Section 4 Using Functions 4-1 Application
4-6
NS Series Programming Manual
4-1-2 Always Reading PLC Word Contents
Displaying Word Contents on Data Log Graph
Example: To use data logging function and data log graphs.
1. Register a group with the following settings under the data log settings.
Log period: Always.
Address: Word number for monitoring word contents.
2. Create a data log graph on the screen with the following settings.
Group name: The name of the group registered in step 1.
Scroll bar: Select Use scroll bar.
The reading of the contents of the specified word will start at the same time as operation starts, re-
gardless of whether or not a data log graph is set to be displayed.
Data read starts at the same time as
operation starts.
Operation start
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Display the data log screen to display the latest status.
The latest data log graph is displayed
based on the collected data.
The contents of the specified word continue to be read even while other screens are being displayed.
Different screen
Screen switch
Original screen
Data gathered during
different screen display.
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