Article - CS292760
Write requests to device fail randomly in PTC Kepware Products
Modified: 21-Aug-2025
Applies To
- ThingWorx Kepware Server (legacy) 8.0 N/A to 6.18
- Kepware Server (formerly KEPServerEX) 5.20.396.0 to 6.18
Description
- Write requests to device fail randomly in KEPServerEX / ThingWorx Kepware Server
- Failed tag writes coming from OPC UA / DA client
- Some values are not been written to their destination
- The user is experiencing an issue where PI tag values written from Kepware back to the PLC appear out of order, causing disruptions to downstream equipment due to the sequence of data received by the Kepware OPC Server
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