OPC-UA data communication processing method

Abstract

The invention discloses an OPC-UA data communication processing method. An OPC-UA, which means an OPC unified architecture, is a new technology created by an OPC foundation, the OPC-UA is more secure,reliable and neutral, and is used to transmit raw data and preprocessed information from a manufacturing site to a production planning system or an enterprise resource planning system. The method applies the OPC-UA to the communication between a control system and field equipment; and compared with a traditional method of using the OPC to communicate with the equipment, since the OPC-UA is no longer based on a distributed component object model, but is based on a service-oriented architecture, more equipment can be connected. In addition, due to the addition of security authentication, all equipment information data can only be sent to authorized applications and authorized people. Therefore, by adopting the OPC-UA data communication processing method disclosed by the invention, the problems that the communication security of an industrial control system and the field equipment cannot be ensured and multiple types of equipment cannot be connected can be solved.

Description

technical field [0001] The invention relates to a data communication processing method, in particular to an OPC-UA-based data communication processing method used for communication between an industrial control system and a field device. Background technique [0002] In the automation control system, communication with field devices is very important. In the past, OPC was used to communicate with devices. Since OPC is based on the Distributed Component Object Model (DCOM), the types of devices that can be connected are limited and the configuration is more complicated. . In addition, the traditional way of data communication does not have security certification, which cannot guarantee the communication security of device data. Contents of the invention [0003] Aiming at the deficiencies such as low communication security and limited types of connected devices in the current technology, the technical problem to be solved by the present invention is to provide an OPC-UA-ba...

AI Technical Summary

Problems solved by technology

[0002] In the automation control system, communication with field devices is very important. In the past, OPC was used to communicate with devices. Since OPC is based on the Distributed Component Object Model (DCOM), the types of devices that can be connected are limited and the configuration is more complicated.

In addition, the traditional way of data communication does not have security certification, which cannot guarantee the communication security of device data

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