Article - CS292754
Configuration project performance optimization in PTC Kepware Products
Modified: 23-Oct-2025
Applies To
- ThingWorx Kepware Server (legacy) 8.0 to 6.18
- Kepware Server (formerly KEPServerEX) 5.20.396.0 to 6.18
Description
- Configuration project performance optimization in KEPServerEX / ThingWorx Kepware Server (KSE/TWIC formerly ThingWorx Industrial Connectivity)
- Values are coming back slowly
- Values that change in the PLC for some tags do not seem to be changing in the Kepware server
- Decrease the interval for asynchronous and synchronous write methods
- Tips to improve performance in Kepware
- Adding more sites to the system, polling data is taking a longer time
- User has several SNMP channels created in Kepware, some with 5, 10, or 30 devices, but on those with 30 devices, the reading becomes very slow and It changes every 7 seconds when it should change every 1 second
- With Toyopuc PC3/PC2 Ethernet driver, when a PLC device went offline, data reception from other PLCs on the same Channel was delayed by 40 seconds overall
- User having SEVERE latency issues (up to 3 minutes) with PLC tag data updates, for at least 1 of the devices connected
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