Data exchange device for steel rolling process control system and WinCC interface, and communication method thereof

A rolling process and control system technology, applied in transmission systems, electrical digital data processing, electrical components, etc., can solve problems such as poor user experience, cumbersome configuration, low technical reliability and security, and achieve reliability and efficiency High, simple and convenient operation, the effect of increasing the system burden

Inactive Publication Date: 2014-03-26
张殿华 +6
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, most small and medium-sized rolling lines in China still use semi-automatic production methods. Only a few large-scale state-owned enterprise broadband steel rolling lines have imported advanced computer control systems from abroad, which can automatically roll steel. Most of the core parts of these imported systems, such as communication components, are It is provided to us in the form of "black box", without independent intellectual property rights
There are also some enterprises with process control systems that use DDE ...

Method used

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  • Data exchange device for steel rolling process control system and WinCC interface, and communication method thereof
  • Data exchange device for steel rolling process control system and WinCC interface, and communication method thereof
  • Data exchange device for steel rolling process control system and WinCC interface, and communication method thereof

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Embodiment 1

[0014] Embodiment 1: as Figure 1-2 As shown, a steel rolling process control system and WinCC interface data exchange device, including PLC1, process machine 2 using SOCKET communication mechanism, database machine 3 and at least two HMI4, the initial parameter output terminal of database machine 3 through The wire is electrically connected to the initial parameter input end of the process machine 2, and the first model setting data output end of the process machine 2 is electrically connected to the model setting data input end of the database machine 3 through the wire, and is used on the HMI4 The outer layer interface 5 for data exchange between SOCKET and process machine 2 and the inner layer interface 6 for reading and writing data in WinCC software in accordance with OPC technical specifications. The second model setting data output end of process machine 2 communicates with the outer layer of HMI4 through wires The second model setting data input end of the interface 5...

Embodiment 2

[0015] Embodiment 2: a kind of communication method using steel rolling process control system and WinCC interface data exchange device: its thread is the first thread that process machine 2 sends to HMI4 and the second thread that HMI4 sends to process machine 2; The flow of the thread is: first add the WinCC server at the beginning, then add the OPC group object, then add the data tag, then read the data tag, then establish a SOCKET client, then connect to the process machine server, send data when connected, and then receive the receipt After completion, reconnect when not connected to the process machine server; the process of the second thread is to first establish a SOCKET client, then bind the port, then monitor the client, and then accept the client connection request. When there is a client connection, After receiving the data, send a receipt, then add the WinCC server, then add the OPC group object, then add the data label, and then write to the WinCC interface to com...

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Abstract

The invention relates to the technical field of steel rolling auto-control, and in particular to a data exchange device for a steel rolling process control system and a WinCC interface, and a communication method thereof. The data exchange device comprises a PLC, a process machine with a network employing an SOCKET communication mechanism, a database machine and at least two HMIs, wherein the initial parameter output end of the database machine is electrically connected together with the initial parameter input end of the process machine by a conductive wire. The data exchange device disclosed by the invention is of a double-layer structure, and the inner layer establishes an OPC server at a human machine interface end by virtue of a multithread technology and based on an OPC protocol, so as to perform data reading-writing, and the outer layer establishes SOCKET communication with the process machine based on a TCP/IP protocol, in this way, a thread mutex mechanism is established to realize a parallel processing effect; the data exchange device is fast in transmission speed, high in reliability and efficiency, simple and convenient to operate, capable of completely meeting the working need of 7*24-hour line-rolling, and basically free from no increase of system burden.

Description

technical field [0001] The patent of the present invention relates to the technical field of steel rolling automatic control, specifically a steel rolling process control system and WinCC interface data exchange device and communication method thereof. Background technique [0002] With the continuous development of my country's steel rolling technology, domestic advanced rolling mills generally have a complete two-level control system, namely basic automation (L1) and process control system (L2). Among them, the human-machine interface system (HMI) of many users is developed using the WinCC software platform of Siemens Company. How to make the L2 and HMI carry out stable real-time data exchange is the primary problem that needs to be solved. [0003] At present, most small and medium-sized rolling lines in China still use semi-automatic production methods. Only a few large-scale state-owned enterprise broadband steel rolling lines have imported advanced computer control sys...

Claims

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Application Information

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IPC IPC(8): G06F13/40H04L29/06
Inventor 张殿华曹剑钊彭文李旭孙杰胡显国李影
Owner 张殿华
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