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.
Plug one end of network cable into the Ethernet port on your DSL or cable modem. Plug the other end into the port labeled WAN on the back of your Trendnet router. Connect the second network cable to your computer's Ethernet port and any of the LAN ports on the back of the router. These ports are labeled 1 through 4.In Windows XP control panel, open Network Connections.. In Vista, open the Network & Sharing Center..onnect the second network cable to your computer's Ethernet port and any of the LAN ports on the back of the router. These ports are labeled 1 through 4. In Windows XP control panel, open Network Connections.. In Vista, open the Network & Sharing Center..