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. |