Info require about FIX HMI Software

"Fix" was an old HMI product sold by Intellution, who was subsequently bought by GE in 2002. So if what you have does not say GE on it, it is older than 2002 and not likely OPC compliant.

OPC

try checking with http://www.opcfoundation.org/ if you can't find out any other way.

OPC DA has been in use since the mid '90's and there is some chance that an old Fix version might be an OPC client.

I have a recollection of helping a client setup his then-dated version of Fix in about 2003 or 2004 (?) and it was running as an OPC client.

I can't recall where the OPC setup in Fix was, but poking around the help files will probably lead to some reference to OPC the version had any OPC capability.