Configuration software and touch screen are relatively mature products on the market. The emergence of configuration software has not replaced the touch screen. The touch screen has the advantages of the touch screen, and the configuration software has the characteristics of the configuration software. Configuration software and touch screen both need to develop drivers for connected plc and other devices to read data and send data. Generally, computers and touch screens equipped with configuration software are called upper computers. Generally, the touch screen is connected to PLC (many of them can also communicate with inverters, servos, such as proface); general configuration software can be connected to various devices such as PLC, meters, smart modules, dcs, etc. or third-party software systems, due to installation On operating system platforms such as windows, the functions will be more powerful, such as real-time databases, etc., and it can also be combined with relational databases to perform some complex statistical analysis of data. Usually touch screens are used for local operation of stand-alone equipment, while configuration software is used for large projects, such as metallurgy, petrochemical, production lines, water treatment, etc., with many monitoring points, complex screens, and statistical analysis databases.
The configuration software has a variety of collection methods, mainly wired and wireless. The wired collection method is mainly divided into serial port and Ethernet. The collection devices of the serial port are mainly collected by polling. The more devices, the longer it takes to collect all the data. Ethernet collection is generally concurrent. The number of devices has little effect on the collection speed, and it has a certain relationship with the actual number of IO points collected by each device. The configuration software has a packaging mechanism for data collection. The more data, the more packets The more, the longer it will take to query all the data packets. For example, compared with a touch screen system, when collecting the same amount of data, the response speed of the configuration software is at the ms level. All configuration software collects data with delay. Depending on the situation at the scene, the delay is also different. The configuration software and the touch screen control PLC also compare with the touch screen system, and the speed is equivalent. Refer to the difference description above for the advantages of configuration software.
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