Hi Iskander,
We typically use LabVIEW to communicate with DSC Citadel, so you will likely want to have LabVIEW installed. The NI LabVIEW Datalogging and Supervisory Control (DSC) Module is actually installed along with LabVIEW.
In theory, you can install the Run-Time System for DSC on a computer without LabVIEW which will also install Citadel. This may be the route you would like to pursue but keep in mind that the DSC Run-Time system will also require a license.
Hope this helps,
Nathan B
Applications Engineer
National Instruments
