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Eastron SDM630-Modbus MID V2 User Manual
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Eastron SDM630-Modbus MID V2 User Manual

Din rail smart meter for single and three phase electrical systems
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EASTRON SDM630-Modbus MID V2 User Manual
SDM630-Modbus MID V2
DIN Rail Smart Meter for Single and Three Phase Electrical Systems
● Measures kWh Kvarh, KW, Kvar, KVA, P,
F, 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
2020 V1.1

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Summary of Contents for Eastron SDM630-Modbus MID V2

  • Page 1 EASTRON SDM630-Modbus MID V2 User Manual SDM630-Modbus MID V2 DIN Rail Smart Meter for Single and Three Phase Electrical Systems ● Measures kWh Kvarh, KW, Kvar, KVA, P, F, PF, Hz, dmd, V, A, etc. ● Bi-directional measurement IMP & EXP ●...
  • Page 2 Introduction The SDM630-Modbus MID V2 measures and displays the characteristics of single phase two wires (1p2w), three phase three wires (3p3w,) and three phase four wires(3p4w) supplies, including voltage, frequency, current, power, active and reactive energy, imported or exported. Energy is measured in terms of kWh, kVArh.
  • Page 3 Select the Power display screens In Set-up Mode, this is the “Down” button Select the Energy display screens In Set-up mode, this is the “Enter” or “Right” button B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 4 Phase to neutral voltages(3p4w) Phase to neutral voltages(3p3w) Current on each phase Phase to neutral voltage THD%(3p4w) Phase to neutral voltage THD%(3p3w) B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 5 Each successive pressing of the button selects a new range: Frequency and Power Factor (total) Power Factor of each phase Maximum Power Demand Maximum Current Demand B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 6 Instantaneous Volt-amps in KVA Total kW, kVArh, kVA Energy Measurements Each successive pressing of the button selects a new range: Imported active energy in kWh B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 7 Exported active energy in kWh Imported reactive energy in kVArh Exported reactive energy in kVArh Total active energy in kWh Total reactive energy in kVArh B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 8 6) On completion of all set-up, press repeatedly until the measurement screen is restored. B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 9 The next digit will flash. Repeat the procedure for the remaining three digits B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 10 The screen will show the currently selected integration time. Press to enter the selection routine. The current time interval will flash buttons to select the time required. B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 11 Use this section to set the type of power supply being monitored. From the Set-up menu, use buttons to select the System option. The screen will show the currently selected power supply. B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 12 Use this section to set up the pulse output for: Total kWh/ Total kVArh Import kWh/Export kWh Import KVArh/Export KVArh From the Set-up menu, use buttons to select the Pulse output option. B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 13 Use this to set the energy represented by each pulse. Rate can be set to 1 pulse per dFt/0.01/0.1/1/10/100kWh/kVArh. (It shows 1 impulse = 10kWh/kVArh) From the Set-up menu, use buttons to select the Pulse Rate option. B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 14 (It shows pulse width of 200ms) From the Set-up menu, use buttons to select the Pulse width option. Press to enter the selection routine. The current setting will flash. B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 15 Address ID Press button to enter the selection routine. The current setting will be flashing. buttons to choose Modbus Address(001 to 247) B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 16 Baud rate 2.4k. 4.8k, 9.6k, 19.2k, 38.4k On completion of the entry procedure, press to confirm the setting and press to return to the main set up menu. B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 17 Stop bits From the Set-up menu, use buttons to select the Stop Bit option. B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 18 Press to enter the selection routine. The MD will flash. Press to confirm the setting and press to return to the main set up menu. B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 19 1% of unity (0.01) ● Active power (W) ±1% of range maximum ● Reactive power (VAr) ±1% of range maximum ● Apparent power (VA) ±1% of range maximum B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 20 23°C ±1°C ● Input frequency 50 or 60Hz ±2% ● Input waveform Sinusoidal (distortion factor < 0·005) ● Magnetic field of external origin Terrestrial flux B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 21 ● Relative humidity 0 to 90%, non-condensing ● Altitude Up to 2000m ● Warm up time 1 minute ● Vibration 10Hz to 50Hz, IEC 60068-2-6, 2g Dimensions B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 22 Wiring diagram ● Three Phase Three Wires： ● Three Phase Four Wires： B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 23 ● Single Phase two Wires： B+G e-tech GmbH Fr.-Mehring St. 36 DE 01979 Lauchhammer Fax: 0049 3574 4675519 Web: www.eastron-germany.de...
  • Page 24 120 ohm (0.25 Watt min.) resistor. A total maximum length of 3900 feet (1200 meters) is allowed for the RS485 network. A maximum of 32 electrical nodes can be connected, including the controller. The address of each Eastron can be set to any value between 1 and 247. Broadcast mode (address 0) is supported.
  • Page 25 B+G e-tech GmbH ° DE 01979 Lauchhammer ° www.eastron-germany.de for compatibility with some SCADA systems, SDM630Modbus Smart meter will response to any single input or holding register read with an instrument type specific value. The SDM630Modbus can transfer a maximum of 40 values in a single transaction; therefore the maximum number of registers requestable is 80.
  • Page 26 B+G e-tech GmbH ° DE 01979 Lauchhammer ° www.eastron-germany.de √ √ 30025 Phase 1 reactive power. √ 30027 Phase 2 reactive power. √ 30029 Phase 3 reactive power. √ √ 30031 Phase 1 power factor (1). None √ 30033 Phase 2 power factor (1).
  • Page 27 B+G e-tech GmbH ° DE 01979 Lauchhammer ° www.eastron-germany.de √ 30225 Neutral current. Amps √ √ 30235 Phase 1 L/N volts THD √ 30237 Phase 2 L/N volts THD √ 30239 Phase 3 L/N volts THD √ √ √ 30241 Phase 1 Current THD √...
  • Page 28 B+G e-tech GmbH ° DE 01979 Lauchhammer ° www.eastron-germany.de √ √ √ 30379 L2 total kvarh (3) kvarh √ √ √ 30381 L3 total kvarh (3) kvarh Notes: 1. The power factor has its sign adjusted to indicate the direction of the current. Positive refers to forward current, negative refers to reverse current.
  • Page 29 B+G e-tech GmbH ° DE 01979 Lauchhammer ° www.eastron-germany.de Data Format : Float Write pulse1 on period in milliseconds: 60, 100 or 200, Pulse1 default 100. 40013 Width Length : 4 byte Data Format : Float Write any value to password lock protected registers.
  • Page 30 Modbus Protocol transactions involving floating point numbers. It is perfectly feasible to change Eastron Digital meter set-up using a general purpose Modbus Protocol master, but often easier to use the Eastron Digital meter display or Eastron Digital meter configurator software, especially for gaining password protected access.
  • Page 31 2 RS485 General Information Some of the information in this section relates to other Eastron Digital meter product families, and is included to assist where a mixed network is implemented.RS485 or EIA (Electronic Industries Association) RS485 is a balanced line, half-duplex transmission system allowing transmission distances of up to 1.2 km.
  • Page 32 B+G e-tech GmbH ° DE 01979 Lauchhammer ° www.eastron-germany.de abandon the “conversation”. 2.2 Connecting the Instruments If connecting an RS485 network to a PC use caution if contemplating the use of an RS232 to 485 converter together with a USB to RS485 adapter. Consider either an RS232 to RS485 converter, connected directly to a suitable RS232 jack on the PC, or use a USB to RS485 converter or, for desktop PCs a suitable plug in RS485 card.
  • Page 33 RS485 bus: 2.4 Troubleshooting · Start with a simple network, one master and one slave. With Eastron Digital meter products this is easily achieved as the network can be left intact whilst individual instruments are disconnected by removing the RS485 connection from the rear of the instrument.
  • Page 34 The MODBUS Protocol functions used by the Eastron Digital meters copy 16 bit register values between master and slaves. However, the data used by the Eastron Digital meter is in 32 bit IEEE 754 floating point format.
  • Page 35 B+G e-tech GmbH ° DE 01979 Lauchhammer ° www.eastron-germany.de the number of registers being requested. As registers are used in pairs, then this must be an even number. Error Check (Lo): The bottom (least significant) eight bits of a 16-bit number representing the error check value.
  • Page 36 3.2 Serial Transmission Modes There are two MODBUS Protocol serial transmission modes, ASCII and RTU. Eastron Digital meters do not support the ASCII mode. In RTU (Remote Terminal Unit) mode, each 8-bit byte is used in the full binary range and is not limited to ASCII characters as in ASCII Mode.
  • Page 37 Following the last transmitted byte, a silent interval of at least 3.5 character times marks the end of the message. A new message can begin after this interval. In the Eastron 1000 and 2000, a silent interval of 60msec minimum is required in order to guarantee successful reception of the next request.
  • Page 38 B+G e-tech GmbH ° DE 01979 Lauchhammer ° www.eastron-germany.de 3.5 Error Checking Methods Standard MODBUS Protocol serial networks use two error checking processes, the error check bytes mentioned above check message integrity whilst Parity checking (even or odd) can be applied to each byte in the message.
  • Page 39 Eastron Digital meters use two consecutive registers to represent a floating-point number, effectively expanding the range to +/- 1x10 The values produced by Eastron Digital meters can be used directly without any requirement to “scale” the values, for example, the units for the voltage parameters are volts, the units for...
  • Page 40 B+G e-tech GmbH ° DE 01979 Lauchhammer ° www.eastron-germany.de the power parameters are watts etc. What is a floating point Number? A floating-point number is a number with two parts, a mantissa and an exponent and is written in the form 1.234 x 10 .
  • Page 41 Adding these two numbers together and making reference to the sign bit produces the number +240.5. For each floating point value requested two MODBUS Protocol registers (four bytes) must be requested. The received order and significance of these four bytes for Eastron Digital meters is shown below: Data Hi Reg,...
  • Page 42 B+G e-tech GmbH ° DE 01979 Lauchhammer ° www.eastron-germany.de Starting Address Low Number of Points High Number of Points Low Error Check Low Error Check High Note: Data must be requested in register pairs i.e. the “Starting Address“ and the “Number of Points”...
  • Page 43 B+G e-tech GmbH ° DE 01979 Lauchhammer ° www.eastron-germany.de The following response returns the contents of Demand Time as 1, But see also “Exception Response” later. Field Name Example (Hex) Slave Address Function Byte Count Data, High Reg, High Byte...
  • Page 44 An error occurred when the instrument update to it’s Slave Device Failure attempted to store an configuration 3.12 Diagnostics MODBUS Protocol code 08 provides a number of diagnostic sub-functions. Only the “Return Query Data” sub-function (sub-function 0) is supported on Eastron Digital meters. Example...
  • Page 45 B+G e-tech GmbH ° DE 01979 Lauchhammer ° www.eastron-germany.de The following query will send a diagnostic “return query data” query with the data elements set to Hex(AA) and Hex(55) and will expect these to be returned in the response: Field Name...