Applies To:
  • CitectSCADA v5.x,6.x,7.x
  • VijeoCitect v5.x,6.x,7.x

 I receive the error message Out of Kernel Queues 'Mem.Grp.2450'. Increasing [Kernel] Queues as per Q1189 only delays the issue, and it will eventually occur.  

There are a few potential causes for this:

1. An IO Device has been created in an included project, and the associated port is in the main project. To resolve, move IO Device and port to the same project.

2. Make sure you close handles where necessary, and avoid creating new handles if you cannot close them (e.g. devopen and devclose).

3. Make sure you no not have increasing numbers of endless cicode loops, or cicode which fails to complete. 

From V5.42 onwards, the maximum value of [Kernel] Queues has been increased to 5000.

 Out of Kernel Queues, Mem.Grp.2450, Kernel, Queues