Thanks Tim
No, definitively right addresses. It appears as though the Flexy does not allow broadcast messages to pass through. RSLinx ETH-IP and FactoryTalk Enterprise rely upon these for device discovery.
With RSLinx I have been able to configure the IP addresses in a standard ETH driver. With FT Enterprise (particularly ME transfer) I found I can actually set up a Panelview as a device in FTView Studio Communications Setup and this passes through to ME Transfer.
Is there a way to permit these broadcasts to pass through, particularly since the Flexy LAN port is on the network i.e. not routed? It would make life much easier and less of a trap for other players.
FWIW we also use a 22 bit subnet mask since our IO and HMI LANs sit on adjacent subnets.
Cheers
Bruce