Honeywell 95-7769-01 Manual De Usuario

95-7769—01

12

TIP: You can enable or disable trends from the Trends Setup 

screen.

1. Click the Trends tab. The View Trends page appears.
2. Click the Trend Setup tab. The Trend Setup page 

appears.

1. Click the Trends tab. The View Trends page appears.
2. Click the Trend Setup tab. The Trend Setup page 

appears.

3. Click . 

The 

Add New Trend page appears.

4. Enter/select the following details:

NOTE: All the fields in this section are mandatory.

• Trend Name – The unique name for the trend.

• Select Point – Click Select Point. Select a Channel, 

Device, and Point. Click OK. The selected values 

appear in the respective fields.

NOTE: Start time must be less than the end time.

• Start Time – The start time of the sampling period. 

Click   to select the date, month, and year

• End Time – Check Enable End Time to enable the 

end time field. The end time of the sampling period. 

Click   to select the date, month, and year. 

• Trend Type – Indicates the type of trend.

• Periodic Sampling – Indicates the time interval 

between two successive read operations on the 

point. Select Periodic Sampling option and in the 

Sampling Interval list, select the desired time 

interval.

The sampling interval time can range from a few 

seconds to a few minutes. The range covered is:

•

15 seconds

• 30 seconds

• 60 seconds (1 minute)

• 900 seconds (15 minutes)

• 1800 seconds (30 minutes)

• 2700 seconds (45 minutes)

• 3600 seconds (60 minutes)

• Change of Value – Indicates that the next sample 

is collected when the point value changes. This 

results in less number of samples getting collected 

for plotting the same trend as compared to Periodic 

Sampling. Change Tolerance is required only for 

numeric points. Select a numeric point from the 

Select Point option and type a tolerance value after 

which the data logging begins. 

• Trend Limit – Roll Over is the default selection. 

This option trends the point forever.

• Roll Over – Indicates that the readings of 

sampling are generated continuously. When the 

sample limit is reached, the oldest sample is 

replaced with the next sample and trending 

continues in that fashion.

• Stop when full – Indicates that the trend 

sampling is stopped after it reaches the set limit.

• Max number of Samples – The maximum 

number of samples. Select the number of 

samples to be generated from the list.

NOTE: WebVision uses the polling mechanism to read point 

values at regular interval. It may take up to 30 

seconds to detect a point value. If the point value 

changes at a higher frequency than 30 seconds, 

WebVision may not be able to detect the changes.

5. Click Save to save the settings.

NOTE: Click Cancel to clear the fields. 

1. Click the Trends Setup tab. The View Trends page 

appears.

2. Select a Trend from the Trends list. The details of the 

selected Trend appear.

3. Modify the required fields as described in step 4 of “To 

4. Click Save to save the settings.

NOTE: Click Cancel to cancel the settings.

1. Click the Trends tab. The View Trends page appears.
2. Go to Trends Setup. Select the trend that you want to 

delete from the Trends listed on the left corner of the 

screen.

3. Click Delete. A confirmation message appears.
4. Click OK to confirm the deletion.

NOTE: Click Cancel to cancel the deletion.

TIP: To delete all the trends simultaneously, select the check 

box in the column header and click Delete Trend.