i am using the tabula data stream potocoll for communication purposes between siemens plc and sql server 2019. the exchange of the pre login and login7 request and response packets are well done. after ther login i attemted to send rpc and sql batch request. in both ways the response determines a failure on the server side. the observation in whireshart indicates no invalid structure, therfore i am sure the messages are correct. if i send the sql batch with the statement
SELECT * FROM ln01000.dbo.AA_STATIONS within i get an error. of course, the statement was successfully tested in an sql query on the server. though the messages are so simply i recorded the follwing transfer by whireshark.
does someone has an answer or better a propper solution for me?
thank you very much.