Never mind. I dug up an e-mail from Ted Jirik from 2003 that led me in the right direction. Sorry about that. Tim Lowell Control Systems Engineer ConocoPhillips Trainer Refinery (610) 364-8362 tim.c.lowell@xxxxxxxxxxxxxxxxxx _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave