Gauge Visualizations

Gauge types visually represent the position of a value within a predefined minimum–maximum range and its status according to defined thresholds. This makes it possible to understand whether the measured parameter is in the normal, warning, or critical region without relying solely on the numerical value.

Range Management

The operating range of the gauge can be defined by specifying minimum and maximum values.

Threshold Zones

Normal, warning, and critical regions can be distinguished using a color-based threshold approach.

Current Value

The current measurement value is highlighted as the primary information at the center of the gauge.

Operational Response

Rapid recognition of the current status helps operators respond more quickly when action is required.

Gauge threshold zones and current value Semicircular gauge diagram showing normal, warning, and critical regions between minimum and maximum values. 72 MW MIN MAX NORMAL WARNING CRITICAL

The real strength of a Gauge lies not only in displaying the value, but in presenting the value together with its position within defined operating limits. For example, the same numerical value for a power, pressure, temperature, level, or similar process parameter may have different meanings under different operating ranges. Visually separating the thresholds directly conveys this context to the user.

Numeric Visualization Types

Numeric visualizations bring the precise numerical value of a parameter directly to the foreground. They allow information to be perceived in the simplest and fastest way without requiring interpretation of a chart.

Large and Readable Value

The critical measurement value is visually emphasized, allowing the user to read the primary value quickly.

Unit Information

Measurement units such as MW, MWh, kV, bar, °C, %, and m³/s can be displayed together with the value.

Status Highlighting

Normal, alarm, or critical conditions can be supported with color and visual status information.

Live Updates

Using the Live Data approach, values can be updated automatically at defined time intervals.

Numeric display example Numeric display showing a live power value, its unit, and operational status. ACTIVE POWER 72.4 MW LIVE DATA • NORMAL STATUS

The purpose of Numeric displays is to make the critical value directly visible rather than perform detailed trend analysis. Therefore, particularly on operator screens and dashboard cards, they can be used as a complementary display together with other charts.

Color and Status Logic

In LIVE DASH, Gauge and Numeric visualizations can be supported by color-based status indication. According to the defined thresholds, normal values can be represented with a safe status color, values approaching a limit with a warning color, and critical conditions with a visually prominent status indicator.

NORMAL → WARNING → CRITICAL
Intuitive status perception: The purpose of the color logic is not merely to provide an aesthetic distinction. It enables the user to intuitively perceive the severity of the current status before reading the numerical value in detail. However, color should always be evaluated together with the numerical value and defined thresholds.
Normal, warning, and critical status logic Diagram showing a measurement value divided into three operational status regions according to defined thresholds. NORMAL WARNING CRITICAL Defined thresholds → visual classification of status

Live Data Integration

Gauge and Numeric displays can work together with the Live Data feature of LIVE DASH to automatically update values at defined time intervals. This allows users to monitor the current measurement status without manually refreshing the screen.

  1. Data acquisition: The relevant measurement value is obtained from the SCADA or operational data source.
  2. Value evaluation: The current value is evaluated against the defined range and thresholds.
  3. Visual update: The Gauge position or Numeric value is updated automatically.
  4. Status perception: The required status information is conveyed to the user through visual and/or color-based presentation.
Live Data flow Flow from acquiring SCADA data to automatically updating a Gauge or Numeric display. SCADA / Data source Live Data update Threshold / Status evaluation Gauge / Numeric Automatic update → current operational view

This approach is particularly important in systems requiring critical threshold monitoring and immediate intervention. Automatically transferring current data to the screen reduces delays caused by manual refreshing and helps ensure that operational decisions are based on up-to-date information.

Usage Approach in SCADA and Energy Applications

Gauge and Numeric displays can be considered complementary visualizations that highlight critical measurement values within a dashboard rather than tools intended to perform a complete analysis on their own. They provide an appropriate visual layer for quickly displaying the current status of operational parameters such as active power, reactive power, bus voltage, flow rate, pressure, temperature, reservoir level, and similar measurements.

Visualization Key Question Primary Information
Gauge Where is the value within the operating range? Range, threshold, and current position
Numeric What exactly is the current value? Precise numerical value and unit
Gauge + Numeric What is the value and what is the status? Numerical value + intuitive status

Important Note

The Gauge and Numeric usage examples provided on this page are intended to explain the analysis and monitoring purposes for which these visualizations can be used. The examples provided here should not be interpreted as implying that all of these capabilities are directly supported in the current version of LIVE DASH.

Supported features depend on the LIVE DASH version in use, the data source, the report configuration, and the current capabilities of the relevant component. Therefore, the examples may include both existing features and usage scenarios that could be developed in the future.

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