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Modbus communication automatic test method of industrial control system

A technology for industrial control systems and automated testing, which is used in comprehensive factory control, software testing/debugging, and data exchange through path configuration. Achieve the effect of overcoming high technical requirements and efficient testing work

Pending Publication Date: 2022-07-12
ZHEJIANG SUPCON TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an automated testing method for Modbus communication of an industrial control system, which solves the problems of complicated and inefficient testing of the Modbus communication function test environment of the existing industrial control system. technical problem

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  • Modbus communication automatic test method of industrial control system
  • Modbus communication automatic test method of industrial control system
  • Modbus communication automatic test method of industrial control system

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Embodiment Construction

[0068] In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below with reference to the accompanying drawings and through specific embodiments.

[0069] For better understanding of the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be more clearly and thoroughly understood, and will fully convey the scope of the present invention to those skilled in the art.

[0070] see figure 1 , this embodiment provides a Modbus communication automatic test method of an industrial control system, the method is ...

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Abstract

The invention relates to a Modbus communication automatic test method of an industrial control system, and the method is applied to the Modbus communication automatic test system of the industrial control system. Obtaining a first test result according to a process of testing a read command of a Modbus client of the first industrial controller according to preset first test data sent by a user to the Modbus server module; and obtaining a second test result according to a process of testing a write command of the Modbus client of the first industrial controller according to the first bit number write value written by the user to the Modbus client, wherein the first industrial controller pre-downloads a configuration required for editing and testing the Modbus client in the controller configuration software.

Description

technical field [0001] The invention relates to the technical field of Modbus communication testing of industrial control systems, in particular to an automatic testing method of Modbus communication of industrial control systems. Background technique [0002] With the acceleration of the iteration speed of the industrial control system, the frequency of the Modbus communication function test is also increased. When the control system communicates with Modbus, it can have two roles of client and server. During communication, it includes four output types of data blocks: coil, discrete input, holding register and input register. The bit number that the controller needs to communicate includes BOOL, INT, UINT, SINT, USINT, DINT, UDINT, WORD, DEORD, REAL, LREAL and other data types. The data bit rules include word conversion, intra-word conversion, byte conversion and no conversion. All roles and data blocks need to be covered during testing. Type, bit number data type, data b...

Claims

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Application Information

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IPC IPC(8): G06F11/36H04L12/40
CPCG06F11/3684G06F11/3688H04L2012/40228Y02P90/02
Inventor 赵丽莉刘永斌郑志方陈耀方
Owner ZHEJIANG SUPCON TECH
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