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Hi,
1. I have had customers using Applicom cards and OPC Servers without much problem.. overall, they're pretty good.
2. For OPC in LabVIEW, LabVIEW Datalogging & Supervisory Control (LVDSC) module is the way to go! LVDSC is an add-on module which you can install on top of your LabVIEW. It provides native (non-datasocket) OPC support. In addition, it also provides features typically required by a datlogging and supervisory control application, like historical logging and trending, alarming, security, etc. Check it out:
http://sine.ni.com/apps/we/nioc.vp?cid=10418〈=US
Hope this helps.
Rgds,
Khalid 🙂
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