Gateway of communication between Ethernet for control and automation technology (EtherCAT) and CAN, and communication method thereof
A technology of CAN communication and CAN bus, applied in the direction of bus network, network interconnection, network connection, etc., can solve the problems of inability to communicate with each other, achieve low cost, stable operation, and simple effect
Active Publication Date: 2013-07-31
GUODIAN NANJING AUTOMATION
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However, there are obvious differences in communication protocols between EtherCAT real-time industrial Ethernet and CAN bus. Therefore, when there are both EtherCAT industrial Ethernet and CAN bus in the automation system, they cannot directly communicate with each other. A gateway needs to be designed to solve this problem.
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[0019] The present invention is described in detail with reference to the accompanying drawings. Such as figure 1 As shown, a gateway for communication between EtherCAT and CAN includes an EtherCAT protocol transceiver 1 , an EtherCAT protocol controller 2 , an ARM central controller 3 , a CAN bus controller 4 , and a CAN bus transceiver 5 . Described ARM central controller 3 is bidirectionally connected with EtherCAT protocol controller 2 and CAN bus controller 4 respectively; Described EtherCAT protocol controller 2 is bidirectionally connected with EtherCAT industrial Ethernet by EtherCAT protocol transceiver 1; Described CAN The bus controller 4 is bidirectionally connected with the CAN bus through a CAN bus transceiver 5 .
[0020] A communication method for a gateway between EtherCAT and CAN communication, including a method for converting EtherCAT data into CAN bus data and a method for converting CAN bus data into EtherCAT data, specifically comprising the follow...
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The invention discloses a gateway of communication between Ethernet for control and automation technology (EtherCAT) and CAN, and a communication method thereof. The gateway comprises an EtherCAT protocol controller, an EtherCAT PHY, an ARM central controller, a CAN bus controller and a CAN bus transceiver. The ARM central controller is respectively bi-directionally connected with the EtherCAT protocol controller and the CAN bus controller. The EtherCAT protocol controller is bi-directionally connected with EtherCAT industrial Ethernet through the EtherCAT PHY. The CAN bus controller is bi-directionally connected with CAN bus through the CAN bus transceiver. In the invention, data exchange between the EtherCAT protocol controller and the CAN bus controller can be realized through the ARM central controller; an interconnection problem of the communication between the EtherCAT real-time industrial Ethernet and the CAN bus.
Description
technical field [0001] The invention relates to a microprocessor-based gateway for data conversion between real-time industrial Ethernet EtherCAT and CAN bus and a communication method thereof, belonging to the field of industrial automation control. Background technique [0002] With the increasingly popularization of real-time industrial Ethernet technology, the Ethernet technology used for office and information automation began to gradually extend downwards, and was directly applied to the automation control of field devices. [0003] EtherCAT (Ethernet for Control and Automation Technology) is a real-time, high-speed Ethernet communication protocol for industrial automation. It has the characteristics of large transmission capacity, fast transmission speed, high clock synchronization, low implementation cost, and good openness. It has been used as a standardized technology and is part of the international standard IEC / PAS62407 and ISO1574-4. EtherCAT uses full...
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IPC IPC(8): H04L12/66H04L12/40H04L12/46
Inventor 邬东晓王丹麟鹿海霞谢李丹
Owner GUODIAN NANJING AUTOMATION