Applies To:
  • CitectSCADA 5.41
  • CitectHMI 5.41

Apparent driver crash at startup of Citect (actually crashing in the ctregion.dll) after an upgrade to V5.41.

Example: Tiway card is set to IRQ 10 & address CC00, the device is set to "standby". What is the cause of the crash?


This problem is related to hardware access at startup using the WinRT device driver. The problem has been corrected in V5.42 by ensuring that a valid device number is used when trying to access registry information for the hardware.