S7 Driver - WinCC OA s7 driver Last error -1048566 - LOG file PLC 1 of 50; ID del evento: 16# 02:4427

[MrKintaro]

Hi,

we have a strange error with a PLC 1200 from siemens.

Connected trough s7 - TIA Symbolic.

Every 6:30 - 7 hours the plc is disconnected and in the PLC log we get:

1 of 50; Event ID: 16# 02:4427
Security information: System initiated session termination
SessionID 0-24
PLC1
IPAddr: 0.0.0.0
Incoming event
17/04/2018 15:11:39.967

and in the Driver Information
LAST Error -1048566

The error -1048566 is not in the manual and the PLC error is not really documented and we have not found something relevan online.

Do you have any IDEA?

[tmalone]

maybe not a good answer... but, is there some sort of demo license on the TIA/S71200? 6 hours is pretty demo common license duration. The message might be saying the security certificate expired?

[MrKintaro]

It is not a license problem.

[kilianvp]

S7 Plus Driver?

[MrKintaro]

There is no solution, we have to change to normal address. Symbolic is the problem