Can SCADA work with existing PLCs?

Answers from the sources

  1. Merobix

    “Yes. SCADA systems are designed to communicate with existing PLCs and RTUs using standard industrial protocols like Modbus, OPC-UA, and DNP3. You generally do not need to replace existing field hardware - the SCADA system reads data from what you already have installed.”

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Published
2026-10-22
Modified
2026-10-22
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revision Q139685211:content:dcc26f10ef10425e

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