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What is the difference between control and device in PROFINET communication?
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What is the difference between control and device in PROFINET communication?
In PROFINET IO communication, the two most common roles are control and device, also known as IO controller and IO device. IO controller is a control device, which connects one or more IO devices (field devices). The common IO controller is PLC, such as S7-300 and s7-1500 programmable controllers. IO device is a field device. The common IO device is distributed IO, such as et200mp PN device.
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