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EKO MC-20 Instruction Manual

Modbus signal converter
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MC-20
INSTRUCTION MANUAL
Modbus Signal Converter

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Summary of Contents for EKO MC-20

  • Page 1 MC-20 INSTRUCTION MANUAL Modbus Signal Converter...

  • Page 2: Table Of Contents

    9 - 4 . S o f t w a r e S p e c i f i c a t i o n 9 - 5 . Acc es s o r i es L is t APPENDIX A-1. Optional Items Pg. 1 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...

  • Page 3: Contact Information

    For warranty terms and conditions, contact EKO or your distributor for further details. EKO guarantees that the product delivered to customer has been verified, checked and tested to ensure that the product meets the appropriate specifications. The product warranty is valid only if the product has been installed and used according to the directives provided in this instruction manual.

  • Page 4: Environment

    2. RoHS Directive 2002/95/EC EKO Instruments has completed a comprehensive evaluation of its product range to ensure compliance with RoHS Directive 2002/95/EC regarding maximum concentration values for substances. As a result all products are manufactured using raw materials that do not contain any of the restricted substances referred to in the...

  • Page 5: Ce Declaration

    EMC-directive: 89/336/EEC 2014/108/EC Date: Mar. 6, 2015 Position of Authorized Signatory: Deputy General Manager of Quality Assurance Dept. Name of Authorized Signatory: Shuji Yoshida Signature of Authorized Signatory: Pg. 4 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...

  • Page 6: Safety Information

    3. Safety Information EKO Products are designed and manufactured with consideration for safety; however, please make sure to read and understand this instruction manual thoroughly to be able to operate the instrument safely in the correct manner. WARNING Attention to user; pay attention to the instructions given on the CAUTION instruction manual with this sign.

  • Page 7: Introduction

    4. Introduction The Modbus Signal Converter MC-20 is a digital signal converter which converts the analogue signals from pyranometers, Pt-100 or 10kΩ NTC temperature sensor into a digital signal, and transmits and receives data with serial communication method. Since it is compatible with RS-485 communication, it is possibe to connect with PV monitoring devices which have this communication function.

  • Page 8: Package Content

    4-2. Package Contents Check the package contents first; if any missing item or damage is noticed, please contact EKO immediately. Table 4-1 Package Contents Standard Items Qty. Remarks Modbus Signal Converter Main Unit 1 unit L-Shape Tab Terminal (male) 6pcs...

  • Page 9: Getting Started

    Power Supply Input Terminal ( - ) Power Supply Input Terminal ( + ) Communication Control Terminal ( + ) Grounding Terminal Communication Control Terminal ( - ) Pg. 8 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...

  • Page 10: Setup

    The maximum torque for tightening the sems screws is 0.4N・m. NOTE: MC-20 is paired with the pyranometer which is purchased together; when connecting with the pyranometer, make sure to connect with the right pyranometer. Use the pyranometer with same serial number stated on the MC-20 inspection report.
  • Page 11 Figure 5-2. How to Remove Communication Cables Sensor Fuse RS-485 Communication 12V-24V Device (Data Logger, etc.) Power Supply Figure 5-3. Wiring Example Figure 5-4. Measurement Mode and Measuring Device Connection Terminals Pg. 10 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...

  • Page 12: Software

    6. Software 6-1. Software Overview EKO Sense Configurator software is used for changing Signal Converter settings and easy data checking. 6-2. Installation Follow below procedure to install the Signal Converter Configurator Software: Download the latest version of Signal Converter Configurator Software from the EKO Website.
  • Page 13 Desktop. As default setting, the shortcuts are added to the Start Menu and Desktop. Remove the checks from the checkboxes as necessary, then click [Next] button. Figure 6-3. Set Program Shortcuts Window Pg. 12 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 14 If you don’t want to start the software immediately, place a check on checkbox before clicking the [Finish] button. 図 6-5. Setup Complete Window Pg. 13 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...

  • Page 15: Electrical Connection

    RS-485 communication port, use RS-485/USB converter. Configuration can be done regardless the sensor is connected or not. NOTE: Configuration Cable (RS-485/USB converter and communication cable) is an optional item. Figure 6-6. Wiring for Converter Setting Pg. 14 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...

  • Page 16: Software Operation

    6-4. Software Operation 1. Signal Converter Setting Startup the software (EKO Sense Configurator). Initial setting of the language is English at the time of software startup. If necessary, change the language setting from the tool bar at the top of the window (Tools ...
  • Page 17 Port number that is connected No Settings Baud Rate Communication Speed [bps] 9600 Parity Parity Bit None Data Refresh Time Communication Interval with MC-20 [msec.] 1000 Node Index Node Number Pg. 16 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 18 Within 5 seconds after the Signal Converter power turned ON, click [Connect] button. communication starts and when connection is established, “Reading Success” indication appears. Connect Button Figure 6-10. Configuration Window (Connection Complete) Pg. 17 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 19 Click [Connect] button again to continue change the settings to change the status indication to “Communication OFF” Address which can Read Button be changed without Password Figure 6-11. Configuration Window (Entering Password) Pg. 18 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 20 Click [Connect] button again to continue change the settings to change the status indication to “Communication OFF” Connect Button Configurable Condition (Able to enter value, select items) Figure 6-12. Configuration Window (After Password verification) Pg. 19 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 21 If “Timeout” or “Error” is indicated, there are some misconfiguration in the communication control setting, so go back to step 6) in 6-4, 1., and change the configuration according to the instruction. Connect Button Remove Check Figure 6-13. Confirming Communication Setting Pg. 20 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 22 Configurable in range from 1 to 100 4800, 9600, 19200, 38400, 56000, 57600, 43, 44 Baud Rate 115200 bps Parity Bit None/Odd/Even 46 - 63 Not Available (Reserved) Do not write Pg. 21 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 23 To create a report of the setting contents in PDF file, click “Report” button on top of the software window. After clicking this button, assign the location for saving this file and file name. Report Button Figure 6-15. Creating PDF Report with Configured Contents Pg. 22 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 24  NL-k2:  NL-k3:  NL-k4:  Node:  Communication Speed: 9600  Parity: None Load Default Button Connect with Configuration Mode Figure 6-16. Load Default Setting Pg. 23 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 25 Items which can be displayed are as follows: Address 19: Input Voltage Address 21: Solar Irradiance Address 23: Temperature Connect Button Figure 6-17. Measurement Data Real Time Display Pg. 24 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 26 Measured Values Solar Irradiance (W/m  Temperature (℃) Log file is created in CSV format with semi-column separation Connect Button Log Data Button Figure 6-18. Easy Logging Function Pg. 25 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...

  • Page 27: Connect To Peripheral Device

    7-1. Electrical Connection 1. How To Connect the Signal Converter This Signal Converter MC-20 can be connected with devices that communicate with Modbus RTU protocol using RS-485. Maximum of 100 units can be connected, and individual address can be assigned.

  • Page 28: Troubleshooting

    No change to made to converter Settings will only be active after writing the new settings. settings Log data function doesn’t display Check the connection any measured data Pg. 27 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...

  • Page 29: Specification

    *2 When the Signal Converter is used in ambient temperature over the Accuracy Assured Operating Temperature Range, the measurement error may increase. *3 Recommended power supply voltage is DC 24V. Pg. 28 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 30 9-2. Dimensions Unit in mm Figure 9-1. Dimensions Pg. 29 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...

  • Page 31: Communication Specification

    A silent 8bit 8bit n * 8bit 16bit A silent interval interval (≧3.5 char) (≧3.5 char) Modbus Data(RTU) Table9-4. Function Code Code: decimal Function Read Holding Registers Pg. 30 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 32 Not Available (Reserved) － － ※1: Integer without 16 bits symbol. ※2: Single precision floating point number ※3: Order of the FLOAT resister is LOW  HIGH Pg. 31 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 33 Parameters for Temperature Correction Factor Initial settings are as follows; these settings are the same as when the correction function is not used: a: 1, b:0, c: 0, d: 0 Pg. 32 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 34 Data Length 21 (0x15) 21 (0x15) 22 (0x16) 22 (0x16) Register High Data Low Data High Data Low Data Readout 0x01 0x03 0x04 0x?? 0x?? 0x?? 0x?? Pg. 33 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 35 No. 23 data to make one data for before conversion. Next, calculate the data before conversion according to the IEEE754 standard. Conversion Result: 25.256℃ Address No Output Data Data Before Conversion 41ca0c49 Conversion Result 25.256 Pg. 34 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 36 Box for 2 units of signal converter (Includes: 4pcs M4 screws, 4pcs Mounting Signal Converter Box 2 Feet, 4pcs Blind Bar) Cable for Converter Setup RS-485/USB converter (1m), communication cable (0.5m), DC Pg. 35 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...

  • Page 37: Appendix

    Connect the other end to terminals +, -, and G terminals on RS-485/USB Converter (See Figure A-2). Then connect the USB cable of the RS-485/USB Converter to PC. Figure A-1. Connection between Signal converter and PC Figure A-2. RS-485/USB Converter Terminal Positions Pg. 36 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 38 Measurement instrument and grounding line of the power supply should be connected to one of the screws fixed on the base plate. Moreover, the Signal converter should be grounded when it is used. Pg. 37 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 39 Cable Gland Material Aluminum Die-Casting Aluminum Die-Casting Environmental Protection IP65 IP65 Dimensions 90 x 90 x 60 (mm) 100 x 140 x 70 (mm) Weight 465g 705g Pg. 38 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 40 2) Dimension Drawings Figure A-5. Converter Box 1 Figure A-6. Converter Box2 Pg. 39 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 41 Left & Right Hole Pitch Converter Box1 109mm 62mm Converter Box2 159mm 72mm ※Mounting feet positions when the cable glands on the converter box facing the ground. Pg. 40 EKO INSTRUMENTS CO., LTD Modbus Signal Converter MC-20 Instruction Manual V5...
  • Page 42 EKO Asia, Oceania 1-21-8 Hatagaya, Shibuya-ku, Tokyo 151-0072 Japan P. +81.3.3469.6711 F. +81.3.3469.6719 info@eko.co.jp www.eko.co.jp EKO North America 95 South Market Street, Suite 300, San Jose, CA 95113, USA P. +1-408-977-7751 F. +1-408-977-7741 info@eko-usa.com www.eko-usa.com EKO Europe, Middle East, Africa,...

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