Differences

This shows you the differences between two versions of the page.

--- events_in_machine_monitoring [2020/12/02 15:16] – emozolyak
+++ events_in_machine_monitoring [2022/01/15 19:06] (current) – ↷ Links adapted because of a move operation 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== Using events, lua, screens and JS for complex reports ======
+In this application, the customer had production line with multiple machine installed. There were PLCs in each machine which counted run, stop, failure hours and performance counter.
+The task was to create a report in WebHMI for each machine with these figures for the given period.
+{{ network:machines_task.png?direct&600 |}}
+There is an event report builder, but it in this application it would had the following drawbacks:
+  *N reports would have to be configured.
+  *For each N several events would have to set up - for day, night, shifts, weeks etc reports
+  *There reports would likely be occasionally broken at the times when admin changes something in the project.
+Because all data were logged and existed in the DB, a self-evident appeal arised for the solution or tool, which just would made a request for the required data in the DB and showed them.
+After considering possible solution, the following WebHMI's functionanlity helped to create a __single elegant tool__:
+   *Screen with dashboard where user chooses time period for the machine and the machine number
+   *Screen widgets: register value to show perfomance data and pie chart to show percentage of run/stop hours
+   *Lua script which makes API request to WebHMI itself for the run, stop, performace counter values and calculates the differences
+   *Graph to show how the machine performed during this time
+   *JS to modifiy graph properties (parameter to show and time axis settings)
+{{ network:solution_structure.png?direct&800 |}}
+{{ network:screen_shot_eng.png?direct&800 |}}