Howdy. Using a propietary card in a PC to talk to a PLC with a DDE driver. Looking for help in how to implement a distributed VB application using the DDE driver on one box with Ethernet distribution on with the clients. Any suggestions?? Thanks in advance

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Jeremy Pollard, CET
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---------- Forwarded message ----------
From: "Tanweer Ahmed" <[email protected]>
To: "The Automation mailing list
Subject: Re: COMM, APPS: NetDDE

Which propietary card
Which PLC and DDE driver ?

Tanweer Ahmed
[email protected]

----- Original Message -----
> ------- Forwarded message follows -------
> From: "Jeremy Pollard" <[email protected]>
> To: "The Automation mailing list>
> Subject: COMM, APPS: NetDDE
>
> Howdy. Using a propietary card in a PC to talk to a PLC with a DDE driver.
> Looking for help in how to implement a distributed VB application using the
> DDE driver on one box with Ethernet distribution on with the clients.
> Any suggestions?? Thanks in advance
>
> Cheers from:
>
> Jeremy Pollard, CET

 

Your best bet is once you get it to the vb app via DDE is too implement a client server setup using the MSWinsock control. I have done this in the past and it was relatively easy. Just make sure you think it through. You need to build a sub protocol that you will use to define the transferred data, and maybe update the actual values.

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