Road Traffic Signal Controller

Road Traffic Signal Controller Communication Protocol (instruction and Message Format) is used for on-line communication between road traffic signal controller and host computer, Traffic Flow Information Upload, Working Status Query and setting, and so on. The version of embedded software is V3.0. Data Frame: The frame structure includes four fields: frame start, data table, check code and frame end, defining compliance data table: Data table structure, data link, operation type and object identification compliance standard on-line procedure: Signal and upper computer on-line procedure compliance standard requirement on-line: signal sending online request instruction format compliance standard, the format of the on-line inquiry instruction sent by the signal machine conforms to the standard traffic flow information: The format of the traffic flow message uploaded by the signal machine conforms to the standard requirement the working state of the signal machine: The format of the reply message sent by the signal machine after receiving the inquiry instruction of the upper computer working state conforms to the standard requirement; The format of the active uploading message after the change of the working state of the semaphore conforms to the standard. The format of the responding message after the SEMAPHORE receives the inquiry instruction of the light state conforms to the standard When the color of the light changes, the format of the signal to send the message conforms to the standard. The current time: The format of the signal to send the reply message after receiving the current time query instruction conforms to the standard; The format of the response message after receiving the time setting instruction conforms to the standard. The semaphore group: The format of the Response Message after receiving the query instruction conforms to the standard; The format of the response message sent by the SEMAPHORE after receiving the setting instruction of the SEMAPHORE set shall conform to the standard phase: The format of the response message sent by the semaphore after receiving the phase inquiry instruction conforms to the standard phase; The format of the response message sent by the SEMAPHORE after receiving the phase setting instruction conforms to the standard，SIGNAL TIMING SCHEME: The format of the response message sent by the Semaphore after receiving the query instruction of the signal timing scheme conforms to the standard; The format of the reply message after receiving the signal timing scheme setting instruction conforms to the standard: The format of the reply message after receiving the scheme scheduling query instruction conforms to the standard; The format of the response message sent by the SEMAPHORE after receiving the scheduling plan instruction conforms to the standard working mode: The format of the response message sent by the semaphore after receiving the working mode query instruction conforms to the standard; The format of the reply message after receiving the working mode setting instruction conforms to the standard. The format of the reply message after receiving the fault inquiry instruction from the upper computer conforms to the standard The Format of the active upload message after the signal machine detects the fault conforms to the standard requirement the signal machine version: The format of the reply message after the signal machine receives the signal machine version inquiry instruction conforms to the standard requirement; the signal, machine version change is to send a message format in line with the standard requirement feature parameter version: Signal received the feature parameter version of the Query Command sent response message format in line with the standard requirements; The format of the reply message after receiving the set instruction of the characteristic parameter version conforms to the standard the format of the reply message after receiving the inquiry instruction of the identifier of the signal machine conforms to the standard the format of the reply message after receiving the inquiry instruction of the signal machine conforms to the standard the format of the reply message after receiving the remote control this set instruction conforms to the standard the form of the reply message after receiving the inquiry instruction of the detector the signal machine conforms to the standard requirements; The format of the response message is in accordance with the standard requirements. The product has passed the traffic safety product quality supervision and testing center of the Ministry of Public Security.

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