Monitoring secondary subtransactions that are not in the PTC state

If a secondary subtransaction that is not in the PTC state has not received any further message form its primary subtransaction within a time period determined by PP CHCKTIME, the UDS-D task queries the corresponding UDS-D task of the primary subtransaction‘s configuration to check whether the primary subtransaction involved still exists. If it does not, the secondary subtransaction is rolled back. If the UDS-D task of the primary subtransaction is not accessible, the secondary subtransaction is retained.