Hi Stan, I've been running like that for a while. Two nodes connected together with NCNIs. Works a treat. Both side of the NCNIs have their own host. Two things you have to remember. NFD and CSA need to run on a 7.x host.=20 Cheers, Frits. -----Original Message----- From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]On Behalf Of stan Sent: Sunday, 4 September 2005 05:22 To: Foxboro List Subject: [foxboro] Cross node communication We are in the final phase of commisioning a Version 7.1.1 system on one unit. The architecture of this node is CP60's connected in classic Foxboro nes conected to redundant fiber switches, the W{'s and AW then connect back to the switches via fiber and RCNI's. We will be adding another unit soon, that neds to share some data with this node. The presnt plan is to add thsi new unit to the same node. I'm wondering if it wouldn't be better to make this 2nd unit a different node? If we did=20 this, what would our options for sharing control data between the 2 nodes be? In addition we in the long run will need to share some control data with an existing node that is a "classic nodebus" system that's at version 6.5 system, what are our options there? --=20 U.S. Encouraged by Vietnam Vote - Officials Cite 83% Turnout Despite Vietcong Terror=20 - New York Times 9/3/1967 =20 =20 _______________________________________________________________________ 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 =20 foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: = mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Djoin to unsubscribe: = mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Dleave =20 _______________________________________________________________________ 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