The iClient retrieves data and alarms from the active SCADA node in run mode. If a SCADA failover event occurs, the currently active SCADA Server automatically switches control over to the newly active SCADA (the previous standby SCADA), and they switch roles. If an iClient does not switch to the newly active SCADA, an iFIX Notification window appears on the iClient until the switch to the newly active SCADA completes.
Another instance where the iFIX Notification window displays is when the iClient loses all iFIX network connections to the active SCADA, but still has an iFIX networking connection to the standby SCADA. The network connection between the SCADA pair that is being used for data synchronization is still established, and the iClient switches to the standby SCADA. When this occurs, an iFIX Notification message box appears on the iClient. Note that while in this condition, iFIX is receiving data, but that data may be out of date; you cannot execute a write from this iClient; you will not receive new alarms. The Notification window continues to display until the iClient switches to get its data from the active SCADA.
If an iFIX WorkSpace pop-up message appears, for instance to request to write a tag, it appears overlapping the iFIXNotification dialog box.
NOTE: The Minimize button, the first button in the upper right corner of this dialog box, reduces this dialog box to display the title bar only. The text "iFIX Notification" is the only text that appears in this title bar. Clicking the Restore button, the middle button in the upper right corner, restores the dialog to display the original state. You can also double-click the title bar to toggle between states.
The iFIX Notification window closes within a minute after the iFIX networking connection to the active SCADA is restored.
Example of the iFIX Notification Window Under Normal Conditions
This is the message that appears when there are no issues. You can open this window at any time, by launching it from the system tray:
If you click the arrow for more information, the following shows an example of what appears when the failover nodes are in a good state:
Example of the iFIX Notification Window when a Change Occurs
This is an example message that appears when an issue occurs.
If you click the arrow for more information, the following shows an example of what appears in a problem state:
