| Metric | KepserverEX (Single High-end Server) | Kepserver Enterprise (Two Mid-range Servers) | | :--- | :--- | :--- | | Max Sustained Tag Updates/sec | 250,000 | 400,000 (spread across pair) | | Failover Time (detection to recovery) | N/A (manual) | 3–8 seconds | | Data Loss on Failover | All in-memory values | 0 (zero) | | Alarm ACK persistence | No | Yes | | CPU Overhead for Redundancy | 0% | +15–20% on standby node | | Network Utilization (extra) | 0 Mbps | +30% (due to mirroring) |
At first glance, they look identical. Both use the same user interface (the renowned Kepware Configuration API). Both support the vast library of plug-in "drivers" (ranging from Allen-Bradley to Siemens to Modbus). Yet, they serve fundamentally different markets and architectural needs. kepserver enterprise vs kepserverex
This article will dissect the two products in granular detail—covering architecture, scalability, high availability (HA), pricing models, and use cases—to help you decide which engine should power your next industrial data project. What is KepserverEX? KepserverEX (Version 6.x and later) is the industry workhorse. It is a single-server, monolithic OPC server designed for machine-to-machine (M2M) communication at the edge or in a small-to-medium control room. | Metric | KepserverEX (Single High-end Server) |