Chart Settings

General chart settings for the EOS Chart Panel can be configured through the Settings tab. In addition, individual chart display settings can be configured separately for each SCADA data series displayed on the chart.

This structure makes it possible to configure different data series displayed on the same chart so that they can be easily distinguished from one another. Data-specific chart settings improve readability, particularly when a large number of SCADA data series are monitored on the same chart.

Data-Specific Chart Settings: The EOS Chart Panel allows the color, line style, and line width to be specified separately for each SCADA data series.

Chart Display Settings for SCADA Data

The appearance of each SCADA data series on the chart can be configured independently. This allows different process variables displayed on the same chart to be visually distinguished from one another.

Setting Description
Color Determines the line color of the relevant SCADA data series on the chart.
Line Style Determines how the data series line is displayed on the chart.
Line Width Determines the thickness of the relevant data series line on the chart.
Example: When different process values are displayed on the same chart, assigning different colors and line properties to each data series can make the chart easier to read.

Data Reduction

SCADA systems may contain a very large number of data records, particularly over long time periods. Attempting to plot all of these data points on the chart simultaneously can significantly increase chart generation time and result in excessive use of system resources.

Performance Warning: Plotting a very large number of SCADA data points at once may result in long processing times and, under excessive load, may prevent the system from responding. Therefore, for high-volume data charts, it is recommended to use shorter time ranges whenever possible or enable the data reduction feature.

Particularly when plotting historical data, the shortest practical time ranges should be preferred. Creating charts using preferably 1-hour time ranges helps preserve the required level of detail. When longer periods need to be analyzed together, data reduction options can be used.

Data reduction reduces the number of data points used for chart rendering according to a specified time interval. Instead of processing all raw data points, only data points corresponding to the selected reduction interval are included in the charting process.

Data Reduction Options

The data reduction interval in the EOS Chart Panel can be determined by selecting one of the following options:

Option Description
None No data reduction is applied.
1 per 500 Milliseconds One data point is used for each 500-millisecond interval.
1 per Second One data point is used for each 1-second interval.
1 per 2 Seconds One data point is used for each 2-second interval.
1 per 5 Seconds One data point is used for each 5-second interval.
1 per 10 Seconds One data point is used for each 10-second interval.
1 per 20 Seconds One data point is used for each 20-second interval.
1 per 30 Seconds One data point is used for each 30-second interval.
1 per Minute One data point is used for each 1-minute interval.
1 per 15 Minutes One data point is used for each 15-minute interval.
1 per 30 Minutes One data point is used for each 30-minute interval.
1 per Hour One data point is used for each 1-hour interval.
1 per Day One data point is used for each 1-day interval.

Determining the Data Reduction Interval

When selecting the reduction interval, the amount of data to be plotted, the selected time range, and the required level of chart detail should be considered together. For detailed monitoring over a short time range, lower reduction intervals may be preferred; for analyzing long-term trends, higher reduction intervals may be appropriate.

Requirement Approach
Short-term and detailed analysis Use the shortest practical time range and a low reduction interval.
Long-term trend analysis Use a higher reduction interval.
Very high data volume First reduce the time range or use an appropriate data reduction interval.
Approximately 1-hour operational analysis Prefer plotting using a 1-hour time range.

Recommended Approach for Chart Performance

The objective when generating charts is to avoid processing an unnecessary number of data points while preserving the operational information required. Therefore, before starting the charting process, it is recommended to keep the time range as short as practical and apply data reduction when necessary.

Recommended approach:
First select an appropriate time range → Enable data reduction if necessary → Check the number of chart data points → Create the chart.

Particularly for long-term historical data, selecting a reduction interval appropriate to the purpose of the analysis instead of plotting all raw records simultaneously helps reduce chart generation time and use system resources more efficiently.

Chart Settings Usage Summary

Feature Primary Function
General chart settings Managing the general appearance and operating settings of the Chart Panel
Data color Setting the line color separately for each SCADA data series
Line style Defining the line display style for each SCADA data series
Line width Defining the line width for each SCADA data series
Data reduction Reducing the number of data points before chart rendering
Time range Limiting the period of data to be plotted
Result: Using data-specific display settings together with the data reduction feature in the EOS Chart Panel helps improve both chart readability and charting performance when working with high-volume data.
← Back to Previous Content