Event sequential recording test signal generator and test method thereof

Abstract

The invention provides a test method for SOE. An SOE test signal generator triggers each channel of a signal output submodule to generate and outputs test trigger signals to an SOE logging module of a system under test; the record of trigger events generated by the system under test is checked according to the record of the test trigger signalS; wherein, before testing, a user configures testing parameters on the SOE test signal generator; wherein, testing parameters comprises channel trigger sequence adopted by the test; after the test is started, the SOE test signal generator generates trigger signals of each channel according to the configured channel trigger sequence. In addition, the invention also provides the SOE test signal generator; when test objects are a plurality of SOE logging modules, the test can be carried out according to trigger sequences of different events under the condition that wiring sequence of the SOE logging module and the SOE test signal generator is not changed.

Description

technical field [0001] The invention relates to an SOE (Sequence of Event, sequence of events recording) test signal generator and a test method thereof. Background technique [0002] At present, many automatic control systems include SOE (Sequence of Event, sequence of events recording) recording module, which is used to record the interval sequence of abnormal event occurrence time, first event and chain occurrence events. The most important basis. With the popularization of DCS (Distributed Control System, discrete control system), more and more SOE functions are used, and people rely more and more on it. If the SOE module fails or the record is incorrect, it will directly affect the analysis and treatment of the cause of the failure or accident, and affect the decision-making and responsibility. As such an important function, it is very necessary to verify the accuracy of SOE recording module records during system maintenance. [0003] The SOE test signal generator is...

AI Technical Summary

Problems solved by technology

[0007] The present invention proposes an SOE test signal generator and a test method thereof, which are used to solve the problem that in the prior art, when the test object is a plurality of SOE recording modules, there are many requirements for connecting cables. If the event trigger sequence needs to be changed for testing, It is also necessary to change the connection sequence between each SOE recording module and the SOE test signal generator, or even disconnect the connection, which will bring inconvenience to the test

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