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Data management method and system based on soft PLC

A data management system and data management technology, applied in the field of data management methods and systems based on soft PLC, to achieve the effect of strong flexibility and improved flexibility

Pending Publication Date: 2022-07-08
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0004] After searching, the Chinese patent discloses a smart gateway data collection and testing method and device (CN201910490716.7), which uses Siemens STEP7 to program the PLC, supports a variety of data collection communication protocols, and realizes switching, analog, and pulse quantities. The test, but this method is limited to the configuration of Siemens equipment

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  • Data management method and system based on soft PLC
  • Data management method and system based on soft PLC
  • Data management method and system based on soft PLC

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Embodiment Construction

[0049] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0050] like figure 1 As shown, a data management method based on soft PLC includes the following steps:

[0051] (1) The plug-in management mechanism is embedded in the soft PLC, and communication modules of various bus types and user expansion function modules are loaded;

[0052] (2) Collect the data of the first type of fieldbus devices;

[0053] (3) According to the collected data type, the dat...

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Abstract

The invention discloses a data management method and system based on a soft PLC, and the method comprises the steps: enabling the soft PLC to be embedded with a plug-in management mechanism, and loading a communication module of a plurality of bus types and a user extension function module; collecting data of the first type of field bus equipment, and storing the data in a data dictionary in a classified manner; data to be processed is extracted from the data dictionary, after a data processing function is executed, an operation result is updated to the data dictionary or a self-defined global data storage area according to the attribute of the data operation result, and then the operation result is forwarded to a second-class bus data collection device or localized storage; and repeating the steps, acquiring the first type of bus data, processing and transferring a processing result to the second type of bus data collection device or storing the processing result in a local file. According to the method, expandability and operability of multi-bus data management are considered, and through a plug-in management mechanism and in combination with the programmable characteristics of a data dictionary and a soft PLC, the method better meets the full-process requirements of data acquisition, processing and distribution.

Description

technical field [0001] The invention belongs to the field of industrial automation, and more particularly, relates to a soft PLC-based data management method and system. Background technique [0002] With the development and expansion of the scale of the automation industry, the bus-type soft PLC is widely used in intelligent production lines, assembly, process control, motion control and other application scenarios. The popularization of the bus-type soft PLC has greatly liberated the productivity, improved the automation level, and reduced the labor cost. [0003] However, in the task of bus-type soft PLC, there are various industrial bus data acquisition requirements, as well as effective management and processing requirements for data, and how to easily integrate user expansion function packages. [0004] After retrieval, the Chinese patent discloses an intelligent gateway data acquisition and testing method and device (CN201910490716.7), which uses Siemens STEP7 to pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445G06F9/48G06F9/50
CPCG06F9/44526G06F9/4881G06F9/5016Y02P90/02
Inventor 杨建中吕晓凡朱冲王晓宇
Owner HUAZHONG UNIV OF SCI & TECH
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