Emerson Exchange 365

The IP addresses that should go to the remote network settings are the ones from the time source, which in your case would be the GPS time server (just keep in mind that if the time servers are routed in a different network level/area, you might need to configure routing and firewall settings accordingly). The NTP.org recommends (I'd even say that this is more of a requirement for security reasons) that systems should have multiple sources of time, and we can deal with two sources in DeltaV through the remote network - in your case, and as you already mentioned, the backup field will be left blank.

In BoL, the details around time synchronization are related to when the time servers are connected to the DeltaV Area Control Network to enable sequence of events within DeltaV. Sections: "System Time" and "Setting Up a Network Time Server" are good examples and available in v12.3.1 BoL.

There are two additional KBAs that are more specific in these areas that might be able to address your questions: KBAs # NK-1600-0234 and NK-1600-0238. They are specific about GPS Time Servers we test and support from an integration point of view, but will serve as a reference for the topics you are alluding to here.