I have half of our factory controlled by an S7-400 PLC connected to a WinCC server and clients via ethernet, the other half of the factory is controlled by a Modicon Quantum PLC. My question is, can I buy an ethernet adaptor for the Quantum and connect it to the WinCC ethernet network along with the S7 and have one project control the whole factory? If so, how would I achieve this?

Thanks in advance for your replies.

cjclarke @ blueyonder. co. uk

 

You would need a Modicon Quantum NOE module, takes one slot and gives you Ethernet connectivity. From there, you would need a ModbusTCP communications dataserver for WinCC so that WinCC could access the controller - you should be able to use any one of many ModbusTCP OPC servers.

 

I use OFS2.55 OPC Server to connect with WinCC and Quantum PLC. But my question is, for instance when the "Uint" datatype of a variable in Concept 2.6 is tansferred into WinCC project through OFS OPC Server, it is changed into "Int" datatype in WinCC project. The same as "WORD", why?

Thanks for your reply.

liuyt @ dhidcw. com