Control system and control method for steel tube length measuring, weighing and code spraying equipment

Abstract

The invention discloses a control system and a control method for steel tube length measuring, weighing and code spraying equipment. The system comprises a level-2 server, an industrial personal computer, a programmable logic controller (PLC), a weighing instrument, a code spraying machine and a printer, wherein the industrial personal computer is connected with the PLC in a Profibus DP bus mode; the PLC is connected with the weighing instrument in the Profibus DP bus mode; and the industrial personal computer is provided with control software of which the functions can be developed and extended by a client. The method comprises the following steps of: reading information in real time, setting system parameters, migrating codes, counting, storing and performing line printing in real time, and printing a report. The system reduces serial communication of the industrial personal computer, equivalently, a load of the industrial control personal computer is reduced, so that the stability and the communication rate of the system are improved; and the software adopts VB and PB programming, so that the software is renewable and the functions can be extended.

Description

technical field [0001] The invention relates to a steel pipe length measuring, weighing and coding equipment, in particular to a steel pipe length measuring, weighing and coding equipment for data collection, storage, information transmission and data query of the steel pipe length measuring, weighing and coding equipment control system and its control method. Background technique [0002] At present, the length measurement, weighing and coding equipment of steel pipes in steel pipe factories are mainly completed by programmable logic controller PLC, weighing instrument, inkjet printer, industrial computer and configuration software, weighing instrument and inkjet printer All adopt the serial port communication mode to communicate with the industrial computer. Since the length is read by the programmable controller PLC, the software that can be combined with the programmable controller PLC is mainly the configuration software, so the configuration software can only be used ...

AI Technical Summary

Problems solved by technology

[0003] 1. The serial communication function of the weighing instrument and the inkjet printer needs to be provided by the industrial control software manufacturer, and it is not very convenient to develop it by ourselves;

[0004] 2. Data query and report printing do not allow people to do what they want, and they have certain limitations in whatever style they want;

[0005] 3. It is not very convenient to implement the real-time line printing function

Images