Example 1: XY
Whenever you need to see one variable as a
function of another, you can use the SIMEQ function plotxy.
>>plotxy('x-Tagname', 'y-Tagname', 'From', 'To') e.g.
If you look in the upper left corner we have
asked to have basic fitting done to the data. We have chosen a linear fit.
We have used a linear fit for this example, and
then we have chosen to have
As it can be seen, many different fitting models
are included in Basic Fitting.
The xy plot is normally used to make a quick
check that process variables
Another typical example is as help to find the best circulation factor for a given cement and mill. Here the xy and curve fitting capabilities are used in a programmatic way, since the raw signals needs a little treatment before they can be used for this purpose.
The above shows an optimum performance using 105 t/h rejects from a cement
See also xyz plotting.