10.4 Exercise

- This section shows an example of the Trend feature. Please utilize the feature according to your site environment.

Exercise: Displaying the Logged Data with Trend

In this example, you will collect data and monitor the logged data with the Trend object.

(1) Data Logging

a) Select [Tools] –> [Data Logging] to configure the data logging model as shown below.

※ Refer to the ‘Data Logging’ manual for more information.

b) If you wish to check the logged data, go to [Draw] –> [Data Logging] to configure the data logging object.

(2) Trend Configuration

a) Select [Draw] –> [Trend] to bring up the configuration window as shown below. Select the Trend type as ‘Scope’ and configure the object as shown below.

b) In the [Pen] tab, check the ‘Using Data Logging’ option and select the data logging model. The tags will be automatically registered as pens.

c) In the [Scope Tag] tab, assign the tags as shown below. You must assign tags for the Screen Control Tag, Min/Max Val, Block Number. Since this trend object refers to the data logging model, Data Count Tag is not necessary. Press [OK] to finish the configuration.

d) To change the value of the Screen Control tag, create an object with the ‘Entry Data’ feature as shown below. Make another object to change the value of the Block Number tag.

(3) Checking the Operation

a) Check the logged data with the data logging object. To display the logged data with the Trend object, set the Block Number tag’s value as the desired value. Then change the Screen Control tag’s value to 3.

b) The Trend object will draw the graph as shown below.

c) Set the Screen Control tag’s value as 2 to clear the object as shown below.