Eastron DCM232 User Manual
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Eastron DCM232 User Manual

Double channels dc energy meter
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DCM232 DC energy meter User Manual
DCM232
Double Channels DC Energy Meter
 Dual channels
 Bi-directional measurement IMP & EXP
 9-40VDC power supply
 Two pulse outputs
 RS485 Modbus RTU
 Din rail 72mm
 Class 1
Zhejiang Eastron Electronic Co.,Ltd.
USER MANUAL
2024 V1.2
Web: www.eastrongroup.com

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Summary of Contents for Eastron DCM232

  • Page 1 DCM232 DC energy meter User Manual DCM232 Double Channels DC Energy Meter  Dual channels  Bi-directional measurement IMP & EXP  9-40VDC power supply  Two pulse outputs  RS485 Modbus RTU  Din rail 72mm  Class 1 USER MANUAL 2024 V1.2...

  • Page 2: Risk Reduction

    DCM232 DC energy meter User Manual Risk Reduction Information for Your Own Safety This manual does not contain all of the safety measures operating the equipment (module, device) for different conditions and requirements. However, it does contain information which you must know for your own safety and to avoid damages.
  • Page 3 DCM232 DC energy meter User Manual This device must have a suitable sized Circuit Breaker feeding the Multi Function Energy Meter so it does not  exceed the maximum rated current. The supply wiring of this device shall be suitable sized cable to match the installed circuit breaker.

  • Page 4: Operation

    DCM232 DC energy meter User Manual 1. Introduction Eastron DCM232 series DC energy meters are designed for measuring and monitoring in DC systems,especially for the dual channel DC EV Chargers. The din rail DC energy meters can measure of important DC parameters: voltage, current, power and energy etc.

  • Page 5: Buttons Function

    DCM232 DC energy meter User Manual Software Version The interface performs a self-test and indicates the result if the test passes. 2.2 Buttons function There are four touch keypads on the front panel. > move to the left > Exit the Set-up mode >...

  • Page 6: Scroll Display

    DCM232 DC energy meter User Manual 2.3 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.
  • Page 7 DCM232 DC energy meter User Manual The total kWh of CH02 The import kWh of CH01 The export kWh of CH02 3. Set-up Mode To get into Set-up Mode, the user need press the “Enter” button for 3 second. Page...
  • Page 8 DCM232 DC energy meter User Manual Set Communication Address Mode Mode 1: Single communication address mode. Mode 2: Dual communication addresses mode. (Refer to 4.3.1 for details) Modbus address setting Range: 001~247 Default :001 Baud rate of communication Range: 2400~38400bps...
  • Page 9 DCM232 DC energy meter User Manual Press button to choose CH01 or CH02 first. There are 3 options for pulse output: Total kWh Import kWh Export kWh Press button to choose pulse output type of the channel be chosen. Pulse constant.
  • Page 10 DCM232 DC energy meter User Manual Press button to choose CH01 or CH02 first. Press button to change the pulse time (pulse width) of the channel be chosen. Options: 60, 100, 200 mS Default: 100mS Primary current setting Press button to choose CH01 or CH02 first.
  • Page 11 DCM232 DC energy meter User Manual Backlight: to set the backlight duration time after button operation. Options: on, off, 5, 10, 15, 30, 60, 120 minutes. Default: 60 minutes Password: allows user to set a new password. Shunt Connection setting...

  • Page 12: Electrical Specifications

    DCM232 DC energy meter User Manual Charger line resistance setting 15-1 Press button to choose CH01 or CH02 first. 15-2 Press button to set line resistance of the channel selected before. Range 0-999.9 mΩ Default:0 Keep pressing button to exit the Set-up Mode.

  • Page 13: Environmental Specifications

    Transmission distance: 1000m *Note: DCM232 has 2 modes of communication address. The modes can be set by pressing the buttons on the meter or via RS485 Modbus. Mode 1: Single communication address mode. Under this mode, the register address of different channels (CH01- CH02) will be showed in segments.
  • Page 14 DCM232 DC energy meter User Manual 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.

  • Page 15: Wiring Diagram

    DCM232 DC energy meter User Manual 5. Wiring diagram Terminal Connection 1. Pulse output 1+ 2. Pulse output com- 3. Pulse output 2+ 4. RS485 B- 5. RS485 A+ power supply: 9~40V DC Shunt Connection Positive Type: Negative Type: First Circuit...
  • Page 16 DCM232 DC energy meter User Manual 6. Dimensions 7. Shunt ESFL-2A Series Primary Input Rated Voltage Output Accuracy Dimension(mm) 10-50 A 75/60 mV 0.5% 25x120x22 75-100 A 75/60 mV 0.5% 23x109x11 150-200 A 75/60 mV 0.5% 22x118x22 300 A 75/60 mV 0.5%...

  • Page 17: Modbus Register Map

    DCM232 DC energy meter User Manual 8. Modbus register Map 8.1 Input register Modbus Input Register Parameter Protocol Start Address Hex Address (Register) Length Data Description Units (bytes) Format Byte Byte 30001 line to neutral volts. Float 30007 current. Float 30013 power.
  • Page 18 DCM232 DC energy meter User Manual Read: to get the status of the KPPA Parameter 0 = not authorized；1 = authorized Programming Write the correct password to get KPPA, enable to 40015 Authorization program key parameters. (KPPA) Length : 4 byte...
  • Page 19 DCM232 DC energy meter User Manual Range 0~121，0 means backlit always on ，121 means backlit always off Length : 4byte Data Format : Float Write MODBUS Protocol input parameter for pulse output 1： CH01 Pulse Energy 1: import active energy...
  • Page 20 DCM232 DC energy meter User Manual Length : 4 byte Data Format : Float CT1 Range 1-1999A，Default 1， Length : 4 byte 403259 CT1 for CH02 Data Format : Float (KPPA is asked) 0000：Off 0001：ON(two-lines) CH02 charger line 404537 Length : 2byte...
  • Page 21 DCM232 DC energy meter User Manual CONTACT US If you have any question, please feel free to contact our sales team. Zhejiang Eastron Electronic Co., Ltd. No. 52, Dongjin Road, Nanhu, Jiaxing, Zhejiang, China Tel: +86-573-83698881 Fax: +86-573-83698883 Email: sales@eastrongroup.com...

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