User might just execute one transaction/program but STAD might display many entries for that single transaction/program  each entryis a dialog step in SAP term. How many dialog-steps are displayed under a transaction/program is related to program/transaction design and how that transaction is executed.
Connections of the types TCP, ISO-on-TCP, UDP, ISO and S7 connection are configured in the SIMATIC Manager in NetPro. These connections are configured in the same way in STEP 7 (TIA Portal). In STEP 7 (TIA Portal) the S7 connections have to be configured in the Devices and Networks editor, in the Network view.
configuration is required. If you have Exchange Server 2003, 2007, or 2010 but your company is new to Exchange ActiveSync, review the following steps. Exchange ActiveSync Setup Network configuration overview â¢ Check to ensure port 443 is open on the firewall. If your company allows Outlook Web Access, port 443 is most likely already open. â¢ On the Front-End Server, verify that a server certificate is installed and enable SSL for the Exchange ActiveSync virtual directory in IIS.