A method for testing a control system

Abstract

The invention provides a control system detecting method. According to the method, through detecting whether control software can correctly identify and process an input signal, and the detection of a control system is realized. An input signal mapping area is established and is used for storing an input signal. An output signal mapping signal is established and is used for storing an output signal. The control software of the control system obtains the signal from the input signal mapping area, a control output signal obtained after processing the signal by the control software is stored in the output signal mapping area. According to the method, under the premise of ensuring equipment safety, various field input signals can be conveniently and rapidly simulated, and whether the control software can correctly identify and process the input signals is detected so as to detect whether the control system satisfies the requirements of design and rectification.

Description

technical field [0001] The invention relates to the control field, in particular to a control system verification method. Background technique [0002] Such as figure 1 As shown, the workflow of the existing control system software is: directly refer to the input signal from the field in the control software, and the output control signal processed by the control software is directly transmitted to various output control modules, and the output control module controls each execution. institutions, in order to achieve the purpose of automatic control. The problem that this existing control system exists is as follows: [0003] When it is necessary to check whether the control software meets the design requirements, various on-site input signals must be artificially simulated. It is relatively easy to simulate signals with simple logical relationships, but it is difficult to simulate signals with complex logical relationships. For example, it is difficult to accurately sim...

AI Technical Summary

Problems solved by technology

It is relatively easy to simulate signals with simple logical relationships, but it is difficult to simulate signals with complex logical relationships

For example: the gradient change of a certain signal is difficult to accurately simulate, that is, it is difficult to check whether the gradient judgment and processing of the signal are correct

Moreover, in the process of simulating field signals, the control software will directly control the operation of the equipment. If there are hidden dangers in the control software, it may cause damage to the equipment and pose a safety hazard.

[0004] The most serious thing is that neither the supplier nor the demander can accurately verify whether the control software meets the design requirements

If there are hidden dangers in the control software, they will inevitably be exposed in actual use. At this time, it may cause incalculable losses to equipment and production; After modification, the modified control software also needs to be verified

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