Applies To:
  • CitectSCADA 1.00 1.01 1.10 1.11 1.20 2.00 2.01

I want to access my TCP/IP based network from my Citect Network in order to use the extra resources that TCP/IP networks can provide. 

Microsoft have a version of TCP/IP for Windows for Workgroups 3.11. This latest version is implemented as a Windows VxD which gives higher performance and less memory constrains than previous versions of TCP/IP. This TCP/IP also provides a NetBIOS API that allows NetBIOS based programs to run over the TCP/IP Protocol. (This allows you to use the full functionality of Citect's NetBIOS Networking with TCP/IP.)

To set this up, install the Microsoft TCP/IP-32 Protocol as per their instructions. The testing at Citect's labs was done with the Final Beta release of this protocol. The Final Beta was dated 10th June 1994. It is available from Compuserve in the area MSNETWORKS and in Library 15.

The Help file that comes with this software fully describes the installation and setup information for the protocol. The help file also has a comprehensive explanation of TCP/IP and its various uses. It also describes the addressing information that TCP/IP uses and what all those numbers mean. The Microsoft TCP/IP - 32 also has support for WINS and DHCP (which are two different systems) that will allow you to automatically configure your TCP/IP workstations address information.

For Citect to use this Transport Layer, you must ensure that you have the NetBIOS over TCP/IP installed. The easiest way to do this is to make sure that you have no other protocols installed, and check that you can connect to other PC's on your local network. If you can connect to other PC's, then you have the NetBIOS support installed correctly.

Microsoft's previous version of TCP/IP was a DOS TSR - it did not operate correctly with Citect for Windows. D not try to use this version of TCP/IP. See Q1242 for details.