Linear Gauge+ for AVEVA PI Vision
Show where a value sits in its operating range at a glance. Linear Gauge+ places one or more PI points or AF attributes on a horizontal or vertical scale in your PI Vision display, as markers or bars, with the multi-state ranges drawn alongside.
Put one value or a group of related values on a single scale, and choose for each how it is drawn and what it shows.
Compare related values in a compact gauge instead of placing several symbols side by side.
Show a value as a marker at its position on the scale, or as a bar filled from the scale minimum, for levels and loads.
Show the latest value, or a summary of each data source over the display time range or a time range of its own.
Draw the normal, warning and alarm ranges from your PI Vision multi-state rules along the scale, so the operating state is visible without reading the number.
The range bar uses the colours and limits of the multi-state rules you already configure in PI Vision. Change a limit there and the gauge follows.
Emphasise the range the value is in and dim the others, and put the scale ticks exactly on the range limits.
Fit the gauge to the space on the display, label it the way operators read it, and flag values that have stopped updating.
Use a tall gauge for levels and temperatures or a flat one for a row of values, and match its look to the rest of the display.
Read the number next to each marker or bar, and see when a value has stopped updating.
Four common ways teams use Linear Gauge+ on their displays.
Questions we are asked most often. Read the Linear Gauge+ documentation or ask a technical question.
Use a gauge for the current state and a trend when operators need to see how a value changed over time. Choose Linear Gauge+ for a compact horizontal or vertical layout, for several related values on one shared scale, or for levels shown as bars. Radial Gauge+ is the better fit when a circular dial with a needle and a centre value suits the display. PI Vision’s own gauge remains a good choice for a simple single value; Linear Gauge+ adds markers and bars on one scale, a multi-state range bar with the active range highlighted, summary values over a time range, the stale warning and the Vision Library+ themes.
The range bar uses the colours and limits from the PI Vision multi-state rules on a data source, so you edit the range values in the multi-state configuration, not in the gauge. The range bar settings appear once multi-state is enabled for at least one data source. Highlight and the colour gradient cannot be on at the same time, and the gradient is available on horizontal gauges.
Yes. Add several data sources and give each its own marker or bar, colour and label. Use data sources with compatible units and ranges, set a custom minimum and maximum that includes every expected value, and use different marker offsets or label positions when values lie close together.
Each data source can show its current value or a summary such as the average, minimum, maximum or range. Summaries are calculated over the display time range, or over the time range set under Data Retrieval. If a summary looks unexpected, check the selected value type and the active time range.
PI Vision 2021 or later with PI Web API, and PI AF Server 2018 SP2 or later. Linear Gauge+ runs in PI Vision and uses each user’s existing PI permissions.
Linear 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.
Linear Gauge+ is included in Vision Library+, the PI Vision custom symbol library from Software Athlete. Test it on your own displays and data.
Your cart is currently empty.
Start Shopping
