Applies To:
  • CitectSCADA 5.xx
  • CitectHMI 5.xx

Can you advise me on the use of Virus Protection Software with CitectSCADA? 

Anti-virus software may be used with CitectSCADA and Knowledge Base Article Q3793 provides some advise on performance issues. Please be aware that when virus scanning software is enabled there may be issues with trend history files and other files actively being written to; for example the syslog.dat file when driver debugging. In typical real-time environments data needs to be requested, collected, processed and later stored without delays. Citect needs regular write access to the trend history files. Delays and potential locking of files by virus scanning each file write may lead to high CPU usage and instability. We recommend that the trend history files (and other files actively written to) are not included in virus scanning on writes.