The advantages of controlling the movement of a machine or conveyor by a frequency inverter, range from efficiency in energy consumption, to the speed and rotation control, allowing to the operator more control in the final application of the machine.

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Through a Profinet communication, the PLC can monitor and control several frequency inverters in the same network, orchestrating different sections of the production to meet a predetermined objective.

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For this application of filling and emptying a water tank, a G120D frequency inverter is connected to an S7-400 PLC through a Profinet network. On the other hand, the control stations are wired to a distributed I/O module ET200S.