Web Scada - Web Server

There is two main way to access WinTr Scada Tags remotely. Opc Server and SQL Server. This access can be from the local computer or remote computer or over an internet. With WinTr's Opc Client and SQL Server Services other WinTr stations or the softwares which can use these services can communicate. Here we will try the explain ohw to reach WinTr variables via Internet Explorer browser.

In many automation application administrators want to watch process datas remotely. This can be made by creating many scada stations.Of course buying many scada software would be very expensive. Best way is moving process datas to the Intranet or Internet environment. Thus whitout paying extra price all users can access to data via browsers in order to watch or modify datas.

WinTr doesn't have to located at the hosting server. It can be locate any computer that server can reach.WinTr reads all the Tags from the first line of the database table which are selected as Sql Inp/out and updates them If their values change. You need to do is design a web page which can perform a read and write operation at the first line of the that Tag's column. You can reach historical datas with the same way as well. You can download our demo which performs this operations and monitors real time and historical datas on the chart. You can find the instructions to give such service by here:

Open the project named Example Project. The database hasn't been created yet. Click Save As and save. Database will be created.
Now we must configure computer as web server.
Go to Control Panel>Add Remove Program> Add/Remove Windows Component Select the check box beside the Internet Information Services(IIS) from this window. Click next and set up IIS. This may require Windows CD.
Go to Control Panel>Administrative Tools> Data Sources(ODBC) Click System DSN tab, click Add. Select SQL Server at the bottom of the list Click Finish.
Name: veri Server: COMPUTERNAME\\WINTR Check With SQL server authentication using a Login ID and Password entered by the user. Check Connect to SQL server to obtain default settings for the additional configuration options. Login ID: sa Password:12341234 Leave other settings default.
Run the Internet Explorer navigate this adress: localhost//localstart.asp. If you see IIS welcome page then you have succesfully configured you computer as a web server.
Copy the global.asa file which located inside the zip package you have downloadad from here to your C:\Inetpub\wwwroot\ folder.
Copy the other files inside the package to your C:\Inetpub\wwwroot\
Now you navigate localhost//demo_htm/demo.htm You will see the web page created for the demonstration of the monitoring and modifying datas. You can test data communication by starting WinTr.

Note: Check the database name from he WinTr Control Panel. The name must be Example Project. If you save as project more rthan once this name will change. Such situation you must change database names inside the "C:\Inetpub\wwwroot\demo_htm\tag.asp" and "C:\Inetpub\wwwroot\demo_htm\tag_oku.asp" files.