I don't think I have any answers for you, as I have questions of my own.
I am using LabVIEW and a Beckhoff TwinCat software OPC server, and I am
still searching for a method to increase the performance of the
communication. My goal is being able to read/write at least 100
different data points every 100ms. Right now, I have tried multiple
methods, but few allow for this. I really think that 100 data points/100
ms is a reasonable goal. My 486 could record two 16-bit channels at 44.1
kHz, why can't my 1.8GHz computer handle 100 channels at 10Hz? I know
that is a poor comparison, but I see no reason why I shouldn't be able
to record 100channels/100ms.
Currently, communication between LabVIEW and the TwinCAT OPC server is
via LabVIEW datasockets.
Stephen
Paul Edwards wrote:
> Hi All
>
> I am new to labview and am doing a project where I need to get data
> from a Twincat soft PLC.
>
> What is the best way to do this? Common sense says use the OPC server
> with Twincat and OPC client with Labview, however, a colleague has
> used the Twincat OPC server and is not very complimentary as it is
> very difficult to set up.
>
> I have read a post about a Twincat ADSOCX (presumably an ActiveX). Has
> anyone used it and how difficult to use is it in Labview.
>
> Or can anyone suggest another way?
>
> Thanks in advance
>
> Paul Edwards
> Cougar Automation Ltd.
