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Important Product Information
Getting Started with Operations Hub
User Guide
- Overview
- Applications
- Entities
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- Events
- Email Templates
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- Widgets
  - About Widgets
  - Native (Classic)
  - Integration/System
    - Integration/System Overview
    - Inputs
    - Charts
      - Charts Overview
      - Line Chart
        In a line chart, data points are connected by a line to help visualize the changes in data trends over a period a time.
      - Pie Chart
      - Bullet Graph
        Use bullet graphs to compare the performance of any two values.
      - Histogram
        This plug-in provides a graphical representation of the distribution of numerical data.
        Configuring Histogram
        This topic describes how to configure a histogram chart at runtime.
      - Pareto Chart
        Plot a pareto chart for qualitative analysis of your data.
      - Sparkline
        Generate simple sparkline charts to visualize data trends.
      - Spider Chart
        Use spider charts to compare and analyze multiple data sets.
      - Timeline
        Use the timeline widget to visually monitor the progress of your events.
      - Trend Card
        A Trend Card widget allows you to plot real-time data from OPC UA servers and historical data from Historian servers.
      - Variwide Chart
        A variwide chart is a column chart where each column has a separate width to represent the third dimension.
    - HMI
    - Display
    - Maps
    - General
    - Batch
  - HMI Graphics
  - Widget Tutorials
    This topic provides video introductions to some of the most widely used integration widgets in Operations Hub. View these videos to get started with these commonly used widgets.
- Scripts
- General Reference
- APIs
- Troubleshooting
- Glossary of Terms

Histogram

This plug-in provides a graphical representation of the distribution of numerical data.

See Configuring Histogram.

Operations Hub New Layout	Refer to Visuals Tab for more information on the layout of widgets in Configuration Hub.
Operations Hub Classic Layout	Refer to About Widgets

Histogram Properties

Field Name	Description
Source > Default Sampling Mode	Set a default sampling mode for histogram. See Set Up Data Binding for Widgets
Source > Height	Set the height of the histogram chart. See Set Up Data Binding for Widgets
Source > Chart Title	Provide a title name for the histogram chart. The value must be a text string. See Set Up Data Binding for Widgets
Source > Show Header Controls	Specify a boolean value. `True` shows chart header controls. `False` hides chart header controls. See Set Up Data Binding for Widgets
Source > Scroll Percentage	Configure the scroll percentage based on the total time range.
Background Color	Adds a background color to the histogram chart.
Show Border	Select the check box to add a border to the histogram chart.
Border Color	If you choose to add a border, then set a color for the border.
Source > Logging Level	Applies to log messages. You can control the level of data logged to the browser console. The default value is `info`. Other valid values are `step`, `trace`, `debug`, `warning`, `error`, and `none`. See Set Up Data Binding for Widgets
Source > Historian Legend	Specify whether to show/hide legend by default. See Set Up Data Binding for Widgets
Number of Bins	Enter the default number of bins to appear on histogram.
Bins Color	Set a default color for the bins.
Normalized Curve Color	Set a default color for the normalized curve.