HMI is the abbreviation of Human Machine Interface, that is, "human-machine interface", also called human-machine interface. To effectively control equipment and make decisions based on machine feedback, people use human-machine interfaces (HMIs). The HMI can be a simple display mounted directly on a machine for factory automation, or it can be a multi-touch display panel that controls an entire production line.
The composition of HMI man-machine interface:
Human-machine interface products are composed of hardware and software. The hardware part includes processor, display unit, input unit, communication interface, data storage unit, etc. The performance of the processor determines the performance of HMI products and is the core of HMI. unit.
According to the different product grades of HMI, the processor can choose 8-bit, 16-bit and 32-bit processors respectively. HMI software is generally divided into two parts, namely the system software running in the HMI hardware and the screen configuration software running under the Windows operating system of the PC. Users must first use the HMI screen configuration software to create "project files", and then download the compiled "project files" to the HMI processor through the serial communication port of the PC and the HMI product.
Basic functions and selection indicators of HMI man-machine interface products:
1) Display of equipment working status;
2) Data, text input operation, print output;
3) Production formula storage, equipment production data record;
4) Simple logical and numerical operations;
5) Can be connected to a variety of industrial control equipment networking.