parameters, and provide a communication port for remote reading and monitoring. Bi-directional energy
measurement makes the unit a good choice for solar PV energy metering.
PART 1 Specification
General Specifications
Voltage AC (Un) 230V
Voltage Range 176~276V AC
Base Current (Ib) 10A
Max. Current (Imax) 100A
Mini Current (Imin) 0.5A
Starting current 0.4% of Ib
Power consumption <2W/10VA
Frequency 50/60Hz(±10%)
AC voltage withstand 4KV for 1 minute
Impulse voltage withstand 6KV-1.2uS wavform
Overcurrent withstand 30Imax for 0.01s
Pulse output rate 1000imp/kWh (default)
1000/100/10/1 imp/kWh/kVarh (configurable)
Display LCD with blue backlit
Max. Reading 999999.9kWh
Accuracy
Voltage 0.5% of range maximum
Current 0.5% of nominal
Frequency 0.2% of mid-frequency
Power factor 1% of Unity
Active power 1% of range maximum
Reactive power 1% of range maximum
Apparent power 1% of range maximum
Active energy Class 1 IEC62053-21
Class B EN50470-3
Reactive energy 1% of range maximum

Eastron SDM230-Modbus User Manual
Jiaxing Eastron Electronic Instruments Co.,Ltd. Tel: [phone] Fax: [phone]
Add:No.1369, Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: [e-mail]
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Environment
Operating temperature -25℃to +55℃
Storage and transportation temperature -40℃to +70℃
Reference temperature 23℃±2℃
Relative humidity 0 to 95%, non-condensing
Altitude up to 2500m
Warm up time 10s
Installation category CAT III
Mechanical Environment M1
Electromagnetic environment E2
Degree of pollution 2
Output
Pulse Output
The meter provides two pulse outputs. Both pulse outputs are passive type.
Pulse output 1 is configurable. The pulse output can be set to generate pulses to represent total / import/export
kWh or kVarh.
The pulse constant can be set to generate 1 pulse per: 0.001(default) /0.01/0.1/1kWh/kVarh.
Pulse width: 200/100/60ms
Pulse output 2 is non-configurable. It is fixed up with import kWh. The constant is 1000imp/kWh.
RS485 output for Modbus RTU
The meter provides a RS485 port for remote communication. Modbus RTU is the protocol applied. For Modbus
RTU, the following RS485 communication parameters can be configured from the Set-up menu.
Baud rate: 1200, 2400, 4800, 9600
Parity: NONE/EVEN/ODD
Stop bits:1 or 2
Modbus Address: 1 to 247
Mechanics
Din rail dimensions 36x99x63 (WxHxD) DIN 43880
Mounting DIN rail 35mm
Sealing IP51 (indoor)
Material self-extinguishing UL94V-0

Eastron SDM230-Modbus User Manual
Jiaxing Eastron Electronic Instruments Co.,Ltd. Tel: [phone] Fax: [phone]
Add:No.1369, Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: [e-mail]
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LCD display
Item
Descriptions
1
7 digits used to display measured values or RTC
2
Total value
4
Import information, Export information
5
Max. Demand for Power or Current
6
Pulse output 1 and Pulse output 2
7
Measurement units
8
PF = power factor Hz = frequency
9
Bar display of Power
10
Communication indicator
11
Time information
12
Low battery warning
13
Lock symbol
PART 2 Operation
Initialization Display
When it is powered on, the meter will initialize and do self-checking.
Full screen software version Modbus ID Baud rate total kWh
Scroll display by Button
After initialization and self-checking program, the meter display the measured values. The default page is total
kWh. If the user wants to check other information, he needs to press the scroll button on the front panel.
The display order by scroll button :
Total kWhimport kWhexport kWhtotal kVarhimport kVarhexport kVarh
Max. power demandvoltagecurrentWVarVApower factor 
frequencypulse constantModbus ID baudrate.
The display order by scroll button :
Total kWhimport kWhexport kWhresettable KWhtotal kVarhimport kVarhexport kVarh
resettable kVarhMax. power demandvoltagecurrentWVarVApower factor 
frequencypulse constantModbus ID baud ratecontinuous running time.

Eastron SDM230-Modbus User Manual
Jiaxing Eastron Electronic Instruments Co.,Ltd. Tel: [phone] Fax: [phone]
Add:No.1369, Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: [e-mail]
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Page
Display
Descriptions
1
Total active energy
Example:70.00kWh
2
Import active energy
Example: 50.00kWh
3
Export active energy
Example: 20.00kWh
4
Total resettable energy
5
Total reactive energy
Example: 10.00kVarh
6
Import reactive energy
Example: 5.00kVarh
7
Export reactive energy
Example: 5.00kVarh

Eastron SDM230-Modbus User Manual
Jiaxing Eastron Electronic Instruments Co.,Ltd. Tel: [phone] Fax: [phone]
Add:No.1369, Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: [e-mail]
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8
Total resettable reactive energy
9
Total max. demand
Example: 6930W
10
Voltage
Example: 229.8V
11
Current
Example: 30.156A
12
Active Power
Example: 4700W
13
Reactive Power
Example: 1030Var
14
Apparent power
Example: 4811VA

Eastron SDM230-Modbus User Manual
Jiaxing Eastron Electronic Instruments Co.,Ltd. Tel: [phone] Fax: [phone]
Add:No.1369, Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: [e-mail]
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15
Power factor
Example: 1.000
16
Frequency
Example: 49.99Hz
17
Pulse Constant
Example: 1000
18
Modbus Address
Example: 001
19
Baud rate
Example: 9600
20
Continuous running time(In total)

Eastron SDM230-Modbus User Manual
Jiaxing Eastron Electronic Instruments Co.,Ltd. Tel: [phone] Fax: [phone]
Add:No.1369, Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: [e-mail]
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Set-up Mode
To get into Set-up Mode, the user need press the “Enter” button for 3 second.
Page
Display
Descriptions
The setting is done correctly
The entering information is wrong. The
operation fails.
1
Password
To get into Set-up mode, it asks a password
confirmation.
Default password: 1000
2
Address ID
Default ID is 001
Range: 001~247
2-1
Press the “Enter” button, the first digit
flash.
Press the “Scroll” button to change the
value. After choose the new address value,
the user need pressing the “Enter” button
to confirm the setting.
3
Baud rate
Default value: 2400bps
Range: 1200, 2400, 4800, 9600bps.

Eastron SDM230-Modbus User Manual
Jiaxing Eastron Electronic Instruments Co.,Ltd. Tel: [phone] Fax: [phone]
Add:No.1369, Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: [e-mail]
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3-1
Press the “Enter” button, the red digit flash.
Press the “Scroll” button to change the
value.
After choose the new baud rate, the user
need pressing the “Enter” button to confirm
the setting.
4
Parity
Default: None
Option：None, Even, Odd
4-1
Press the “Enter” button, the red part flash.
Press the “Scroll” button to change the
option.
After choose the new Parity, the user need
pressing the “Enter” button to confirm the
setting.
5
Pulse Output
Default: Export kWh
Option：kWh / KVarh / Imp. Kwh /
Exp.kWh / Imp.kVarh / Exp.kVarh
5-1
Press the “Enter” button, the red part flash.
Press the “Scroll” button to change the
option.
After choose the new Pulse output option,
the user need pressing the “Enter” button
to confirm the setting.
6
Pulse Constant
Default: 1000
Option: 1000 / 100 / 10 / 1
6-1
Press the “Enter” button, the red part flash.
Press the “Scroll” button to change the
option.
After choose the new Pulse constant option,
the user need pressing the “Enter” button
to confirm the setting.

Eastron SDM230-Modbus User Manual
Jiaxing Eastron Electronic Instruments Co.,Ltd. Tel: [phone] Fax: [phone]
Add:No.1369, Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: [e-mail]
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7
Pulse duration
Default: 100mS
Option: 200 / 100 / 60ms
7-1
Press the “Enter” button, the red part flash.
Press the “Scroll” button to change the
option.
After choose the new Pulse duration option,
the user need pressing the “Enter” button
to confirm the setting.
8
Demand Integration Time
Default: 15 minutes
Option: 0 / 5 / 10 / 15 / 30 / 60
8-1
Press the “Enter” button, the red part flash.
Press the “Scroll” button to change the
option.
After choose the new DIT option, the user
need pressing the “Enter” button to confirm
the setting.
9
Automatic Scroll Time Interval
Default: 0 S
Option: 0 ~ 30S
9-1
Press the “Enter” button, the red part flash.
Press the “Scroll” button to change the
option.
After choose the new “Scrl” option, the user
need pressing the “Enter” button to confirm
the setting.
10
Backlit lasting time set-up
Default: 60 min
Option: 0（OFF）/ 5/ 10/ 20/ 30/ 60
Long press “Enter” button to enter set-up
mode.