PZEM Reader

This repository contains a Python-based script to interface with PZEM energy monitoring devices using Modbus TCP. The script automates data recording, handles connection management, and logs data into CSV files.

Features

• Connects to PZEM devices via Modbus TCP.
• Automatically generates and manages CSV files for daily logs.
• Periodically records voltage, current, and temperature.
• Handles errors such as device disconnection or communication failure.

Requirements

• Python 3.6+
• Required Python packages:
  • pymodbus
  • datetime
  • threading
  • os
  • sys
• A PZEM device accessible via Modbus TCP.

Installation

1. Clone the repository:

   git clone https://github.com/icecube/solar_panel_project.git

2. Navigate to the repository:

   cd solar_panel_project

3. Install dependencies (different in case there of no internet):

   pip install pymodbus

Configuration

• Update the ser = ModbusTcpClient section in the script with your device's IP address and port.
• Modify the CONST_DEVICE_ID if you are using a device ID other than 0.

Usage

1. Run the script:

   python PZEMReader(Device0).py

2. The script will automatically:

   • Attempt to connect to the specified PZEM device.
   • Generate a new CSV file for daily logs in the Documents/Icecube folder.
   • Record voltage, current, and temperature periodically.

3. To stop the script, press CTRL+C. The current session will be saved.

File Management

• Files are stored in the Documents/Icecube directory under a folder named by the current year and month (e.g., 24_12 for December 2024).
• Filenames are structured as follows:

  <POLE><YY>_<DAY_OF_YEAR>_device_<DEVICE_ID>.csv
  

  Example: spo24_345_device_0.csv

Error Handling

• The script handles errors such as:
  • File not found
  • Permission issues
  • Sensor disconnection or communication failure
• Logs NO RESPONSE for failed data reads.

Contact

For further information or questions, please contact:

• Manish Khanal ([email protected])
• Hayden Soelberg ([email protected])