For a success communique among wincc and the automation device that's the s7 2 hundred percent in our case, we need to configure channels, channel gadgets and connections:
Channels are specialised verbal exchange drivers. The channels permit the supply of manner values from the automation system to the technique tags. Wincc presents a variety of channels to connect one of a kind automation structures. In wincc, you could additionally use channels, thru which values are transferred to the automation machine from wincc. You'll manipulate the system via these channels.
The channels have exceptional channel units for the unique verbal exchange networks. This channel unit is then used to get admission to to a certain type of automation machine. A channel unit serves as an interface with exactly one underlying hardware driving force and consequently to precisely one conversation processor within the laptop.
In channel devices, you will configure connections to the numerous automation structures. Every connection describes the interface to an individual, defined automation machine. The facts trade will take location thru the connections in runtime.
In our case we used the OPC Channel and passed through the SIEMENS provided S7 200 PC Access software to configure our connections. This allows us to communicate with the automation system the same way we do from Step 7 MicroWin. Physical connections are made through the PC/PPI Cable.
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