Last updated: Q3 2025.
Introduction: The Kepware Dilemma In the world of industrial automation and IIoT (Industrial Internet of Things), few names carry as much weight as Kepware . Acquired by PTC in 2016, Kepware has become the de facto standard for industrial connectivity, bridging the gap between proprietary PLCs, OPC servers, databases, and modern cloud platforms. kepserver enterprise vs kepserverex
However, for new users and even seasoned integrators, a persistent confusion remains: Last updated: Q3 2025
You cannot downgrade easily. Once you move to Enterprise, the configuration lives in SQL. Moving back to standalone EX requires manual export/import and loss of redundancy features. Part 9: Real-World Performance Data Based on benchmark tests from Kepware user groups and internal PTC documentation: However, for new users and even seasoned integrators,
| 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) |
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.