Grayscale graphics - do they help?

aaroncrews's picture
Submitted by aaroncrews on Wed, 08/12/2009 - 17:12.

A lot of modernization customers are looking for the latest and greatest in HMI. One of the topics that always comes up is a move to grayscale graphics, with abnormal conditions in bright color.

Is grayscale really the way to go? To what extent?

‹ How to gain traction for Grayscale graphics Implementation Communication Important ›

HMI Gray the way to go

putman--27094's picture
Submitted by putman--27094 on Fri, 08/21/2009 - 07:31.

It is the best way to go; we did this already 10 years ago, the dark screen concept. Some times in the start you will have some remarks from the operation people. We only show the information when it is important. Like valve output > 95% or below <5% intensive green, Valve on Manual Green, Low alarm Yellow, High Alarm Red and so on.
By doing this the operator get much more focused.
.

I agree that 'gray is the

AndyK's picture
Submitted by AndyK on Sun, 09/06/2009 - 23:39.

I agree that 'gray is the way'. But in my experience (5 jobs), operators intial reaction is almost always negative, but after a short time (weeks) they are very positive. If given the choice (during FEED or prelim design) operators will resist unless they are 'sold' the idea in some detail.