Kepserver Enterprise Vs Kepserverex -

[ HMI / SCADA ] 
       |
[ KepserverEX A ] --- (No data sync) --- [ KepserverEX B ]
       |
[ PLC Network ]

Result: Manual or "bumpless" failover is not guaranteed.

This is where most buyers get confused. Kepware’s licensing model is a la carte, and both EX and Enterprise have "hidden" costs.

[ HMI / SCADA / MES ]
       |
[ Kepserver Enterprise Console (Management)]
       |
   +---+---+
   |       |
[ Active ] [ Standby ] --- (Live data mirroring)
   |       |
   +---+---+
       |
[ SQL Database (Config + State) ]
       |
[ PLCs / RTUs ]

The "Split Brain" prevention: Enterprise uses a voting mechanism and a quorum disk (or SQL witness) to ensure only one node becomes active at a time. kepserver enterprise vs kepserverex

In standard EX, when you switch to a backup server:

Enterprise solution: The standby node maintains live values. Clients reconnect instantly with the correct state. An operator would not notice a failover unless they were watching the console. [ HMI / SCADA ] | [ KepserverEX

Kepserver Enterprise is distributed, high-availability data streaming platform. It is not a different server, but rather a constellation of KepserverEX instances managed as a single logical device.

Key characteristics:

Crucial insight: Under the hood, Kepserver Enterprise is KepserverEX. The "Enterprise" version adds a management layer (the Enterprise Console) and a persistence layer (the Configuration Database).