SBAU487 August   2025

 

  1.   1
  2.   Description
  3.   Getting Started and Next Steps
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Block Diagram
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Power Requirements
    2. 2.2 Header Information
    3. 2.3 Jumper Information
    4. 2.4 Slide Switches and Push Buttons
    5. 2.5 Test Points
    6. 2.6 Cautions and Warnings
    7. 2.7 Analog Inputs
      1. 2.7.1 Voltage Inputs
        1. 2.7.1.1 Voltage Measurement Analog Front End
      2. 2.7.2 Current Sensor Inputs
        1. 2.7.2.1 Current Measurement Analog Front End
          1. 2.7.2.1.1 Rogowski Coil Inputs
      3. 2.7.3 Analog Gain Setting
  9. 3Software Installation
    1. 3.1 GUI Operation
    2. 3.2 Launch the Metrology Software
  10. 4Energy Metrology Software Overview
    1. 4.1 Using the ADS131M08MET-EVM
      1. 4.1.1 Measuring Voltage and Current
        1. 4.1.1.1 Calibration Procedure
          1. 4.1.1.1.1 Gain Calibration
          2. 4.1.1.1.2 Voltage and Current Gain Calibration
          3. 4.1.1.1.3 Active Power Gain Calibration
          4. 4.1.1.1.4 Offset Calibration
          5. 4.1.1.1.5 Phase Calibration
    2. 4.2 Test Accuracy Results
      1. 4.2.1 Current Transformer Results
      2. 4.2.2 Rogowski Coil Results
    3. 4.3 Developing an Application
  11. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 Bill of Materials (BOM)
    3. 5.3 PCB Layouts
  12. 6Design and Documentation Support
    1. 6.1 Design Files
      1. 6.1.1 PCB Layout Recommendations
    2. 6.2 Tools and Software
    3. 6.3 Documentation Support
    4. 6.4 Support Resources
    5. 6.5 Trademarks

3.1 GUI Operation

Before running the ADS131M08MET-EVM GUI, plug the USB to RS-232 cable into the PC and verify the COM port used. On a Microsoft Windows PC, open the Device Manager and scroll down to Ports (COM and LPT). Find the Prolific PL2303GS USB Serial COM Port and note the port used. The COM ports being used are enclosed in parentheses as shown in Figure 3-1.

ADS131M08MET PC COM Port Figure 3-1 PC COM Port

Open the folder on the PC that contains the metrology GUI. By default, the GUI is located in C:\ti\mspm0_sdk_(version)\tools\metrology_gui. Before running the calibrator.exe file, open and edit the calibration-config.xml file. Open the calibration-config.XML file with a text editor and search for <meter position="1">. The line following the meter position must use the same COM port that is associated with the PL2303GS COM port as shown in Figure 3-2. Be sure to save any changes before running the calibrator.exe file.

ADS131M08MET XML COM Port Figure 3-2 XML COM Port