Read Tag from another iFix server

Is there a simple way that an iFix 5.5 server can read the value of a tag in another ifix 5.1 server.

The iFix 5.1 server is running stable and I don't really want to alter anything on it. I have a new ifix 5.5 server that I am using to gather electric consumption from various parts of plant so is not critical to the running of the plant and therefore I am happy to play around with it. This server also stores its data to mySQL for long term storage.
What I want to do is read a tag from another iFix server, into a tag on the new database which I can then use to display and store some process data along with the energy consumption figures, in this case a pressure signal for some compressors.
The iFix 5.1 server with the tag already in place has a direct serial connection to the plant I/O so I can't replicate this on the new server.

Thanks in anticipation...