Opc simatic net syntax6/15/2023 We have developed an OPC compliant reporting tool that allows monitoing, archiving and reporting (in Excel) of process data (NO CONTROL). The required settings for executing the Siemens’s system are basically the same ones used with S7-Functions. Then Simatic Net can work as an OPC Server, providing data to the OPC client, so that data can be accessed and handled properly by the system. VC++ is not advisable beacuse of the steep learning curve and the only advantage of coding in VC would be a better timing performance from the system as compared to VB or Excel. Via OPC: the supervisory (SCADA or E3) connects to Siemens software via OPC interface. Again it depends on your application requirements. Going for Excel will be an economical option but with Visual Basic you will have greater flebiluity in designing screens,archiving, reporting etc. If your system is very simple (no graphics), control and monitoring with just text boxes,list boxes, command buttons etc., then you may even write it in VB/VC++/Excel. With WinCC you get lots of features like Alarms,Archiving,Redundancy,Trending etc. Pro-toolPRo may suffice for small systems (limited functionality) otherwise u will need WinCC. Which one to use out of this again depends on the size of project. If you are looking for Control of the plant through a HMI with graphic screens etc. ![]() It all depends on what kind of monitoring and control you are looking for.
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