Book Creator Add this page to your book Book Creator Remove this page from your book Manage book(0 page(s)) Help This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) Chart-NOK-Reason In the chart NOK reasons the error codes of the past 3 hours are visualized. For each type of error that occurred during the period, a horizontal line is drawn in the chart. On this line, the time when the error occurred is marked with a red dot. Next to the label of the error types, the sum of the errors of the respective type for the displayed period is shown in brackets.