Article - CS439075
Upgrading S7-1500 PLCs to firmware version 4 causes the Siemens S7 Plus Ethernet driver communications to fail with error "Unable to generate a tag database for device. Error code = 0xFFFA0196" in PTC Kepware Products
Modified: 12-Sep-2025
Applies To
- Kepware Server (formerly KEPServerEX) 6.15 to 6.17
- ThingWorx Kepware Server (legacy) 6.15 to 6.17
Description
- Upgrading S7-1500 PLCs to firmware version 4 causes the Siemens S7 Plus Ethernet driver communications to fail
- Error in event log:
- Unable to generate a tag database for device. Error code = 0xFFFA0196
- Patch for Siemens FW V4 (Siemens Plus Suite S7-1500 Controller)
- Upgraded the firmware on siemens 1515F-2 PN PLC and comms stopped working
This is a printer-friendly version of Article 439075 and may be out of date. For the latest version click CS439075