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Automatic control system accessed to automatic heteroid controller and application thereof

An automatic control and controller technology, applied in transmission systems, comprehensive factory control, comprehensive factory control, etc., can solve the problem of insufficient number of equipment addresses, and achieve the effect of saving construction costs and reducing management difficulty.

Inactive Publication Date: 2009-12-02
张建华 +2
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention aims at overcoming the deficiencies of the above-mentioned prior art, and provides an automatic control system for accessing automatic heterogeneous controllers, which solves the problem of insufficient number of device addresses in the same Modbus communication network

Method used

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  • Automatic control system accessed to automatic heteroid controller and application thereof

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Embodiment Construction

[0014] Specific embodiments of the present invention will be described in detail below.

[0015] The present invention relates to an automatic control system for accessing automatic heterogeneous controllers, which is characterized in that the control system includes a heterogeneous controller terminal and a central control room, and the heterogeneous controller terminal is provided with a client based on the OPC protocol terminal driver, a communication channel is provided between the heterogeneous controller terminal and the central control room, the heterogeneous controller terminal is provided with an interface for connecting with the communication channel, and the heterogeneous The data communication between the chemical controller terminal and the central control room is a Modbus protocol, and the Modbus protocol is a Modbus protocol extension, and the Modbus protocol is a 16-bit device address.

[0016] When the 8-bit device address controller terminal and the 16-bit de...

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Abstract

The invention relates to an automatic control system accessed to an automatic isomerous controller. The automatic control system is characterized by comprising an isomerous controller terminal and a central control room, wherein the isomerous controller terminal is provided with a client driver based on an OPC agreement, a communication channel is arranged between the isomerous controller terminal and the central control room, the isomerous controller terminal is provided with an interface which is connected with the communication channel, the data communication of the isomerous controller terminal and the central control room is carried out as an Modbus agreement which is Modbus agreement expansion, and 16 bit device addresses are arranged in the Modbus agreement. The system solves the problem of insufficient quantity of the device addresses in the same Modbus communication network and realizes that isomerous controllers supplied by different manufacturers carry out data communication with the central control room by the same communication channel. The invention also relates to the application of the automatic control system in oilfield automation.

Description

technical field [0001] The invention relates to the field of industrial control, in particular to an automatic control system connected to an automatic heterogeneous controller and its application. Background technique [0002] In various industrial control fields, especially in oilfield operations, it is often necessary to use heterogeneous controllers provided by different controller manufacturers to connect to the same control system in order to achieve centralized and unified monitoring. [0003] At present, the use of heterogeneous controllers in automation control systems mainly adopts the following two methods: [0004] The first method: relational database integration. The automation control systems built by heterogeneous controllers provided by different manufacturers are self-contained and independent of each other, and the data collected by each automation control system enters the same relational database. The characteristics of the automation system built by t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418H04L29/06
CPCY02P90/02
Inventor 张建华蒋能记韩力
Owner 张建华
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