Applies To:
  • CitectSCADA 1.00, 1.01, 1.10, 1.11, 2.00

Under high network loading conditions, Citect may crash if you are using the Novell NetBIOS emulator. Citect may also crash in a redundant server configuration, if one of the Servers is powered down without doing a normal Citect Shutdown.

When Citect crashes, the computer will be frozen and must be power cycled to restart. You may also see the message 'NetBIOS ABEND Internal stack overflow' or black rectangles where this message should have been shown down the left side of your screen. 

A work around for this problem has been implemented in Version 1.2 and 2.01 of Citect. If you require Novell NetBIOS emulator upgrade to these Versions. You may also get around the problem by using the NetBIOS which is supplied with Windows for Workgroups.