Duc, Does the HWTYPE parameter of the ECB block help? It seems to deal with each FBM type differently, though it does leave things cloudy with migration modules. William C. Ricker FeedForward, Inc. Marietta, GA, USA wcricker@xxxxxxxxxxxxxxx 770-426-4422 _______________________________________________________________________ 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