How to use OPC server and Visual Basic to program SCADA

[ChanThien]

I have KepServerEx 4.0 ( full diver for every common PLC ) but i don't have any software SCADA. So, i can use visual basic to program SCADA , can't i ? As if anyone know how to do that, please tell me . Thanks to your helps.

[DanW]

specifically: http://www.opcfoundation.org/Default.aspx/...r.asp?faq_id=18 http://www.opcfoundation.org/Default.aspx/...r.asp?faq_id=32 or search for "visual" on the OPC Foundation site. Dan

[ChanThien]

I think i have OPC Foundation when installing KepServerEx but i don't have Library VB or VC++ to use function in DLL componnent. So, if you have , can you give me a copy ? Edited October 6, 2006 by ChanThien

[GerryM]

The links Dan provided tell you what dlls to use. In VB add a reference to OPC Automation. Then follow the OPC references on how to use the OPC objects. Dan's links provide the info. on where to download the correct OPC reference material. The above information is only good for VB 6 and earlier. If you are using VB.net then you need to join the OPC foundation to get the correct dlls or buy a third party component such as www.metadynamics.com or http://www.opcsystems.com/ or others. If you are not experienced with VB programming I would buy a SCADA. It will take you a long time to program it if you want something other than a simple display.

[ChanThien]

If you want to use DLLs , you must know name of functions in DLLs .But i don't know them.

[GerryM]

This is probably what you need, however for some reason you need to be an opc member to download it. http://www.opcfoundation.org/DownloadFile....=283&CU=104

[ChanThien]

Thank you so much! I will try to get it.

[Friday]

Hi, You can use lowcost OPC activeX control to develop SCADA within unlimite tags. COPC32 is the small and powerful ocx you could try at http://www.enco.co.th/COPCEng/index.htm You can use it with local and remote OPC Server. You can import OPC tag list from OPC Servers CSV file. Many tutorials helps you to get start with COPC32. Edited November 1, 2006 by Friday

[Nathan]

You might also be interested in FactorySQL and FactoryPMI. They are cost effective applications to develop SQL database and web launched SCADA applications. They are easy to use and programmatically very powerful. If you choose to write your own SCADA application, use the OPC foundation source code libraries to communicate with your OPC server. I believe that you need an OPC member login to download the code. LMK if you're having trouble getting it.