Due to the 3rd control device does not provide OPC driver , but just
provide TCP/IP communication API , I'd like to know if can use Lookout
to create the TCP connection with the device ?
Yes, using the IPASCII Object, assuming the API is simple enough.
-Khalid
PS: And if the API is a little involved, and you have the resources (especially fluent with C++), you can use the Object Developer's Toolkit and develop your own CBX (i.e., driver Object) for this device.