Article - CS281761
Receiving error "Attempt to add item '<item>' failed" when adding an I/O Register Tag dynamically for an Allen-Bradley SLC in KEPServerEX / ThingWorx Industrial Connectivity / ThingWorx Kepware Server
Modified: 17-Aug-2023
Applies To
- Kepware Server (formerly KEPServerEX) 5.20.396.0 to 6.14
- ThingWorx Kepware Server (legacy) 8.0 to 6.14
Description
- Receiving error Attempt to add item '<item>' failed when adding an I/O Register Tag dynamically
- When adding I/O registers to be read from a modular Allen-Bradley SLC, the connected client receives errors in the KEPServerEX Event Log
- If the client is an OPC client, it will receive error code 0xC0040007 - The item is no longer available in the server address space
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