Communication method of generator set controller and upper computer

Abstract

The invention discloses a communication method for a generator set controller and an upper computer. The method comprises the steps that an upper computer control terminal group composed of a plurality of upper computers and the generator set controller are connected to a CAN bus; the upper computer control terminal group generates a control instruction set, and any upper computer packages commands in the control instruction set into a CAN protocol frame format and sends the commands to the generator set controller through a CAN bus; the generator set controller receives the command frame in the CAN protocol frame format, responds to the command frame and then replies the command frame, and an error code is set; the generator set controller autonomously uploads data information and alarm information, and packages the data information and the alarm information into a CAN protocol frame format; and the upper computer control terminal group receives and synchronizes the command frame, the error code, the data information and the alarm information replied by the generator set controller and transmitted by the CAN bus. According to the invention, long-distance transmission can be realized, the transmission efficiency is high, and data detected by all nodes on the network at the same moment can be ensured to be consistent.

Description

Technical field [0001] The present invention relates to the field of generator set control technology, more particularly, the present invention relates to a communication method of generator set controller and host computer. Background [0002] At present, the communication between the generator set controller and the host computer is generally through USB, RS485, RS232 and MODBUS RTU, MODBUS TCP / IP and other ways to communicate, however, USB, RS485, RS232 these three communication methods can not meet the needs of long-distance transmission, once the application scenario of the generator set controller includes trains, plants and other places that need to communicate over a long distance, will lose its function; MODBUS RTU this communication mode can meet the needs of long-distance transmission, but does not have a large amount of data, high-frequency transmission capabilities, can not meet a large number of data efficient transmission of the Internet of Things communication nee...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems existing in the communication method between the controller of the generating set and the host computer, such as the short distance with high efficiency, the low efficiency with long distance, and the inability to guarantee the consistency of data between multiple nodes at the same time due to long distance and high efficiency, the invention innovates It provides a communication method between the generator set controller and the upper computer, which can realize long-distance transmission with high transmission efficiency, and can ensure that the data detected by all nodes on the network are consistent at the same time, and has a simple structure, high-speed , anti-interference, reliable, low price and other advantages

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