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5.4 Data Collection
In addition to the Real Time Data and Results Data that appears on the main screen, users also have the ability to create two data files that collect data during a session. These are Results logging and Data logging.
Results Logging
The Results Logging file creates one line entry with the results for each step that completes during a session. A new Results Logging file is created every time a new session begins. The new session in triggered by executing the Reset step in the routine. When this new session begins a new file will be created using the same file location path as specified in the Data Logging menu item. This Results file will have the format: CHX_YYMMddHHmn.txt
| X=Channel No | YY=Year | MM=Month |
| dd=Day | HH=Hour | mn=Minute |
Enable or disable the creation of the Results Logging file by clicking the menu item: System/Results Logging
When each step completes a one line update is made to the Results Logging file. This update is similar to what you would see on one line in the Saved Data section. However by using this file you can have a permanent record of the results and also collect more results than can fit in the Saved Data section. For example when doing battery life cycle testing for hundreds of cycles the results file will collect and store data from each cycle. Note:Unlike the Results Data on the main screen, the Battery Console application must be running in order to make updates to the Results Logging file.
The Results Logging file is a plain text file that can be opened and viewed with any text editor program. If you open this text file with a text editor, like Wordpad, during a session, it will lock the file and prevent new updates. In this case copy the file and only open the new copy. You may be able to view an open file using a text editor in read only mode. Once a new session begins the last text file is closed and available for viewing.
Stop steps are not recorded in the Results Logging file.
Data Logging
The Data Logging file records the following real time data at specified intervals:
| Header | Log# | Step# |
| Count1 | Function | StepTime(Min) |
| TotalTime(Min) | Voltage(V) | Current(mA) |
| Power(W) | Capacity(AH) | Energy(WH) |
| %Cap(AH) | IntRes(mΩ) | Temp(C) |
Set the Data Logging interval and file path location by clicking the menu item: System/Results Logging
Any interval greater than zero will enable the data logging. Set the interval to zero if data logging is not required.
This Data Logging file will have the format: CHX_YYMMddHHmn.csv
| X=Channel No | YY=Year | MM=Month |
| dd=Day | HH=Hour | mn=Minute |
The Battery Console application must be running in order to make updates to the Data Logging file. The Data Logging file uses a Comma Separated Variable (CSV) format. This allows for easy importing to popular spreadsheet programs such as Excel or Open Office.
Download example Data Log file: CH16_1801142010.csv
For reference the data logging interval is shown in the bottom status bar on the main window.