Human Machine Interface (HMI) is a user interface in a manufacturing or process control system.
It includes the electronics required to signal and control the state of industrial automation equipment It provides a graphic based visualization of an industrial control and monitoring system. A user may take necessary action upon circumstances. NWL will combine PLC and HMI to monitor & control site equipments. If customer wants to link our power supply with peripheral equipments, then we recommend combination of PLC & HMI. If customer wants to control power supply only, then we recommend just the HMI.