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Period Comparison Chart
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PI Vision Custom Symbol • Vision Library+
Compare Today, Yesterday, Last Month, and Last Year in One Chart
Period Comparison Chart+ lets you compare the same PI Vision datasource across multiple time periods on a shared comparison axis. Analyze shift-over-shift, day-over-day, month-over-month, and year-over-year performance directly inside AVEVA PI Vision without duplicating trends or manually rebuilding historical views.
Period-Based Comparison Built for Operations and Reporting
Dynamic Period Layers
- Display Time or Calendar Periods: Compare exact display windows such as the current shift, or snap to calendar periods such as days, weeks, months, and years.
- Automatic Layer Generation: Build comparisons like today versus yesterday, this month versus prior months, or this year versus previous years with a few simple settings.
- Manual Reference Periods: Add custom comparison layers for known good runs, abnormal windows, campaign periods, or hand-picked troubleshooting intervals.
Baseline and KPI Comparison
- Delta and Percent Delta: Transform historical layers into direct difference views so users can see how far the current period is above or below a selected reference.
- Band Between Series: Keep the original trend shape visible while shading the distance between a layer and its baseline period.
- Summary Retrieval: Turn raw time-series data into interval-based totals, averages, minimums, maximums, counts, standard deviations, or percent-good values.
Interactive Runtime Analysis
- Integrated Summary Table: Review exact values and statistics while using the table as a working control surface for visibility, focus, and reference periods.
- Hide, Isolate, and Pin Layers: Temporarily hide noisy series, click a row to isolate one layer, or pin important reference periods so they remain visible as dynamic layers update.
- Fullscreen Chart Review: Double-click the chart to open a larger analysis view while preserving useful state such as legend selections and zoom position.
From Repeated Time Windows to Clear Operational Insight
Daily and Shift Performance
Compare the current shift against previous shifts or today against yesterday to spot drift, delays, abnormal ramps, or performance gaps while the period is still in progress.
Month-over-Month Trends
Overlay calendar months or weeks to see whether production, energy, quality, or utilization is tracking ahead of or behind previous periods.
Year-over-Year Benchmarking
Compare the same day, month, or year across prior years to understand seasonality, benchmark against historical best performance, and detect long-term changes.
Reference Period Comparison
Pin a known good or known bad historical period and keep it visible as a stable reference while the current display time and dynamic layers continue to change.
Period Comparison Built for Dashboards, Reviews, and Troubleshooting
Today vs Yesterday
Use calendar day layers to compare the current day against yesterday on the same relative timeline. Operators can quickly see whether today's values are tracking normally or diverging from the previous day.
Monthly and Year-over-Year Comparison
Snap layers to calendar months or years to compare equivalent business periods. This is ideal for seasonal processes, energy consumption, production totals, and reporting views where calendar alignment matters.
Pin Periods
Pin important time periods for comparison, so they are fixed on the chart even when the display time changes.
Interactive Summary Table
The built-in table is more than a legend. Hide or show individual series, click rows to isolate a layer, pin important reference periods, and review value, average, min, max, count, sum, and other statistics in one place.
See Period Comparison Chart+ in Action
Watch a quick demo to see how easy it is to build period layers, compare current performance against historical references, and use the summary table for runtime analysis inside AVEVA PI Vision.
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