How to read tags from OPC serwer by LabWindows?

[prepond]

Hi,

I have RSLinx installed on my computer. When I run an example OPCClient from help in LabWindwos there is no problem to observe actuall value. But this example is not very clear for me... Can somebody write here a code for this? A simple code wich is reading data from one tag and putting this data to String box. Please help.

Thanks.

[Doiron]

Hello prepond,

You have a few options here. If you take a look at the code in the example you can see that "theValue" is where the variable is being stored to with DS_GetDataValue and then plotted. You could simply use a string box and set the value to "theValue" immediately afterwards.

A second and easier way would be to put down a string control, right click and select "edit control" then choose the "datasocket binding" option. Enable binding and choose the server and you will see the value update automatically.