Using the Thin Web Client Context Menu

The CygNet Thin Web Client supports its own context menu in the web view. When activated the context menu appears on the right side of the page. From the CygNet TWC web view context menu you can view point values, acknowledge a point in alarm, view and edit alarm values, and add a selected point to an ad-hoc chart.

The following Canvas controls support a context menu in the CygNet TWC web view:

Using the Context Menu

  • Right-click on a control to view the context menu for a selected point. When the context menu is active the main part of the page is dimmed. The context menu is divided into four sections:
    1. Acknowledge Alarm — If the point is in alarm, the Acknowledge Alarm icon will indicate this state. Click to acknowledge it and the Acknowledge Alarm will disappear.
    2. Current Value — View read-only Current Value attributes for the selected point.
    3. Alarm Summary — Click the toggle switch to view Alarm Summary values.

      From here you can edit alarm threshold values or the alarm priority in the context menu, which will be written back to the point on the CygNet host server. A warning will show if you do not have the appropriate security access level to edit points.

      1. Click Edit button (Edit) then click on the Value or Priority you want to edit.
      2. Enter a new value or use the spin control to increase or decrease the value.
      3. Click Edit button (Save) to write the new value back to the point configuration on the CygNet host server.
      4. Or click Cancel edit (Cancel) to abort and return to the read-only mode.
    4. Chart — Click the toggle switch to view a quick Chart for a selected point. The series shows the last eight hours of value history and will update with each new point value received. Hover over any point in the series to reveal a small popup showing the UDC, point value, and timestamp. From here you can add the currently viewed point to a new or existing ad hoc chart which will display in a new browser tab. Note that an ad hoc chart is not a template. Any saved chart is hard-coded with specific point tags.
      1. Click Add to new chart to add the selected point to a new ad hoc chart. A new chart titled NewChart<n> will open in a new browser tab, where you can rename, duplicate, or delete the chart. You can also view the chart data in a grid and export data to an Excel file.
      2. Click Existing chart(s) to open a drop-down list of previously saved ad hoc charts.
      3. Click the + <chart name> to add the selected point to that chart. The selected chart will open in a new browser tab.  Note: If you add a point to an existing chart that is already opened in another tab, then the point is added to that open chart but TWC does not shift focus to that tab. You will remain on the current tab.
      4. Click Existing chart(s) again to close the drop-down list of existing charts.

      Once saved an ad hoc chart can be viewed from the main CygNet TWC web view via the Saved Charts (Saved Charts ) button. See Viewing Data in a TWC Ad Hoc Chart for more information about working with ad hoc charts.

  • Click Close the context menu (Close) to close the context menu and return to the TWC page that launched the menu.
  

TWC Context Menu - Current Value Normal

TWC Context Menu:
Current Value Normal

TWC Context Menu - Current Value in Alarm

TWC Context Menu:
Current Value in Alarm

TWC Context Menu - Alarm Summary Edit

TWC Context Menu:
Alarm Summary in edit mode

TWC Context Menu - Chart

TWC Context Menu: Chart

Context Menu Properties

The TWC context menu consists of the following sections. The following table describes the properties and attributes visible in the menu.

Property Description

Current Value

Displays current values and other statistics in the associated CygNet CVS applicable to the selected point in the control. The point values and statistics displayed are for those points configured in an associated Point Service.

Time

Displays the last time that the current value was updated.

Value

Displays the applicable current value for the point. Varies depending on point type.

Alt. Value

Displays the current value as converted by the specified alternate units.

Alarm Priority Category

Displays the applicable Alarm Priority Category for the point.

Point State

Displays the applicable Point State for the point.

Acknowledge Alarm

An alarm icon will indicate if the point is in alarm.

  Point is in alarm.

Click the icon to acknowledge the alarm.

Alarm Summary

Displays information about the point's alarms, as configured in the PNT Editor in CygNet Explorer.

Toggle Alarm Summary

Indicates whether to display alarm summary details for the point. Click the toggle to show or hide the alarm summary.

Name

Displays the name of the alarm for the enabled alarm bit for the point.

Value 1

Displays the value of "Val 1" for the alarm calculation. For all alarms except Out-of-Range, this is the alarm Setpoint Value. For Out-of-Range, this specifies the High Out-of-Range value. The value can be any rational number; however, value field is limited to 16 characters.

Value 2

Displays the value of "Val 2" for the alarm calculation. This is applicable only to the Out-of-Range alarm. It specifies the Low Out-of-Range value. The value can be any rational number; however, value field is limited to 16 characters.

Priority value

Displays the priority value for the point's alarm. Option is 0 to 99, with 99 being the highest.

Category

Displays the priority category for the point's alarm. For analog alarms the values are LOW, MEDIUM, HIGH, or CRITICAL.

Edit / Save / Cancel

From here you can edit alarm threshold values or the alarm priority in the context menu, which will be written back to the point on the CygNet host server. A warning will show if you do not have the appropriate security access level to edit points.

  1. Click Edit button (Edit) then click on the Value or Priority you want to edit.
  2. Enter a new value or use the spin control to increase or decrease the value.
  3. Click Edit button (Save) to write the new value back to the point configuration on the CygNet host server.
  4. Or click Cancel edit (Cancel) to abort and return to the read-only mode.

Chart

Displays a trend line for the selected point showing the last eight hours of value history. The chart will update with each new point value received. Hover over any point in the trend to see the point value.

Add to new chart

Add to existing chart

You can add points to a new or existing ad hoc chart from the context menu.

  1. Click Add to new chart to add the selected point to a new ad hoc chart. A new chart titled NewChart<n> will open in a new browser tab, where you can rename, duplicate, or delete the chart. You can also view the chart data in a grid and export data to an Excel file.
  2. Click Existing chart(s) to open a drop-down list of previously saved ad hoc charts.
  3. Click the + <chart name> to add the selected point to that chart. The selected chart will open in a new browser tab.  Note: If you add a point to an existing chart that is already opened in another tab, then the point is added to that open chart but TWC does not shift focus to that tab. You will remain on the current tab.
  4. Click Existing chart(s) again to close the drop-down list of existing charts.

Once saved an ad hoc chart can be viewed from the main CygNet TWC web view via the Saved Charts (Saved Charts ) button. See Viewing Data in a TWC Ad Hoc Chart for more information about working with ad hoc charts.

Additional Resources

For more information about CygNet point current values, configuring and working with alarms, see: