A new technical note has been posted on www.mynah.com. Click here to view DeltaV Virtual IO Module Network Ports.Tech Note Summary: The Virtual IO Module (VIM) provides intuitive network setup. However, on networks where a Network Firewall blocks certain Network ports, the communications suffer. This tech note has a list of exact port numbers that need to be opened on firewalled networks.As always, any questions or comments, please post a reply!