Strip steel hot galvanizing production process data high-speed acquisition method

Abstract

A strip steel hot galvanizing production process data high-speed acquisition method includes the following steps: first a strip steel hot galvanizing production process data acquisition value range is set, then a PLC stores a process value acquired in each cycle period in a DB having a fixed format in a fixed sequence, when a set number is reached, in a PLC program, a system function block SFB37 is called to actively send data block data to WinCC, in WinCC a corresponding DLL is called to disassemble data, and the data are stored to an SQL database in a time sequence. At the same time, human-computer interface programming is performed in WinCC and acquired data are displayed. The s trip steel hot galvanizing production process data high-speed acquisition method provided by the invention is realized under existing basic software and hardware conditions of a hot galvanizing production line. The highest configuration can be 1ms acquisition period according to the need. Real-time control curve display is provided, and the acquired data are archived and stored in the SQL database for on-line monitoring and historical data analysis by production technicians, thereby providing technical support for improving strip steel hot galvanizing quality.

Description

technical field [0001] The invention relates to the field of automation applications, in particular to a method for high-speed data collection of strip steel hot-dip galvanizing production process. Background technique [0002] Data acquisition is a method of visually analyzing data. In the field of industrial control, through professional analysis of the collected data, it is used for technical monitoring of the production process, optimization of control parameters, and improvement of product quality in the production line. At the same time, it also provides data support for the generation of data reports and information integration systems such as production decision-making systems, ERP, and MES. [0003] Cold-rolled hot-dip galvanized coil has the characteristics of strong corrosion resistance, good surface quality, good for deep processing, economical and practical, etc. However, the production of high-quality hot-dip galvanized sheet is a systematic project, and the r...

AI Technical Summary

Problems solved by technology

Since the data of the hot-dip galvanizing production process comes from on-site instrumentation equipment, and the PLC control program can complete one data acquisition in each scan cycle, the scan cycle is generally from a few milliseconds to tens of milliseconds, and the acquisition cycle of on-site monitoring WinCC archive data is above 500ms , the speed mismatch makes high-speed acquisition a bottleneck, especially for accurate mass analysis.

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