Tracking method of hot rolling basic automation control data security timeliness

Abstract

The invention provides a tracking method of hot rolling basic automation control data security timeliness, and the method is used for transmitting steel strip information of production completion to a local database accurately in real time and transmitting the steel strip information to a remote database in the Ethernet synchronously. The technical scheme of the invention is as follows: a data acquisition device is equipped with dual network cards; one of the network cards is connected with a memory mapped network and the network card and the memory mapped network are set as a network section; the other network card is connected with a third layer of Ethernet and the network card is set as a three-layer Ethernet section; an acquisition program in the data acquisition device establishes an external variable of Profibus; the external variable corresponds to a PLC (Programmable Logic Controller) unit address, in such a way, the data acquisition program shares one same memory address; data of finished products in the PLC memory can be stored into the local database through a memory mapped network data acquisition program; lost data can be found from the local database by using a communication interrupt data retransmission mechanism; the lost data can be added into a temporary memory; and a retransmission program is triggered manually till the data is transmitted into the remote database safely.

Description

technical field [0001] The invention relates to a tracking method for hot-rolling basic automation control data safety and timeliness, which is used to accurately transmit the information of steel coils after production to a local database in real time and synchronously to a remote database on an Ethernet, and belongs to the technical field of metallurgical automatic control. Background technique [0002] In the production of hot-rolled strip steel in the metallurgical industry, the basic automation control information often needs to be transmitted to the remote database on the Ethernet in real time and accurately. For data congestion caused by virus transmission, broadcast storms, etc., take measures such as dividing the first-level industrial fieldbus network and the third-level Ethernet into different network segments, and adding firewalls, ACLs, and routers in the middle; During the process, the phenomenon of data loss is caused, resulting in data tracking confusion, dat...

AI Technical Summary

Problems solved by technology

[0002] In the production of hot-rolled strip steel in the metallurgical industry, the basic automation control information often needs to be transmitted to the remote database on the Ethernet in real time and accurately. For data congestion caused by virus transmission, broadcast storms, etc., take measures such as dividing the first-level industrial fieldbus network and the third-level Ethernet into different network segments, and adding firewalls, ACLs, and routers in the middle; Data loss during the process, resulting in data tracking confusion, data misalignment and other problems

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