Free Omron Hostlink C20 OPC/DDE server for Tri-Plc
I did download it and tried it with excell, the data did come into excell , but it came in as Hex data. Excell has some functions to convert this in to decimal. But if thats a problem you can Buy Their latest and gratest OPC server that allows tag scaleing and alarm/Event status for 99 bucks. Thought you all might want to know this. here is the link.
http://www.webfaqtory.com/opcservers/index.html