Driver communication module based on profinet bus
By integrating a Profinet protocol conversion unit and an MCU data processing unit into the servo driver, the problem of complex communication between the servo driver and Siemens PLC is solved, achieving the effects of simple hardware connection, low cost and high communication efficiency.
Patent Information
- Application Number
- CN202520106189.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-16
AI Technical Summary
The existing servo drive requires an external Profinet to CAN module to communicate with Siemens PLC, which leads to complex wiring, large space occupation and low communication efficiency.
Design a driver communication module based on the Profinet bus, which includes a Profinet protocol conversion unit, an MCU data processing unit, and a power supply module. The Profinet protocol conversion unit is directly installed on the servo driver. The Profinet protocol conversion unit converts the data into FSMC interface data and communicates with the MCU data processing unit through the FSMC interface. After processing, the MCU data processing unit sends the data to the servo driver through the SPI interface, realizing the Profinet slave function and bus synchronization.
It simplifies hardware connections, reduces hardware costs, improves data transmission rates and communication efficiency, and simplifies the control process.
Smart Images
Figure CN223857603U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of driver communication module, especially a kind of driver communication module based on profinet bus. BACKGROUND
[0002] A typical equipment motion control system is mainly composed of host computer, motion controller, servo driver, motor, actuator and sensor, and the communication between host computer, motion controller and servo driver is generally realized through field bus. Field bus technology is an advanced industrial control technology, which introduces the concept of current network communication and management into the field of industrial control. There are more than 40 kinds of field buses in the world, including FF field bus, Profibus field bus, CAN bus, EtherCAT bus, etc.
[0003] Profibus field bus is one of the most widely used field bus technologies in the world, which is suitable for communication between automation system and field I / O unit, and can also be used for direct connection of various field instruments and equipment with interface. More end customers use Siemens PLC in the field, which converts Profibus to CAN bus through the controller, so that the host station instruction is given to the servo driver to realize motion control. This scheme will greatly increase the cost, and the hardware connection is complex.
[0004] Currently, a Profinet bus to CAN module needs to be externally connected for communication between servo driver and Siemens PLC. This connection method has the following disadvantages: first, wiring is troublesome, and separate wires are needed; second, the separate external module occupies a lot of space; third, the maximum data amount transmitted by CAN communication is 8 bytes each time, and the single data communication amount is too small, so the communication efficiency is low. SUMMARY
[0005] The utility model solves the technical problem to provide a kind of hardware connection simple, hardware cost is low, and the control process is simple and easy based on profinet bus's driver communication module.
[0006] The utility model discloses a technical scheme that solves the above technical problem is: a kind of driver communication module based on profinet bus, including Profinet protocol conversion unit, MCU data processing unit and power module, the Profinet protocol conversion unit is fixedly arranged on servo driver, the Profinet protocol conversion unit is provided with Profinet protocol communication interface and FSMC interface, the Profinet protocol conversion unit is communicated with each other by Profinet protocol communication interface and siemens PLC controller, the Profinet protocol conversion unit is used to convert the data received from the siemens PLC controller into the FSMC interface data of the corresponding format of FSMC interface, the Profinet protocol conversion unit is communicated with each other by FSMC interface and the MCU data processing unit, the MCU data processing unit and servo driver are communicated with each other by SPI interface, and the power module is used to power the Profinet protocol conversion unit and MCU data processing unit.
[0007] Compared with prior art, the utility model has the advantages that the data received from siemens PLC controller is converted into FSMC interface data by Profinet protocol conversion unit, and FSMC interface data is sent to MCU data processing unit for processing by FSMC interface, and MCU data processing unit can process data after receiving the data of Profinet protocol conversion unit, so that data can meet the internal private protocol of servo driver, and then the data is sent to servo driver by SPI interface, and servo driver checks and processes the received data according to internal private protocol, and then assigns the parameter object according to hardware synchronization signal, to realize profinet slave station function and bus synchronization function;Wherein, Profinet protocol conversion unit and MCU data processing unit can be selected by existing mature chip to realize required function, Profinet protocol conversion unit is directly installed on servo driver, saves space, without separate line, and uses SPI interface for communication with servo driver, and data communication interaction is large, transmission rate is fast, and control process is more simple;Profinet protocol conversion unit and MCU data processing unit can be directly connected by FSMC interface for data interaction, and hardware circuit design is simple, hardware cost is low, and software operation in DSP is simplified.
[0008] Preferably, the Profinet protocol conversion unit uses a first chip with model number MC-10105F1.
[0009] Preferably, the MCU data processing unit uses an MCU chip with model number STM32F205ZET6.
[0010] Preferably, the servo driver adopts a driving chip with a model of TMS320F28377S. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 The system block diagram of the utility model. DETAILED DESCRIPTION
[0012] The utility model will be further described in detail below combining with the drawings.
[0013] As Figure 1 Shown in a kind of driver communication module based on profinet bus, including Profinet protocol conversion unit 1, MCU data processing unit 2 and power module 3, Profinet protocol conversion unit 1 is fixedly set on servo driver 4, Profinet protocol conversion unit 1 is provided with Profinet protocol communication interface 11 and FSMC interface 12, Profinet protocol conversion unit 1 is communicated with each other by Profinet protocol communication interface 11 with siemens PLC controller 5, Profinet protocol conversion unit 1 is used to convert the data received from siemens PLC controller 5 into the FSMC interface data of the format corresponding to FSMC interface 12, Profinet protocol conversion unit 1 is communicated with each other by FSMC interface 12 with MCU data processing unit 2, MCU data processing unit 2 and servo driver 4 are communicated with each other by SPI interface, power module 3 is used to power supply Profinet protocol conversion unit 1 and MCU data processing unit 2.
[0014] The Profinet protocol conversion unit 1 adopts a first chip with a model number of MC-10105F1, and the first chip is specifically selected from a TPS-1 series chip of a RYSE company in the embodiment. The first chip is a communication chip supporting the Profinet communication protocol, integrates a CPU, two Ethernet ports supporting the latest Profinet specification, an Ethernet PHY chip and a peripheral module, and is used for connecting to an application layer of any Profinet IO device. The first chip is communicated with the Siemens PLC controller 5 through two 100 Mbit / s full-duplex Ethernet ports. By burning a specific configuration file, the first chip can convert data received from the Siemens PLC controller 5 into FSMC interface data in a format corresponding to the FSMC interface 12, and is connected with the MCU data processing unit 2 through the FSMC interface 12 to realize data forwarding. The configuration file includes manufacturer information, device type / data, I&M information (IP, MAC address, device name, serial number of the board), TPS-1 working mode and other required information, and can be generated by a configuration tool TPS Configurator provided by the RYSE company. The tool can be obtained on KW-Software software provided by the PHOENIX company.
[0015] The MCU data processing unit 2 adopts an MCU chip with a model number of STM32F205ZET6. The CPU frequency of the MCU chip is as high as 120 MHz, and can satisfy data receiving, processing and forwarding. After receiving the data of the Profinet protocol conversion unit 1, the data is processed so that the data can satisfy an internal private protocol of the servo driver 4, and is then sent to the servo driver 4 through an SPI interface, so as to realize the Profinet slave station function of the servo driver 4. Meanwhile, a hardware synchronization signal is generated through an IO and is sent to the servo driver 4 every time one piece of data of the Profinet protocol conversion unit 1 is received.
[0016] The servo driver 4 adopts a driving chip with a model number of TMS320F28377S. The driving chip is a C2000 series chip of a TI company. When receiving the data from the MCU data processing unit 2 through the SPI interface, the driving chip performs verification processing according to the internal private protocol, and after the verification is passed, the configured parameter object is assigned according to the hardware synchronization signal, so as to realize the Profinet slave station function and the bus synchronization function.
[0017] The data processing processes of the above driving chips are all mature data conversion processing technologies.
Claims
1. A driver communication module based on a profinet bus, characterized in that Including Profinet protocol conversion unit, MCU data processing unit and power module, the Profinet protocol conversion unit is fixedly arranged on the servo driver, the Profinet protocol conversion unit is provided with Profinet protocol communication interface and FSMC interface, the Profinet protocol conversion unit is communicated with the Siemens PLC controller through the Profinet protocol communication interface, the Profinet protocol conversion unit is used to convert the data received from the Siemens PLC controller into the FSMC interface data of the corresponding format of FSMC interface, the Profinet protocol conversion unit is communicated with the MCU data processing unit through the FSMC interface, the MCU data processing unit and the servo driver are communicated through the SPI interface, and the power module is used to power the Profinet protocol conversion unit and MCU data processing unit.
2. The driver communication module based on profinet bus according to claim 1, characterized in that The Profinet protocol conversion unit adopts a first chip with model MC-10105F1.
3. The driver communication module based on profinet bus according to claim 1, characterized in that The MCU data processing unit adopts an MCU chip with model STM32F205ZET6.
4. The Profibus-based driver communication module according to claim 1, characterized in that The servo driver adopts a drive chip with model TMS320F28377S.