S7Plus Driver
The WinCC OA S7Plus driver uses the Siemens communication library IOMS and is meant for the communication with Siemens S7 PLCs.
The driver can communicate with S7-1200, S7-1500, S7-1500 Software Controller and ET200SP devices and provides the following functionality:
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Sending data to the PLC
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Polling data from the PLC
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Receiving unsolicited data from the PLC via subscriptions
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Time synchronization of WinCC OA and S7 PLC
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Statistical evaluation (e.g. reads and writes per second, etc.)
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Safe connection via S7DOS / PC Identifier
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Support of all access levels (from "no protection" to "full protection")
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Optimized data access