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⌚Timestamps:
00:00 - Intro
00:52 - Analog indicators
01:41 - Trends
02:47 - Colors
04:11 - Lines
04:53 - Vessels
05:28 - Process flow
06:09 - Texts

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Welcome back to our series of High-Performance HMI.
In this installment of the series, we are going to talk about the basic principles of High-Performance HMI and the Development of High-Performance HMI Philosophy.

1) When developing a High-Performance HMI, one of the main principles is the use of moving analog indicators.
The analog indicators display the range of the instrument being displayed, and in that range will be an indicator of the normal process limits.

2) In High-Performance HMI, making access to trend data should be a top priority in your design.
When developing trends for display, they should be implemented with certain characteristics and capabilities.

3) In a High-Performance HMI, color is strategically used and applied consistently across the entire project.

The ideal background color is Gray 3 (RGB 221, 221, 221) or Gray 4 (RGB 192, 192, 192).
The use of light gray will address the problems with glare, contrast, color interference, and operator fatigue.

Foreground colors should be kept to a minimum and used sparingly. For instance, process lines and tanks should be black, with more attention to line thickness.

Color should not be used to indicate process material, such as using white for steam, green for demineralized water, and pale blue for ethylene.

Color is used in High-Performance HMI to indicate an abnormal situation and is meant to draw the operator’s attention quickly.

4) Process lines should be dark gray or black, with line thickness or weight used to differentiate their significance.
The main process lines should be 3 pixels in width and secondary lines should be 1 pixel in width.

The use of arrows to depict process flow direction should be kept to a minimum, and primarily used where lines intersect or tee off from each other.

When you are using different line styles such as solid, dotted, and dashed, they should be limited to a maximum of three styles with the same line thickness.

5) Process vessels should be two-dimensional and not three. The vessel exterior should be outlined in a thin black or dark gray line and the vessel interior should be shaded without gradients and should be uniform in color.

Any internal components of a vessel should not be animated and there should not be any cut-away drawings showing vessel internals.

6) The process flow should be consistent in layout across all screens of a High-Performance HMI.
It should flow from left to right, vapors should flow up and liquids should flow down. In some instances, pumps and compressors can affect the depiction of vapor and liquid flow.

Entry and exit points are also navigation targets and should be shown as a different object than a non-navigation link label.

7) Static text on displays should be minimized, but not eliminated. The text should be dark gray and a simple font that is easily displayed on an LCD screen.

When you are using abbreviations, the abbreviations must be consistent across the entire project.

Use larger text to identify duplicated equipment like multiple pumps, and when you have isolated words, titles, and equipment designations the text should all be uppercase.

The use of a bold dark blue for live data is a good choice against the gray background and the dark gray static text.
If live data is shown in a table, align the numbers on the decimal point and do not display leading zeros.

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What is High-Performance HMI? [ Ссылка ]

High-Performance HMI Design Basics [ Ссылка ]

Detailed Design Principles of High-Performance HMI Displays [ Ссылка ]

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