Soft signal test terminal block device

Abstract

The invention relates to a soft signal test terminal-row device. The soft signal test terminal-row device comprises a single chip microcomputer, a USB ( Universal Serial Bus) to serial interface chip and a USB interface and is characterized in that the single chip microcomputer is connected with at least two soft signal LED displays and at least two message reproduction operating circuits; each message reproduction operating circuit comprises a current-limiting resistor, an LED and a button dual switch which are connected; the combination of the soft signal LED displays and the message reproduction operating circuits takes the shape of a terminal row and is in a matrix arrangement. The soft signal test row device provided by the invention is applicable to soft signal debugging, has the functions of both signal LED indicator lights and signal message reproduction, can play the visual-boundary role of a secondary cable terminal row during debugging, is smaller than the secondary cable terminal row in size, can be shared by a number of devices, is higher in safety, simpler in structure, more reliable in operation and lower in power consumption.

Description

technical field [0001] The invention relates to a network signal debugging device, in particular to a soft signal test terminal block. Background technique [0002] In the power grid automation system, many signal transmissions between different devices or between the plant station and the master station are carried out through serial port messages or network messages, and the signals transmitted by communication protocol messages are usually called soft signals. At present, the usual practice of point-to-point debugging of soft signals is to test the two parties to first capture the communication message, and then use the corresponding communication protocol analysis tool to perform message translation or manual translation to confirm the correctness of the signal. Due to the lack of test intuitiveness of the secondary circuit terminal row in the debugging process, the debugging efficiency is low, the probability of errors is high, and there are many hidden dangers. Especia...

AI Technical Summary

Problems solved by technology

Due to the lack of test intuitiveness of the secondary circuit terminal row in the debugging process, the debugging efficiency is low, the probability of errors is high, and there are many hidden dangers. Especially in the one-to-multipoint test, the signal source device needs to repeatedly simulate actions to To generate the required message, in order to complete the acceptance of the signal, the operation and maintenance personnel often need to understand the message analysis methods of 101, 103, and 104 communication protocols, and the protection device needs to inject fault current into the external tester for simulation test In order to generate the signal message of "protection exit action", it needs to be repeated many times to complete the verification of the correctness of information transmission of each node, and the test period is long

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