HMI items give countless normally utilized gadget
Can the communication-enabled device be connected to the HMI product? It usually holds true. Since the general HMI items give countless normally utilized gadget correspondence drivers to look over. As long as the communication driver for the connected device is selected in the SCADA software of the HMI products, the communication connection between the HMI and the device can typically be completed. The user can inform the HMI product manufacturer of the communication port type and protocol content of the device to be connected and request that the manufacturer compile the communication driver for the device if there is no communication driver to be connected with the device in the SCADA software of the HMI product. Q6: Does HMI only use a standard serial communication interface to connect to devices? Generally speaking The interface capability of HMI products is getting stronger and stronger as computer technology and digital circuit technology advance. Some HMI products have data interfaces like network interface, parallel interface, and USB interface, which can be connected to industrial control devices with the same interfaces to realize human-machine interaction of devices. These data interfaces are in addition to the conventional serial communication interfaces (RS232, RS422/RS485). Q7: Can a touch-screen PC complete the HMI function by communicating directly with a PLC? Sure. To make the PC a real HMI product, it is critical that the corresponding HMI software be compiled. Q8: What is the HMI trend? The functional gradation of future HMI products will become less and less necessary as digital circuit technology and computer technology advance, and the functions of HMI will become increasingly numerous. The color display on HMI products with screens larger than 5.7 inches will have a longer service life. Because of the diminished expense of PC equipment, tablet PC will be taken as the top of the line results of HMI equipment. The future development direction of HMI products is as a result of these products’ significant advantages in processor speed, storage capacity, communication interface types and quantities, networking capabilities, and software resource sharing. Obviously, elements of little estimated HMI items with show size under 5.7 inches are additionally upgraded, (for example, adding IO capabilities), as well as their size and cost, so they will be generally utilized in HMI uses of little mechanical gadgets.