OPC Servers are often available from your PLC, SCADA System, Control System, or Historian vendor and may already be a part of your existing system. You can also purchase 3rd party OPC Servers from companies such as Kepware (www.kepware.com). See www.opcfoundation.org for more information on OPC.
Simplify configuration with SCADA
Simplify integration of TopView with popular SCADA/HMI packages with SCADA Connect