Applies To:
  • CitectSCADA
Summary:
In Citect promotional and sales documentation, the OPC (Client) and DDEDRV (Client) drivers are listed as supported under both Windows 95 and Windows NT. Does this mean a solution is available under both operating systems? 

Solution:
No, a solution may not be available under both operating systems. While Citect's OPC and DDEDRV drivers are supported under both operating systems, they interface with OPC Servers and DDE Servers respectively that may not be available under both operating systems. The integrator should check the operating systems supported by the server to determine if a complete solution is available on a particular operating system.

For example, the ABB AF100 OPC Server is available only under Windows NT. Therefore, only Windows NT will provide a complete solution, as both Citect's OPC Client driver and ABB's AF100 OPC Server are supported under Windows NT.

 
Keywords:
 

Attachments