Coffee Machine scenario SECTION 3 Advanced Tutorial
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Border Style = THICK
Display Mode = POPUP
Top = 0
Left = 505
Height = 582
Width = 295
2. Add a 'Chart' Graphical Object for displaying alarms in real time. Configure
the object to graph the 5 resource levels (coffee_level etc), with
appropriate labels
3. Use the Workspace to remove the Display On Run option from the popup
menu.
4. Add a 'Trend Graph' Graphical Object for displaying water_temperature
and milk_temperature. Configure as preferred, scaling from 0 to 200.
5. Add 2 sliders and link to water_temperature and milk_temperature to
simulate changing temperatures.
6. Add a 'Close' button with an animation to close the page.
7. Open Main page and add an animation to the "Graphs & Charts" button
to display the new page called Graphs.
3-1-10 Data Logging
In addition to simple trending, we can add comprehensive Data Logging. First
create the items to log.
1, 2, 3… 1. Open the Workspace Editor and select the Data Logging tab.
2. Right click and select Add DataSet…
3. Right click the added Data Set and select Add Item…. Add the item Milk
Temperature and enter milk_temperature in the expression field.
4. Repeat to add an item called Water Temperature for point
water_temperature.
Then create a page to view and export the data and control logging:
1, 2, 3… 1. Make a new page with the following properties
Page Title = Datalog
Border Style = THICK
Display Mode = POPUP
Top = 0
Left = 505
Height = 582
Width = 295
2. Use the Workspace to remove the Display On Run option from the popup
menu.
3. Add a button to automatically open the data log viewer using the
command "OpenLogView("Dataset1", "Milk Temperature,Water
Temperature", "")"
4. Add a button to export data to CSV using the command
"ExportLog("Dataset1", "Milk Temperature,Water Temperature",
"CSV", 0, "c:\coffee\export.txt")"
5. Add a button to manually restart logging using the command
"StartLogging("Dataset1")"
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