Translations:API - Получение данных для графика/4/en
Материал из WebHMI Wiki
X-WH-SLICES is the number of values. The time interval X-WH-START-X-WH-END will be divided into X-WH-SLICES of equal intervals and the system will take the most detailed values for each of them.
X-WH-SLICES should be chosen based on the necessary detail of the graph. So, if you need to build a graph 800 pixels wide, then it makes no sense to choose more than 800 values from the log. And sometimes there will be enough 200-400 values depending on the width of the line on the graph.