Su.S.E.E. - Supervisor System for Energy Efficiency

------------- Energy Management System -----------------

SUSEE has been developed to support Energy Managers to implement ISO 50001 Energy Management Systems, and Energy Audit. The Python script is able to read data from any Modbus device at fixed sampling time, transform and store data in a database.

The main characteristics are:

• OS: Linux Debian >= 9.0
• Python >= 3.5
• Compatible with any Modbus RTU/TCP devices
• Free sampling time > 1s
• Data quality control
• Time sample delay control

Install

Linux Debian $ pip install susee

Usage

Default Device

• The testing script 'see_etl.py' performs energy data acquisition from the SIEMENS SENTRON PAC3200 Power Meter.

List of parameters

• The standard list of electrical parameters acquired at each sampling time is:

    n.    paramID    Description     unit
    __________________________________________
    # 1  - 104      Voltage  L1L2   [V]
    # 2  - 107      Current L1      [A]
    # 8  - 132      Total Apparent Power [VA]
    # 9 -  133      Total Active Power [W]
    # 10 - 134      Total Reactive Power  [VAr]
    # 11 - 135      PF Power Factor
    # 12 - 222      Imported Active Energy [Wh]
    # 13 - 226      Imported Reactive Energy [VArh]
  

Database Tables

• The acquired data are read from the device's Modbus TCP port and stored in a MariaDB database.

  • Default jobID: 000

  • Default Database name: seedb000

  • Tables: see000Raw, see000Last, see000Params

    n. Table Description

    1 see000Raw Read data 2 see000Last Last sampled data 3 see000Params Tables of parameters

  Tables: see000Raw, see000Last

  Columns: -idNum int(12) AI PK -idDevice varchar(20) -Date datetime(6) -idParam varchar(20) -Value float(20,4) -Delay float -Code int(11)

  The 'Code' fields is a data's quality parameter Code = { 'err_connection' : 1, 'driver error' : 2,
  'server_off' : 4,
  'err_register' : 8, 'value_NaN' : 16, 'lenreg_zero' : 32, 'driver not found' : 64, }

  Table: see000Params

  ---

  Columns: idNum int(12) AI PK idParam varchar(10) descrITA varchar(255) descrENG varchar(255) um varchar(10) Acronimo varchar(30)

  idParam descrITA descrENG um Acronimo

  104 Tensione UL1_L2 Voltage UL1_L2 V UL1_L2 107 Corrente L1 Current L1 A IL1 132 Potenza apparente totale Apparent Power - Total VA S_TOT 133 Potenza attiva totale Active Power - Total W P_TOT 134 Potenza reattiva totale Reactive Power - Total VAr Q_TOT 135 Fattore di potenza totale Power Factor - Total na PF_TOT 222 Energia Attiva importata Active Energy Imported Wh EnP_Imp_Tar1 226 Energia Reattiva importata Reactive Energy Imported VArh EnQ_Imp_Tar1

How to run the script

• Setup the above MariaDB database structure

• Put the following reserved info in a .env file

  • user_db = 'username'
  • pswd_db = 'password!'
  • port_db = '3306'
  • host_db = 'xxx.xxx.xxx.xxx'

• Connect a SIEMENS PAC3200 device in your local network

• Set the desired sampletime in etl_data.py (default smpletime: 10 s)

• Set the PAC3200 ip address in etl_data.py (default ip: 192.168.1.100)

• run: $ python see_etl.py -d eft_data.py

• check if raw data have been stored in tha see000Raw database table

  idNum idDevice Date idParam Value Delay Code

  398882 d00 2021-02-18 10:30:00.000000 104 395.1900 178.778 0 398883 d00 2021-02-18 10:30:00.000000 105 393.3600 178.778 0 398884 d00 2021-02-18 10:30:00.000000 106 397.6700 178.778 0

Contribute

Your contribution is welcome.

License

The MIT License (MIT)