EtherCAT is a real-time industrial Ethernet technology proposed by German BECKHOFF Automation in 2003. It has the characteristics of high speed and high data efficiency, and supports a variety of device connection topologies. The slave node uses a dedicated control chip, and the master station uses a standard Ethernet controller.

EtherCAT is an industrial Ethernet technology, and most of the application scenarios seen are servo motors. Because it is based on Ethernet technology, EtherCAT is much faster than the CAN bus. EtherCAT CAN reach speeds of 100 megabits, whereas CAN can only reach 1 megabits. In addition, EtherCAT features low latency and accurate synchronization.

IC698CHS009 Whether it is Industry 4.0 or the Internet of Things, it requires a high degree of networking and strong communication capabilities between devices and servers. EtherCAT is a kind of mature industrial Ethernet fieldbus, specially used in the field of motion control. Compared with the traditional industrial fieldbus, EtherCAT has many advantages such as high stability, high real-time, high integration, strong scalability, easy installation, etc., breaking through the system limitations of the traditional Ethernet scheme, and is widely used in the field of industrial control.

EtherCAT control system is generally composed of HMI/WEB interface system, master station controller, several slave station controller and servo motor. HMI/WEB interface system is used to send control instructions and display man-machine interface; EtherCAT master station is generally implemented through embedded hardware, Linux system real-time patch and EtherCAT master station software, and the communication of EtherCAT master station is realized through Ethernet card. EtherCAT communication is used between master controller and slave controller, which can realize real-time control and real-time data transmission of closed-loop servo system.

EtherCAT control system architecture

IC698CHS009 The master station controller based on MYC-YT507H core board, the software part through the kernel Preempt_RT real-time patch and transplantation of EtherCAT open source master station software IGH, can achieve more intelligent EtherCAT master station control.

Data communication through the native Gigabit Ethernet interface of T507-H and WEB MES system; The native 100 megabit EtherCAT interface communicates with the slave servo driver to control the servo motor in real time. RS485 interface is connected to serial sensing equipment for temperature, pressure and other data collection; The input and output of digital signals are connected through the DI/DO interface; Because T057-H does not support CAN function, it is used to connect CAN bus devices through SPI to CAN. An HDMI interface is also provided for communication with the interface of the human-machine interface or the display.

Master station controller based on MYC-YT507H core board

IC698CHS009 MYC-YT507H core board, the use of domestic car gauge processor full T507-H, with the most stringent quality standards, ultra-high performance, rich peripheral resources, cost-effective, long supply time characteristics, suitable for high-performance intelligent equipment required by the core board requirements.

MYC-YT507H core board
• Super computing performance: quad-core Cortex™-A53 CPU, 1.5GHz main frequency, G31 GPU, support 4K@60FPS H.265 video decoding, support 4K@25FPS H.264 video coding;
• Rich multimedia support: supports LVDS, HDMI, RGB and CVBS four display output interfaces, can support dual screen display, dual screen display, to meet the requirements of multi-screen application scenarios; Support MIPI CSI, DVP camera input;
• Rich peripheral expansion: Support dual network ports, 4 USB2.0 interfaces, 1 SPI, 5 UART, 2 SDIO.
• Reliable quality: Onboard global T507-H processor, PMIC power management chip, LPDDR4, eMMC, core board PCB size 43mmx45mm, SMD package, through the 10-layer PCB board sinking process, solid and reliable.

MYD-YT507H development board

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