Enable and configure Control Interlock

Follow this procedure to configure the triggering of a Control Interlock on an analog, a status, or a multistate point.

Notes: You must have at least "DNA Permission - Supervise_SCADA" permission to access the CONTROL INTERLOCK dialog box.

In the following procedure, an analog point is used as an example. The procedure is similar for configuring status, and multistate points. The Analog Control dialog box is opened through either a station schematic or the Analog Summary window. For information on the Analog Summary window, refer to the AVEVA Enterprise SCADA HMI Controller documentation.

To enable and configure control interlock

1. Do one of the following to open the Control dialog box associated with the point you want to verify:

   • On a station schematic, select either a value or the device associated with the point.

   • On the Analog Summary window, select the row header for the point.

     

2. On the Analog Control dialog box, select the Control Interlock icon to open the CONTROL INTERLOCK dialog box

   Control Interlock icon

   

   CONTROL INTERLOCK dialog box

   

3. Use the table below as a guide to modifying the items on the CONTROL INTERLOCK dialog box.

4. Select Submit.

   Item	Description
   Warn Mode	If selected, Controllers receive a command confirmation dialog box when they attempt to issue a command. When not selected (default), Control Interlock is in Prevent Mode. In Prevent Mode, Operators are prevented from issuing commands to analog, status, and multistate points. Note: Open Platform Communications (OPC) setpoints are not affected when Control Interlock is in Warn Mode.
   Analog Interlock Enable	If selected, and the analog State field matches the flag.msgtxt field of the analog point listed in the Name field, a Control Interlock is triggered.
   Name	The name of the analog point whose flag.msgtxt field is used to determine whether or not a Control Interlock is triggered.
   State	The interlock analog state string.
   Status Interlock Enable	If selected, and the status State field matches the flag.msgtxt field of the status point listed in the Name field, a Control Interlock is triggered.
   Name	The name of the status point whose flag.msgtxt field is used to determine whether or not a Control Interlock is triggered.
   State	The interlock status state string.
   Multistate Interlock Enable	If selected, and the multistate State field matches the flag.msgtxt field of the multistate point listed in the Name field, a Control Interlock is triggered.
   Name	The name of the multistate point whose flag.msgtxt field is used to determine whether or not a Control Interlock is triggered.
   State	The interlock multistate state string.