Dear All, We have AW70 connected to nodebus through NCNI/RCNI. The purpose of AW70 is just as OPC server. On Nodebus there is AW51F on version 7.1.1 which is unix based. On OPC server we frequently have data problems and normally we have to stop the OPC server from "services" and then start it. The data then starts coming. Can anyone suggest what to look for in troubleshooting this. AIM*AT OPC Server version is 3.2.0.15. We are using Windows XP service pack 1 as the operating system of AW70. Regards, Kashif Ijaz INTECH Process Automation _________________________________________________________________ Connect to the next generation of MSN Messenger http://imagine-msn.com/messenger/launch80/default.aspx?locale=en-us&source=wlmailtagline _______________________________________________________________________ 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