With the S7 -200 OPC server PC Access , you can create a connection between S7-200 and WinCC via OPC . Using the S7 -200 OPC server, you shouldincorporate symbols of STEP 7 Micro / WIN project. The S7- 200 PC AccessOPCServer can be coupled through the following types of connections for S7 -200requirements :• PPI via a PC / PPI cable (you can use any of these adapters )or USB / PPI ( : 6ES7 901- 3DB30 -0XA0)RS232/PPI or cable (Reference: 6ES7 901- 3CB30 -0XA0)RS232/PPI or cable (Reference: 6ES7 901- 3BF21 -0XA0)• WinCC• S7- 200 PC Access V1.0 (see compatibility software )http://support.automation.siemens.com/WW/view/es/19298708• MicroWin V.4.0• desktop computer , laptop or PG / PC with Windows 2000 or higher

procedure :1 . Set PG / PC depending on the type of communication to use ( PPIMPI) (for the year has been used PPI)2 - . Establish communication between the PC and the S7 -200 . change speedscommunication if necessary.3 - . Open the S7- 200 PC Access V1.0 .4 - Right click on MicroWin (because of the example) within the project S7 -200 PCAccess V1.0 and select New PLC .

5 -. Select a new item, the location name, address, type of data.6 - Drag the customer number created to test and simulate option release (test clientStatus). You can verify that communication has been established between theComputer and PLC S7-200 when the test client displays theword "good" can also be controlled by changing values in the inputPLC (in the case of the example shown)

7 - After checking the connection of the S7-200 with computerPC Access V1.0, proceed to open WinCC. Select Manage Tag (clickright) and Pilot OPC.CHN add.8 - Select OPC Groups (right click) and select System Settings.9. Wait a few seconds while the network load. Select <local>S7200.OPCServer.10. Click Browse Server. Check the read access and write options.11. Give click Next, open all subfolders and select the Test folder (thiswas created to start the access to PC configuration) and create a connection to S7200OPCServer

12. Select and open the Graphics Designer13. We pay an entry field - Output (I / O field) to simulate theinput behavior of the S7-200.14. Tag is added (Test) of the S7-200.

15. We simulate (Runtime) and the change of the state entries in the S7-200.

16. Communication has been established between S7-200 and WinCC