Radial Gauge+ for AVEVA PI Vision

PI Vision radial gauge with several values on one dial

Show where a process value stands in its operating range at a glance. Radial Gauge+ draws one or more PI points or AF attributes on a circular scale in your PI Vision display, as needles, bars or markers, with multi-state ranges and the current value in the centre.

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Six Radial Gauge+ dials in PI Vision with needles, markers and a bar, multi-state range bars, ticks and scale labels in their range colours and large center values, next to the Trace Options settings with the data source list, display unit, value type, pointer type, colour and size factor
Radial Gauge+ v2.0 in PI Vision: six gauge configurations next to the Trace Options settings. Demo data. Select the image to enlarge.

PI Vision radial gauge scale, ticks and labels

Shape the dial to fit the display, from a narrow arc to a full circle, and give operators a scale they can read at a distance.

Full circles, half arcs or any sweep

Use the space on the display well: a compact half dial in a row of gauges, or a full circle for a key value.

  • Angle opens the arc from a half circle to a full circle.
  • Start rotates the arc.
  • An automatic range from the data, or a custom minimum and maximum.
  • Invert Scale runs the values counter-clockwise.
The same Radial Gauge+ value on three arcs, a full circle, a 240 degree arc and a 200 degree arc, each with range-coloured ticks, scale labels and a large center value
The same gauge as a full circle, a 240° arc and a 200° arc. Demo data. Select the image to enlarge.

Major and minor ticks, scale labels and units

Put the tick marks and numbers where operators expect them, including at the limits of each operating range.

  • Major and minor ticks, each with its own size and position inside, centred on or outside the arc.
  • Tick spacing automatic, at a fixed interval or at the multi-state boundaries.
  • Scale labels inside or outside, with offset, units, font size and opacity.
  • Ticks and labels in the colour of their range, or in a custom colour.
Radial Gauge+ Scale settings in two columns: Range Auto or Custom and Invert scale, Layout Angle and Start, Scale Show and Width, Major and Minor ticks with tick spacing, size, position Inside, Center or Outside and Color Custom or Range, and the Labels settings with position, offset, colour, units, font size, format and opacity
Range, layout, tick and label settings in the Scale section, here with range-coloured ticks and labels. Select the image to enlarge.

Multi-state operating ranges on a PI Vision gauge

Show normal, warning and alarm bands on the dial itself, so the position of the needle tells operators whether action is needed.

A range bar from your PI Vision multi-state

Draw the operating bands straight from the multi-state limits you already use in PI Vision, with no separate colour set-up.

  • Colour bands and limit positions taken from the multi-state configuration.
  • Range bar inside, centred on or outside the scale arc, with an offset.
  • Uniform width, or tapered with a different start and end width.
  • Opacity for the bands, and a gap between them.
Radial Gauge+ needle gauge with a tapered multi-state range bar in red, orange, green, cyan and blue inside the scale, gaps between the bands and major ticks at the range boundaries 20, 30, 75 and 80 percent, next to the Rangebar settings with Position Inside, Size Tapered, Start, End, Gap, Offset and Opacity
A tapered range bar inside the scale, with gaps between the bands and major ticks at the multi-state boundaries. Demo data. Select the image to enlarge.

Highlight the active range

Draw attention to the band the value is in now, and let the pointer change colour with it.

  • Highlight keeps the active band in full colour and dims the others.
  • Choose which data source drives the highlight.
  • Pointers in a fixed colour or in the colour of their current range.
  • A tooltip for each pointer or for each range.
Radial Gauge+ with the active warning range highlighted and the other bands dimmed, a needle in the colour of its range and a tooltip with the range information, next to the Range Bar Highlight setting with the data source selected
The active range highlighted and the needle in its range colour. Demo data; the limits are illustrative. Select the image to enlarge.

Needles, bars and markers for several values

Compare related values on one dial, choose how each one is drawn, and show the numbers operators need right in the gauge.

Needle, bar or marker for each data source

Put related values, such as suction and discharge pressure, on one shared scale and tell them apart at a glance.

  • One or more PI points or AF attributes on the same gauge.
  • Each data source as a needle, a bar filled from the scale minimum, or a marker on the arc.
  • Size factor, needle length, bar position with rounded ends, and five marker shapes.
  • Marker position and offset so several pointers do not overlap.
Two Radial Gauge+ dials: three data sources on one scale drawn as a needle and two markers with their values and names in the centre, and four sinusoid data sources drawn as bars, next to the Trace Options with the data source list, Type Marker, Bar or Needle and the Bar position and Rounded settings
A needle and two markers on one scale, and four data sources as bars. Demo data. Select the image to enlarge.

Center label and floating labels

Show the exact number next to the pointer position, so operators do not have to read it off the scale.

  • A center label with value, label and units, in the marker colour or a custom colour.
  • One source shown large in the centre, or several stacked.
  • Floating labels per pointer with the value, the name or both.
  • Font size, bold, background and units for each label.
Two Radial Gauge+ dials, one with a single large center value with units and label in the marker colour, and one with three data source labels stacked in the centre, next to the Center Label settings with Show, Value, Label, Units, Color Custom or Marker and Text Shadow
One large center value, and three labels stacked in the centre. Demo data. Select the image to enlarge.

Live values or summaries over a time range

Show the current reading, or a summary such as the average of the last shift, on the same dial.

  • Value type per data source: the live value, average, minimum, maximum, range or standard deviation.
  • Summaries over the display time range or the gauge’s own Start- and Endtimes.
  • A stale warning with an amber clock when a live value stops updating, naming the affected data sources.
  • Display units for AF attributes, built-in themes and container styles, and the PI Vision number format.
Radial Gauge+ Trace Options with Value Type Average for a bar, and the Data Retrieval and Data Quality settings with Start- and Endtimes Display time range, Stale warning on and Stale after 2 hours
Value type, data retrieval and stale warning settings. Select the image to enlarge.

PI Vision radial gauge examples

Four common ways teams use Radial Gauge+ on their displays.

Bearing temperature

Data
Bearing temperature of a pump with multi-state limits
Settings
270° arc, needle in its range colour, range bar with Highlight, center label with value and units
Shows
The current temperature and the operating band it is in

Related pressures on one dial

Data
Suction and discharge pressure of the same pump
Settings
Two data sources on one custom scale, a bar and a needle, floating labels with name and value
Shows
Both pressures against one scale, told apart by pointer type

Shift average

Data
Speed of a production line
Settings
Value type Average over the shift with Start- and Endtimes, rounded bar, ticks at the multi-state boundaries
Shows
The average speed of the shift against its target ranges

Overview of key values

Data
One key value per unit, one gauge each
Settings
Half arcs, the same theme on every gauge with Apply to all symbols, stale warning
Shows
Matching gauges that flag values that have stopped updating

Related symbols: Linear Gauge+ for horizontal or vertical scales, KPI Card+ for a value with target and sparkline, Value+ for a compact value with tooltip and ad hoc trend, and Alarm Sound+ for an audible threshold alarm.

Radial Gauge+ FAQ

Questions we are asked most often. Read the Radial Gauge+ documentation or ask a technical question.

When should we use Radial Gauge+ instead of Linear Gauge+ or the native PI Vision radial gauge?

Radial Gauge+ and Linear Gauge+ share the same features for several values on one scale, markers and bars, ticks, labels and multi-state ranges. Use Radial Gauge+ when a circular dial suits the display, or when you want a needle or the current value in the centre of the gauge. Use Linear Gauge+ for a horizontal or vertical scale, for example to compare related values in a compact row. The native PI Vision radial gauge shows the current value of a data item with an arc, triangle, pointer or line indicator, a dial face, a label and a scale, which is enough for a simple dial. Choose Radial Gauge+ when several values should share one dial, when the multi-state ranges should appear as a range bar with the active range highlighted, or when you need summaries over a time range or a stale warning. When operators need to see how a value changed over time, use a trend instead of a gauge.

How do the multi-state ranges work?

Radial Gauge+ uses the PI Vision multi-state configuration of a data source. The range bar draws its colour bands and limit positions from it, so you change colours and thresholds in the Multi-State settings, not in the gauge. Major ticks can sit on the range boundaries, pointers, ticks and scale labels can take the colour of their range, and Highlight emphasises the band the selected data source is in.

Can one gauge show several values?

Yes. Add several PI points or AF attributes with compatible units and ranges. Each data source has its own pointer type (needle, bar or marker), colour, size and label, and marker offsets keep pointers from overlapping. If several data sources are included in the center label, their values are stacked.

What happens when a value stops updating?

Switch on the stale warning in the Data Quality section. When the timestamp of a displayed live value is older than the threshold you set, the gauge shows an amber clock, and its tooltip shows the threshold and names each affected data source with its last event time and data age. An administrator can also enforce site-wide data quality settings.

What do we need to run it?

PI Vision 2021 or later with PI Web API, and PI AF Server 2018 SP2 or later. Radial Gauge+ shows numeric PI points or AF attributes, runs in PI Vision and uses each user’s existing PI permissions. It writes nothing to the PI System.

How do we get Radial Gauge+?

Radial Gauge+ is part of Vision Library+, together with the other Vision Library+ symbols. Request a trial to test it in your own PI Vision environment.

Try Radial Gauge+ in your PI Vision

Radial Gauge+ is included in Vision Library+, the PI Vision custom symbol library from Software Athlete. Test it on your own displays and data.

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