Drivers Guide - Disable Scanner (Actions that are Common to Many Drivers)

Disable Scanner

Associated with: Scanners and Slave sources

Security permission required to access this pick action: Disable Points

NOTE: The 'Disable...' series of pick actions are assigned the 'Disable Points' security permission so that users with that permission can disable database items without necessarily being given the full 'Configuration' security permission. A user, such as an operator, whose User Account is given the 'Disable Points' permission but not the 'Configure' permission can disable a database item, but is prevented from altering the rest of that item's configuration.

Use this pick action to take a scanner or Slave source Out of Service.

The Disable Scanner pick action clears the scanner or source's In Service property, so that the item is no longer active.

You might want to disable a scanner, for example, if ClearSCADA has detected a problem with the devices that the scanner polls. Once the problem has been rectified, use the Enable Scanner pick action to place the item back In Service.

ClearSCADA logs an entry in the Event Journal whenever either pick action is used. The entry indicates whether the scanner or Slave source has been enabled or disabled.

Be aware that disabling a scanner also de-activates the points associated with that scanner, although their configuration will remain unchanged.

If using this pick action with the Automation Interface, you need to specify the method name Disable.