Analog Log

Analog Log logo

Analog Log stores analog values and displays data across different time intervals.

About

Analog Log enables logging of analog (e.g. temperature, wind, pressure, voltage, current) and boolean values (e.g. switch status). Analog Log stores measured values into database and displays the data on the chart.


Help

Analog log

Picture 1: Analog log settings

Limit Database Writes limits writing to database. Within the specified interval (Write Interval) only one value is written to database. Write Type defines if this will be Average, Minimum or Maximum value of all values, received within the Write Interval.

If boolean value is selected, true/false is converted to 0/1.

Maximum limit for database size can be set (Delete Old Data) in days (Days to Delete Old Data).

Data can be scaled (Scaling) before it is written to database.

Entries are displayed under Data tab and it can be backed up, restored, exported and filtered using buttons in toolbar.

User Interface

Data Logger control enables viewing the data on theme panels.

Analog log UI

Picture 2: Analog log UI

  • Multiple Analog Log objects can be displayed on the same UI control.
  • Use Step Plot option in UI control settings to display the boolean data.
  • Use buttons in top right corner to export (Excel or Database file), delete or refresh data.

Examples

Example 1: Logging temperature

  1. Select Input value for temperature.
  2. Set Limit Database Writes to limit the amount of data in the database if the temperature sensor is sending data frequently.
  3. Set the write interval (e.g. 300 seconds = 5 minutes).
  4. Make the UI control.

Example 2: Logging wind

  1. Select Input value for wind.
  2. Set Limit Database Writes to limit the amount of data in the database. Wind sensors are usually sending data frequently in windy conditions.
  3. Set the write interval (e.g. 300 seconds = 5 minutes).
  4. Select Write Type Max if you want to log the wind gusts.
  5. Make the UI control.

Example 3: Logging switch output

  1. Select Input value for switch.
  2. Set Limit Database Writes to false.
  3. Optionally scale the data, if you want to display it with another Analog Log data (e.g. displaying the switch output with temperature on the same chart).
  4. Make the UI control.
  5. Use Step Plot option in UI control settings to display the boolean data.
Download Examples