I just wanted to bring this up again since I am trying to replace my CLAN modules with this new "fangled" ATS modules and mesh network. *History:* I have a "simple" two-node IA system with two AW51C's on each node. I have a P92 "AWXP" running OPC station software 7.x. *Problem: *You can't use the OPC AW to host the ATS modules as we were lead to believe. You have to add a real AW70 (P91 or P92) to host the ATS's. I just wanted everyone else to know this before they ordered ATS modules and switches. As usual, I had to learn it the hard way. Glen _______________________________________________________________________ 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