10.2 Settings

Select [Draw] on the menu bar and then click on [Trend Graph], or press the icon on the toolbar.

Afterward, left-click anywhere on the canvas to have the configuration window brought up, as shown below.

Item

Description

Name

Assign a unique name to the Trend object. You can use alphanumeric characters, the Korean alphabet, and special characters. If the name is duplicated with another Trend graph, the project will not be downloaded to the Xpanel.

Trend Type

Select a type of Trend.

General (YT)

A Trend which monitors the tag values based on a time interval.

SPC

A Trend which assigns x-coordinates to the data stored in the PLC to monitor simultaneously.

ST

A Trend which displays the user-defined Step Trend and monitors the logged data according to an existing step Trend.

Scope

A Trend that displays the data which is logged by the data logging or PLC memory.

Log

A Trend which displays the logged data in real-time. You can use multi-channel and log the data on an interval or a trigger.

XY

A Trend which displays the logged data in real time. The difference from Log Trend is the ability to assign an x-coordinate.

Display Base

Configures the direction of the Trend’s data. If you select ‘Left’, the Trend will be drawn from the left to the right. If you select’ Right’, the Trend will be drawn from the right to the left.

Display Time

Sets the time range of the Trend’s x-axis. The display time may be changed depending on the sampling time (YT Trend). In this case, you cannot assign a display time smaller than the sampling time or more than 5000 times greater than the sampling time.

Sampling Time

Configures the time interval for the data display. A smaller sampling time will increase the accuracy of the Trend graph. You can assign a value between 1 (100 ms) and the display time.

File Saving

Select this option to save the data displayed on the Trend graph to a file. This file will display the logged data on the Trend graph from previous sessions.

Regardless of the memory type, you can store the following amount of data:

YT Trend: 5000 bytes

Log Trend: 30000 bytes

XY Trend: 10000 bytes

If the number of data has exceeded the maximum, the system will delete the old data and save the new data. SPC Trend, ST Trend, and Scope Trend do not support this feature.

Main Memory

Saves the file in the Xpanel device. The default path is 'My Device\Xpanel\'.

SD Memory

Saves the file in the root directory of SD memory.

USB Memory

Saves the file in the root directory of USB memory.

Prev >>

Moves to the previous Trend configuration tab.

<< Next

Moves to the next Trend configuration tab.

OK

Adds the Trend graph to the page with the current configuration.

Cancel

Cancels the configuration and closes the configuration window.

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