During every connection establishment the cobas pro sends the instrument status with a ESU^U01^ESU_U01 to the host. But currently the driver is also requesting during every connection establishment the instrument status again by issuing a ESR^U02^ESR_U02 message. This causes warnings on the user interface of cobas pro because the messages start to get out of order. In addition cobas pro is sending the ESU^U01^ESU_U01 everytime the instrument status changes.